Bre 101 PAST cl é STION AND ANSWER SS Sl La | Cy) ag =~ £& x gx cate ¢ BIOLOGY 101 eqynn tss8® \@ gpk ot og ti arent yoo ante EDUCATION IS AKEY TO SUCCESS f, i lis PEUNIVERSITY OF MAIDUGURr FA" ~ J 1 FACULTY OF SCIENCE DEPARTMENT OF BIOLOGICAL SCIENCES SECOND SEMESTER END OF COURSE EXAMINATION 2008/2009 SESSION BIO 101 PLANT FORM AND FUNCTION 3 units Instruction Answer all Questions Time: 3hours _ As 1. Which of these is associated with the colour of school* s uniform? ww (a) Acacia senegal oO khaya senegalensis xh (c) acacia nilotica (d) acacia seyal (e)P. juliflora. 2. Which of these is associated with writhing rial ? (a) Acacia Senegal (b)khaya senegalen, & C)acacia nilotica @acacia seyal (e) Pi juliflora. 3. Which of the following depresses erent? * (a) acacia Senegal (b)khaya se lentis F (c) acacia nilotica (c) acaci. tica (d)acacia seyal ‘ (e)Prosopis juliflora. 4. — In carbon three (C-3) pig e first stable product = which also forms lipids Proteins is ---------- Pann (a), PGAL (c) rubisco (dJoxaloacetic acid (e)phosphoe! 5. khaya senegale ontains: at resins (c) Tanins (d) “Alkanoids hides. withdraw from a stimulus by a form of ---- ic movement (b)phototropism jeotropism (d) taxis (e) aandb th you are wearing contain: Parenchema (b) collenchyma © cellulose (DQ @_ Aa (e188 © Carbohydrates are growth substances-----------__ true (b)False (c)a and b (d) hormones (e) none 9. Plants do not move Positively towards dark (a)true (b) false (c) a and b (d) none of the above. Breakdown of chlorophyll is delayed by----------- TAA (b)IBA (C) cytokinin (d)ABA {Ke tryptophian, ; resources center, Home of Materials: Call 0805111911523; 24, 25. 26. 27. 28. | Happy Reading | Ce Which of these is a source of vitamin A (a)xanthophylls (b) orange (c)lemon (d)carotenes (e) none of the above. Which of the following yield more energy................. (a)glucose (b) lipid (c)protein (d) fructose (e)none of the above In Kreb cycle acetyle CoA combines with a four carbanty compound called: AS (a)malic acid (b)citric acid (c) oxaloacetic acid ( (QV pyrovic (e) a and b In plants anaerobic respiration forms ... (a) phosphorylated sugar (b) ethanol (c) COXA) ethanol and Co, (e) none of the abov alyptus camuldulensis grown AN oil (b) Alkaloi (c)gum ) dannin (e) resins lateral meristem producers ‘hjured plants part is rea of the pical meristem (b)fatg ambium (c) cork © jum (d)apical cag m (e) none of the above. in storage of seeds.......... n ee Slabsceae acid ED sna ieee (© co and14. 15. 16. Tt 18. 19. 20. —_ 22. 23. 2 ANANANANANRANANANANY Happy Reading —— (a) phosphorylated sugar (b) ethanol (c) Co; (d) ethanol and Coz, which of these is the source of vitamin A. ‘ (a) xanthophylls (b) orange (c) lemon (d) carotenes (e)none of the above Allealoid can be found in. (a) Khaya senegalensis (b) prosopis Afriana (c) prosopis juliflora (d) acacia seyel w in krep corle CoA combine with four carbon compound A called, Qy (e) aandb which of this is important for protein synthesis (a) monoccics (b) lysosomes (c) nucleus (d) en reticulum (e) a and b y Nicotine is found in we (2) Tea (b) tobacco (c) proppy (d) cin Tartaric acid is found in. el Cc) (a) malic acid (b) citric acid (¢) oxaloaetic (d) roe smic (a) balamites deayphdel (b) acacia s) acacia mlothea (d) dataridus indica (e) none of the Which of the following g yields (a) Glucose (b) lipid (c) protei above. Quinine is found in (a) lyopersicon escule! heven inassitenin (c) tamaridus indica (d) giscania a (e) none of the above energy. ) fructose (e) noneof the | meristen (b) lateral combin (c) cork cambium (d) ‘ombium (e) none of the above these can lead to premature dropping fruits 4, Qa) cytokinin (b) ascetic (c) absissic acid (d) auxin (e) none of S the above \ . A healthy yellow leaf has, @ No chloroplast (b) xanthophylls (c) noliving ell (d) no int (e) 26. | (e) nore of the above 27. The hoemo: | it seeds have. @ ie auxin (b) phenolic (€) no giobuellins (d) nocytokinin (e) ne used in storageQuestion and answer (Q&A) Second semester End of Course Examination 2006/2007 Session Plant form and function 3Unit Instructions: Answer All Questions 1 A continuous positive relationship between photoguillelically active radiation and assimilation occurs in (a) C-4 Plants (b) C-3 Plants (c) a and b (d) wheat (e) oats Answer: (b) C-4 Plants Balanites aegytiaca fix carbon to form....... (a) Oxalic acid (b) Malic acid (c) PGA (4) naphalogious (e) oxaloacetate Answer: (c) PGA. An anatomical feature of the C-4 plants is the procession of .. if (a) bundle sheatt cells (b) xylem (c) phlean (4) collechyma (e) penenchma ‘Answer: (b) Xylem In carbon three(C-3) plants in the first stable products which also forms lipids and protein is. . (a) PWAL (b) PGA (c) rubisco (4) oxaloncetic acid Answer: (b) PGA 5 Bacteria can withdraw from stimulus by a form of... (a) nastic movement (b) pholotogism (c) geotropism (d) taxis (e) a and b Answer: (a) Nastic movement. 6. The name of plant hormones found in Aspirin is.........000+0:000 (@) auxia (b) cytokinin (c) salicylic (4) [AA (@) IEA Answer: Auxia. 7. Carbohydrates are growth substance. (a) True (b) false (c) a and b (d) hormones (e) none of the al ‘Answer: (a) True 8% Plants do not move positively towards dark......... N @) (b) false (c) a and b (d)none of the above. Al + (a) true. j reak down of chorophyll is delayed by ... ao 7G) TAA IBA) cxtoknin() ABA) open ge 10. # + (@) fibres eR 5: Thormones have to be transported to target organs... te "Oo true (b) false (c) a and b (A) translocation (e) [AA 2 ee r E ai Sen (@) texism (c) nastic movement (4) wediotrpism (e) none of the above. ae an (b) infrared gas \ gi (©) photosynthesis (d) photometer (e) none ie Answer: (¢) none of the above. 14, —— of the: is produced during cold stress... 0 aHappy Reading — (a) mesophytes (b) hydrophytes (c) xerophytes (d) a and b (e) none of the above 44. Crassulacae acid metabolism (CAM) plants are (a) mesophytes (b) hydrophyte (c) xerophytes (d) a and b (e) none of the above 45. Which of these is a feature of prokaryotic cell Be (a) protoplasm (b) nucleus (c) nucleoid (d) fikesome (e) a nda H . 46. _Flagelless are found in the cells of __ Wy (a) Angiosperm (b) highter animals (c) algae (d) ploridipiexes (e) none of the above Y 47. Which of these is best index of growth, (a) leaf area (b) leaf maker (c) green area al iomas (e) none of the above 48. Which of these is the best index growth. (a)Gymnones (b) Angios (c)Blue green , }) aand b 49. Hormornes that control nastic moveme! (a)vernalin (b)florigens (c)IAA (d)cytokiXjv(e) thergorins 50. Solar tracking is a form of (a)taxism (b)florigens (c) nastic lent (dja and b (e)none of the above 51. The development of a biocherg substances as a result of a stimuli is called.......... (a) Response (b) trang Rn (c) perception (d) movement (e) geotropism 52. Arolling up of leaveapWespect to water stress is called. (a) Thigmon: tHe Hydronasty (c) hyponasty (d) epinasty (e) response 53. Plants that es their life cycle within weeks are called (a) Anny 54. Thi }) perennial (c) biennial (d) ephemerals (e) a and b ommon gum production plants is laria pava (b) acacia nilotica (c) acacia Senegal (d) ‘seyal (e) khya senegalent 55. _Phwhts under water stress do close their stomata to. (Qa To maximize water loss (b) maximize water use efficiency “ (c) to cool off (d) maximize (e) none of the above Q r a pidermis with a sunken stomata is a characteristics ol (a) Humid plants (b) desert plants (c) water plants (d) hydrophytc (e) submerged plants Cpe i pore! state apart from rice the most tolerant low oxygen JAM IS -oesseconsee (2) millet (b) tomato (c) Okro (d) maize (e) sugar cane59. 60. 61. 62. 63. 64. 65. 66. 67. 68. 69. 70. ae Happy Reading —— The essence cf diffusion and osmosis i : (a)to get di'fe-ent concentration (b)no movement (clequa conc:ntraticr (d)a and b (e) Te of the above. while oat leaf at full sunlight wil (a) keep photosynthesizing (b) stop photosynthesizing oS some point (c) stop transpiring (d) none of the above (e) - . Native plants in Maiduguri fix carbon from PANY (a) malic : ¢f¢ (b) fumaric acid (c) succinic (d) Acetyl CoA yw The hormone used for plantlet production is. (a) Giberellic acid (b) auxin (c) florigens (4) ‘cytokinin Y Non-directicnai movement are controlled by.... ‘& (a) Allclochen icals (b) ohytoalexins (c) turgorins Cherrical prociuction by plant to inhibit other plantgy: callec...... (a) phytoalex rns (b) alleclochemical (c), Which of these is used in ink production, \! | (a) plastic (5) gum (c) Tannis (d) alkalon ) none of the above At opzimum condition a leaf in bright, ase ht will have. : (a) Hgh lee* temperature (b) lor emperature (Cc) low assirrilatior (1) none of the abo; Practical Nc.4 was conducted ea termine. (a) Osmosis (bE) Bere :) transpirati none of the avove Practical Nc .5 was con we to determine... jorigens is (d) sterols hormones (e) (a) Csmosis es < in (c) gum (d) alkaloid (e) none of the above . Maize leaf < run cit wi (a) keep et nthesi: op photosynthesizing (c) stop sgh (d) none ar tne above (e) a and b In Peach ob 7 the specimen supplied was......... a ) reot (c) flower (d) fruit (e) none of the above neg lensis are sources of excretory product.. nis (b) gums (c) allelochemical (d) alkaloid (e) none of gens | Give che application of plant growth substance in agficutture Examiner D2 E.T Rabo chief Examiner DR.ET.44, 48. 49. 51. 92. 53. 54. 35. 56. Which of these is an example of C-4 plants. (a)wheat (b) oat (¢) sugarcane (d) barly (e) maize Answer: (e) maize ‘An example of C-3 plant is. (a) wheat (b) maize (c) millet (4) barly (e) a and b. ‘Answer: (a) wheat Which of these is a stress hormone rs (a) cytokinin (b) phenolic (c) methane (4) ethylene (e) ethanol Storage of seed at low temperature to induce hormonal production is called. (a) Dormancy (b) scantfication (c) stratification (d) bioassay (¢) RF zone Answer: (d) bioassay The ability of vegetative growth in a flower is called. {@) flowering response (b) competence (c) monstrous development (d) ripeness to flow (©) photoperidism. ‘Answer: © monstrous development Even under optimum condition plants will not flower... | (@) until competence (b) photopemadism (©) ‘vemelization (d) muaral salt and florigen (¢) a | and | Answer: (a) unt Exeretory products produced at points of infection are called. {@) allelochemoils (b) acids (c) phytoalexins (4) pathoger (¢) naphthalene acid Plant growth substances at high concentrate are. (a) herbicides (b) promote (c) bioassay (d) wheat colcophil ies (@) aan b In practical number 3; the fruit supplied was... (a) drupe (b) cabsul (c) bulb (4) nut (¢) berry In practical number 5; the mechanism of pollination is (@) bat (b) self (c) wind (A) insects (€) berry “The difference between the cell and onion cell observed in practical number ii is. | (@ nucleus (b) mitochondrion (c) ribosomes (4) protoplasm (c) rigid size | Answer: (b) mitochondria ‘The end product of protosynthesis occurs in form of... (@) solid (b) solute (c) gas (d) a and b (¢) none of the above. Answer: (b) solute ‘The process of transpiration. (a) physical process (b) biochemical process (c) metamorphic process (4) a and b (e) none of the above. Answer: (a) physical process. ‘The absence of osmosis or diffusion in plants is to . @ ee cece aac klbeics (@ maid opoen aed me fic is ‘competence60, 61. 62. 63. 65. 67. 68. Answer: © isotonic system. Which of these is an example o fprokaryotic cell. (@) gymnosperms (b) angiosperm (¢) pleridophyte (4) blue green algae (e)ggpe of the above Answer: (b) angiosperm Which of these is feature of prokaryotic cell. (a) protoplasm (b) nucleus (¢) nucleoid (4d) fileosome (¢) a and b. Answer: © nucleoid. flagelles are found in the cells Of....+++++00- (a) angiosperm (b) higher animal (c) algae (d) ploridiohytes (¢) answer: (c) algae crassulacca aid metabolism (CAM) plants are. é |(@)_ mesophytes (b) hydrophytes (c) xerophytes (4) a and b Which of these is the best index of growth. (@) leaf area (b) leaf maker (c) green area duration (4) biomass (¢) none of the above Answer: © green area duration Plants that complete their life circle within weeks are called.. (@) annuals (b) perennial (c) biennial (4) ephemerals (c) a and b ‘Answer: (d) ephemerals Solar tracking is a form of (2) taxism (b) tropism (c) nastie movements (4) @ and b (e) none of the above: + (a) taxism ‘The development of biochemical substances as a result of stimlin is called (@) response (b) transduction (c) perception (A) monvement (2) getropism ‘Answer: (a) response ‘A rolling of leaves in responses to water stress is called |) thigmanasty hyo nasty (©) byponaty (0 eninany (9) response Answer: (b) hydro nasty Hormenes that control nasty movements are called | G@) vernalin (6) florigens (c) IAA(@) cytokinin (e) thergorins ‘Answer: (¢) thergorins “The most common gun producing in Borno state is : (@) vitllara pava (6) acacia nilotica (c) acacia Senegal (4) acacia sea (<) Khaya sngatensis ‘Anmswer: (€) Khaya senegalensios Plants under water do close thir stomata 10.-.-.000-- (a) to maximize water loss (b) maximize water use efficiency {© to cool off (4) maximize photosynthesis (e) none of the above ‘Answer: (b) maximize water use efficiency ‘Am epidem with a surker stomata is a characteristics of .19. 20, 25 26. 21. 28, 28. 30 All these are importance of transpiration except (@) It facilitates the upward movement of solution in the xylem (b)_Ithelps to prevent excessive heading (¢) it helps in the absorption of Food (4) it effects a water transpiration Answer (b) it helps to prevent excessive heading All these affect water absorption non-these except (@) Soil temperature (b) concentration of the soil solution (c) wind and humidity (4) availability soil water Answer (b) Concentration of the soil solution ATT’s formed in photosynthesis in formed through a process known as. (@) oxidative photophosphary lation (b) oxidative phosphersylation (b) photophosphary lation (4) none of the above Answer (b) oxidative phosphersylation Reaction I which energy is required are termed....reaction (a) exetgonic (b) houdegonic (c) redengonic (4) bands Guard cells are different from other epidenual cells because they contain (@) Chlorplast (b) starch grain (c) glucose (d) all of the above ‘The stomach opens when (a) The guards cells absorb water and become flaccid (©) The guard cells lose water at 1 become flaccid (©) The guard cells absorb water and become plasmolysed (@ None of the above Answer: (b) The guard cells lose water and become flaccid | Minute inclusions of the cytoplasm arising called from the endoplasmic reticulum are (@) ribosomes (b) lysosomes (¢) oil pramules (4) starch deposits Answer: (a) Ribosomes. Elements required by plants is large amounts are known as, (a) essential elements (b) non essential elements (c) available elements (4) non available elements. Answer: Essential elements. ...».contains enzymes that responsible for the oxidation of food substances. (@) cytoplasm (b) mitochondria (c) nucleus (d) endoplasmic reticulum Answer: (b) Mitochondria. The outmost rigid covering of the cell is known as. : (@) cell wall (b) cell membrane (c) plasmodesmata (4) cytoplasm. Answer: (a) Cell wall. | The vacule plant cell is filled with watery fluid called. | (@) protoplasm (b) celisap (c) surgary fluid (4) water | Answer: (b) Cell sap. {sa constituent of ATP, phospholipids, mucicid acids and so enzymes ae ‘227 2s 30. 31. Ba Avswer: (5) clive transport “The process ir. (326 can be measured by (2) Barom-te: (») photometer (c) osmometer (4) thermometer Answer: (9) Photometer The net tendency of water to be drawn into roots fom a pressure is 30 ard turgor pressure is 19 is... i | i iH @) 30 ® -1O@ u @ 49 t Aaswer; (d) 49 Guttation can b: used to demonstrate the presence of... in plants Water and minerals are circulated round the plant through the pr (©) Osmetie and diffusion (b) diffusion and active transport (c) 4 ffusion end c-closis Answer: (2) Piffusion and eyelosis To induce early flowering in plants one ean apply (®) IAA ©) nitrogen (©) cytokinins (@) Gibberellic acid Answer: (9) LAA ‘One would need to apply....to cassava stem cutting in order to induce fast root production. “(s) TAA () tokinins (€) Gibberellic acid (4) ATP Answer: (6) Gibberellie acid | Cetin m:n clement that are actively moved across plant m @ @ P 0 N@K36. 38. 39. 40. 4 Potassium (b) phosphorus (¢) nitrogen (d) calculi Answer: © Nitrogen The element needed for LAA synthesis and is component of amino acid i (@) zinc (b) carbon (c) hydrogen (4) oxygen Answer: (b) Carbon Phlosm is a complex tissue concerned with. @ anslocation of dissolved food substances (b) transports of mineral matricats (c) transport of water () transport of oil Answer: © Transport of water. The photoplasmta consists of (@) nucleus and cytoplasm (b) lysosomes and ribosomes (c) nucleus and protoplasts (dy endoplasmic recticulent and uncleus Answer: (a) Nucleus and Cytoplasm. The xylem is a {a)simple tissue (6) complex permanent tissue (¢) meristematic tissue () dividing Answer: (b) Complex permanent The chloroplast is abundant in green plants and has colour due to the present of (a) chlorophyll (b) leucoplast (e)chromophyll (d) xanthophyll Answer: (a) Chlorophyll The mass flow theory is the most acceptable theory of (@) phloem translocation (b) ascent of solutes (c) movement of dissolved minerafs (d) ‘movement of water. Answer: © Movement of dissolved minerals Xylem fibres, trancheids and vessels elements are unique to the (a) phloem (b) collenchymas (c) xylem (d) selerenchyma, Answer: © Xylem a group of immature embryonic cells that have the power of dividing are called. (@) collenchyma tissue (b) meristematic tissues (c) permanent tissues (d) glandular tissues Answer: (4) Glandular tissues Intercalary meristems are present in. (a)growing region (b) in the internodes and leaf blades (c) along the side of stems and roots. Answer: © Along the side of stems and roots Collenchymas tissue function on. (@) supporting young part of stem, leaves and some flowers (b) supporting xylem in transporting water (c) supporting parenchyma in healing wounds (d)regenerating plant parts Answer a) Supporting young part of stem, leaves and some flowers. ‘The death of shoot tips and disintegration of internal tissues result from.. (@) nitrogen deficiency (b) molybdenum (¢) iron deficiency (d) magnesium deficiency = 7Answer: (0) Molybdenum deficiency voile wena tissue) phloem vssues (©) ON-VASCUar | issue (8) seerchyma uswer: (b) ?hloem tissues carotenoi¢s a°e divided into two namely Ge) Chromaiasts and chloroplasts (6) carotenes_ and xa ie sypiop ts and proteoplasts () plastid and Xanthing + (b) Carotenes and Xanthophylls eis responsible in. g wounds and regenerating plant parts (b) transporting water and minerals (2) transporting salt and water (d) translocation of dissolved salts Answer: () T-ansporting water and minerals slereids «ac {bre are component of. («) collencin 2; (b) selerenchyma (c) parenchyma (4) phloem. Answer: (5) Selerenchyma i the most abundant compound in the translocation stréam (a) maltese (b) sucrose (¢) mineral Nutrients lactose Answer: (c) Mineral nutrients 47. All these are changes in the cell wall of plants the cell growls except: (2) cutting é2y sition (b) lignin deposition (c) nuclear deposition (d) suberin Deposition ‘Answer: ¢) Nuclear deposition 48. he stamens ad the carpels together make up the. cts (a) upper *ss-rtial whorls (b) petals (c) lower accessory whorls (d) anddroecium Answer: (b) Petals 9. ‘The function of sexual reprouction in plant is performed by (a) Leav2s (b) calyx (¢) Flowers (@) root 50. “he fission of two gametes with female cells, unique to flowering plants referred si. (a) Emb:ye () single fertilization, the zygote (d) double fertilizatiod Answer: (d) Double fertilization ‘ollowing fet lization, the zygote develops into the. (@ovule b) ovary (c) plumute (d) radical Answer: (b) ovary A fiuit is a Ceveloped....... ‘ovules (L) ovary (c) plumute (d) radical ‘The ipronary: endosperm nucleus arises es a rosult of fusign of the male nuclei vith the « i Zo60. 61 62. 63, Answer: (a) Egg cell Plants response to stimuli do not come from any part {a) Tropism (b) Nastic movements the Answer: (b) Nastic movement Shoots grow towards light and are said to be. (a) negatively phototropic () positively phototropic (c) positively geotropic (d)positively photonastic Answer: (b) Positively phototropic. Thigmotrpism is plants response to. (@) chemical substances (b) tough (c) nastic movement Answer: (b) Tough Growth of the root towards moisture is (@) geotropism (b) hydrotropism (c) chemotropism (d) hydronasty Answer: (b) Hydrotropism response to various stimuli can be explained on the basis of organic compounds (a) enzymes (b) hormones (c) nucleic acids (A) alkaloids Answer: (b) Hormones “Trepism is the plants response to. (a) internal stimuli (b) directional stimuli (c) stmt Answer: (b) Directional stimuli The movement of molecules or ions from a region of their high concentration to a low concentration (@) osmosis (b) diffusion (c) active transport (@) endocytosts “Answer: © Active transport. Energy consuming transport of molecules or ions across a membrane agians a concentration gradient is. (@) osmosis (b) active transport (2) exocytosis () pinocytosis Angwer: (b) active transport. In osmosis, water molecules move from (@) a region of high concentration to low concentration (t) a region of low concentration to high concentration (c) against a concentration gradient (8) across the plasma membrane. Answer: (b) A region of low concentration to high concentration. Movement across the plasma membrane is necessary 10... (@) obtain Co; and nutrient(>) obtain O; and nutrient (c) obtain nutrient alone (a) obtain chemical substances. Answer: (d) Obtain chemical substances. aplace in extend solution whose solute concentration the cell Aaswer: (2) cxters the plant ee! last from the cell wall (b) exps (@)shrinl-ag> of the proto 1 tur ic t of plant cell (d) none of the abo Answer: (1) brinkage of the protoplast from the cell wall process ‘iy which products of metabolic activities are) removed fom the u (@) secretion (1) exeretion (¢) respiration (4) tran Answer: () Zxeretion vsides ar> Jecomposition products of. 5 (b) proteins (c) vitamins (4) nulei acids. (©) carbo vers Answer (<) Carbohydrates 68. Products. of decomposition of the cellulose cell wall which are exuded from in-usome p u's are called ) latex “) gn (¢) resins (4) tannia Answer: (a) Latex 6. Which of he « is not an excretory product? (9) alkakcide (>) g ins (c) water Mineral ery’s Answer: (a) Atkaloids 70, Ey’produc's f metabolism have considerable importance (a) autitive (%) economic (¢) so al (4) med Answer: (a) Natritive Fxaminer:: otof,P.O.Donli. Mrs. Z.Tola and Mrs. S. Damagum Chief exanire: Mr. C.L. Iwuohe University of Maiduguri Faculty of Science partment of Biological Science Question and answer (Q&A) Second Senester End Of Course Examination 2004/2005 session BO 101 plant form and function unit Instrectiors: ‘answer questions in both section A and B Time: 3hours Al question carry equal marks (Imark each) SECTION A 1 Basic dif'crexce between a plant and animal cell i. (©) photoy ias:s (b) nucleus (c) plastid (4) membraneLL. 3 Answer: © Plastid, ‘Who promulgated the cell theory of plants {®) Schwann (b) Robert Hooke (¢) Sleiden (4) Gr, Answer: Robert hooke The nue Mendel cus ad the nucleiod carry out the same function (@) True (b) False Answer (b) false Plasmadesmata are responsible for ) Support (b) intercellular connectivity () intracellular connectivity (@) synthesis, Answer (b) Intercellular connectivity Plant tissues are generally categorized into 32 namely (@) simple and complex (b) lateriald and apical (c) simple and permanent (@) meristematic and permanent Answer (a) Simple and complex The following cells ae found in primary thickening of plants {a) Cork cells (b) selerenchyma (c) stone cells (4) none of the above ‘Answer (b) Selerenchyma Slerenchyma and collenchymas cells are always found in (a) Roots (b) leaves (c) stems (4) flowers ‘Answer: (a) Roots ‘The epidermis always contain secondary thickening materials (a) True (b) False Answer: (a) True In plants that have undergone secondary thickening the epidermis is replaced by (a) Pha (b) phellogen (c) darmis (4) parechyma ‘Answer: (d) Parenchyma Cork tissues are (a) Preely permeable (b) semi permeable (c) not permeable (4) all of the above “Answer: (b) semi permeable Metochondria are refered to as the powerhouse of ihe cell because they contain: (af Respiratory enzymes (b) ATP (c) photosynthetic enzymes (@) oxidation enzymes |Amswer: (b) ATP Ihe periderm is always found in plant tissues (a) True (b) False Answer: (a) True {All the following are example of a simple permanent tissues except (a) Peridermal tissues (b) collechymatous tissue (c) cork tissue [@Apial mcinnn —eAnswer: (a) Keep photosynthesing {mn angiosperm one of the male gametes fértilizes the (@) Egg (b) endosperm nucleus (c) polar nuclei (6) Answer: while the other fetilizes the Bids Plants in the sahel fix carbon to form (@) Malic acid (b) fumari Answer: (d) acetyl CoA id (€) succinic acid (d) accty' CoA Hormones in plants are transported through (© Phloem (b) xylem (€) medullary rays (4) cambium “Answer (d) Cambium Plants undergoing water stress contain (2) Abscisic acid (6) cytokinin (¢) auxin (€) Giberelie 55d Answer: (a) Abscisic acid | The hormone responsible for fruit dropping is |) Cytokinin (@) abscisic aid (€) TAA (@) auxin 1 "Answer: (€) TAA | i ‘A farmer his crops to stay greca, which of the following hormones ie (©) NAA () ese aid (©) Cokin auxin Answer: (2) Auxin Morphine is an excretory58. 60. 61 Answer: (:) vernalizaiton Answe= («) flower Khaye senegalensis (b) acacia nilotica (¢) acacia seyal (4) girechon sme- («) Kaya senegalensis nical sroduced by plant to inhibits other plants are called Phytoclexins (b) allelochemical (c) flavoniods (é) sterols, Answe- (?) Allelochemical The co'ou: cf pelab and sepals is caused by the presence (2) carte vids (b) flavonoids (¢) chlorophyll (4) none of the above Answer (.) Chlorophyt The ¢o:2b-:ssociated with plastic is caused by a group of compound called (2) Flavor ods (b) carotenoids (c) chlorophyll (2) anthocyanins Answer (°) Chlorophyll Commre'ally produced isopreries include (2) Qwinire (b) morpjine (¢) rubber (4) nicotine Answer () Rubber Instantancos gain in carbon can be measured with (2) photo nter (b) auxonometer (c) infrared gas analyser Plants =<: pied to low water level are called (2) Hylal oe (b) preumatophore (c) hydrophyutes Answer (:) bydaltode Which of :his associated with waterl (@) Thick berks (b) sunken siomata (c) thick leaves (d) preumatophores Answer (a) Thick barks Leaf f 1's controlled by (2) IAA (b) eytokino (c) abscisic (4) Giberelic acid ged plants Answes (2) Abscisic In gylcol)sis the end product that enter the TCA cycle is (a) Melic acid (b) pyruvic acid (c) acetyl CoA (4) isocitric acid Answer (.) Acetyl CoA Respiration involves gylcolysis, TCA cycle and (a) Fermea’ation (b) hexose shunt (c) electron transport (8) anaerobic respiration Answer (c) Anaerobic respiration In carbor. 3 plants, the first stable compound is (a) Ritoiace hiophosphate (b) phosphoglyceric acid keto acid (d) oxaloacetate6. Answer (b) Phosphoglyceric acid keto acid In carbon 4 plants the first stable compound is called (@) Phoshoerol pyruvate (b) oxaloa ate (c) phosphoglyceric acid (d) Rubisco Answer (b) Oxaloacetate Phosphoglyceric acid is a common pathway to the formation of (2) Carbohydrates only (b) proteins only (c) lipids only (A) all ofthe above Answer (b) Proteins only Which of the following can inhibit respiration (@) Ghucose (b) protein (c) lipids (d) cyanide Answer (a) Glucose The total number of ATP produced during comple @6 3 © 4% @ 56 rxidation of hexose is Answer (b) 36 The electron transport chain system in cells take place in: @ Kreb’s cycle (b) mitochondria (¢) protoplasm (4) vacuoles Answer (a) Kreb’s cycle