Lee epee / 1 KRAWA STATE unwist Y, KEFFI “ULTY OF NATURAL AND APPLIED SCIENCES {{TIMENT OF BIOLOGICAL SCIENCES REXAMINATION 2014/2014 5 SESSION Course Code/1 Credit Units: Time Allowed: IO 11.1/GENERAL BIOLOGY L a nh Instruction: ‘Answer any four questions — at least two from each, Section. ‘ Section A 21a) How di ‘slug Linnaeus and scientists in his time classify living organisny b)— Distinge sh between the classificetion i vecent times (i) What is 1a) and that of Biologists in the significance of the binomial nomenclature system for naming organisms (fi) Give four rules for writing scientific names. What is otic environment? b} Distinguish between Tiaga and Tundra a) List and exptain three types of cutis based’on: f. Cell content ii. Cell nt CAR [otaonawe function 1y fh) With the eid efa diagram, deserize the general structure of an cularyoic call Sectivn \ ae: tate and exp'ain the different arpects of the cell theory fe by) Write short nates on any tayo of che fallowingeell organelles: ’ (i) Cilfagna A agjella (ii) Mitochom¢ ria (il) Chloroplast v Ss :o 5, © a) Explain the following terms (1) Mierohabitat (1) Edappiie factors (Hi) D a : De D Biosphere. Qs b) List the charactevistic features of Tropical Seasonal Forest. gz Ve wm Se 6. a) List four types asexual reproduction and briefly explain each. b) Briefly & csich of the foltuviing plenomena of iiterrelationships among living emypriging with at lerst one example of each (i) Cominensel deme (i) Mutuatism (1i} Competition (jv) Pprasitism: the® Comses olvvecses ov @ Knorr as paths ens Cyleledy NASARAWA STATE UNIVERSITY, KEFFT FACULTY OF NATURAL AND APPLIED SCIENCES DEPARTMENT OF BIOLOGICAL SCIENCE B.Sc PLANT SCIENCE AND BIOTECHNOLOGY FIRST SEMESTER EXAMINATION, 2017/2018 ACADEMIC SESSION «+ Course Code/ Title: B10 111/ General Biology 1 Credit Units 3 Time allowed: 2.5 hours ; Instruction: Answer four (4) questions with atleast one question trom each section SECTION 4 1@) Differentiate between Prokaryotie und Eukaryotic cells. --— Give 3 groups of organisms that belong to each type, : () List the external structures and composition of ba (® Prokaryotic cells (ii) Eukar you cells 2a) Give the differences between mitosis and meiosis. (b) Using a schematic diagram only, show the Stages of meiosis from parent cell daughter cells (n). _—— SECTIO' B i nomenclature Stem of naming organism Maue te s:gnificance of the bino: (b) Giv. rules for writing a scientific name. p (©) Classify a named dicotyledonous plant. id 4(a) Write short notes on the following characteristics of living things: (i) Respiration \ Gi) Homeestasis Gii) Reproduction iv) Invitability o Give three (3) differences between Tracheophytes and Thallophytes, SECTION C _— if > Discuss the factors that could limit the distribution of or 'ganisms in an ecosystem, 6ta) Define the term Beology. (b) various tools used in’ ecolo; ution of | ee . gy and, how they could be used to determine the diNASARAWA STATE UNIVERSITY, KEFFL = te A _ BACULTY OR NATURAL AND APPLIED SCINECES engender ens ogacn ‘FIRST SEMESTER EXAMINATION 2020/2021. SESSION if } ; 5 3 COURSE TITLE: GENDRAL HrOLooy: I. COURSE CODE: BIO Ut CREDIT UNIT:3.! . INSTRUCTION; ANSWER ALL QUESTIONS TIME ALLOWED: 1 HR 30 MINS: “Se Fal ja Department: « Matric, Number : Yi : 1, A type of relationship between organisms in which both benefit is called. 8) Parasitism bySymbiosis c) Commensalism d) None of thie above |. ee 2. One'of the following is not a characteristic of Jiving things v:, ~4) Assimilation b) Movement c),Grovith d) Feeding... + udp snal 7 3... Which of the following sentences best describes non-living Things?" rt # 8) Non-Living chings are-Matter . | sont Roches tt a b)Non-Living things are solids i) Miicvtt {7 92@)Non-Living thingsaare Liquids’ =i aws o> eT tee tee A 4) Non- Living things are Plants and ahimals 4, “Which of the following sentences best sdesoribes living things? © * 48) Matter b) solids c) Liquids d) Post and animals . 5. Which of the following sentences best describes a similarity between living and non-living 4) All living things are made up of cells. | ! “ ») All living things are made up of mar f All living things are made up of organelles | 8) Allving things are mage up of chlorophyll | 6.... Removal of Waste from the-body is called : 4) Excretion b) Digestion c) Respiration d) Assimilation 7. Tnergasein size and repair of damaged parts result i ‘ '8) Growth b). Movement c) Assimilation d) Respiration! “ qt * 8... An.orgenization of more than one individual is called 2 i Sa 1 2) Aipopulation b) A community 6) A’plant d) An animal 9.“ A biplogical description of an ecosystém considers all the following statements except > ~ {2} Allthe living things in an areab) The physical environment ¢) the imterrelated flow'6f enerayd) Thie complex biosphere ofthe ear ~“aplanet 1? “ 10, One.of the following isnot «characteristic of Eukaryotic cells 4#) They have a trie nucleus b) The mucleus houses DNA. ¢) The nucleus is contained within a membrane d) They have no.tue nuc 1. One of the following isa characteristic of Prokaryotic cells. = 42) They have 4 true nucleus 6) The nucleus houses DNA. ¢) They have no true nucleus 4) The nucleus is contained within a membran, 12°) “All the living matter of plant céll is called al. 7" 8) Protoplasm b) Plasma membrane c) Cellulose cell wall d) Nucleus j.13:. The partofthe plant cell which distiiguishes itfrom the animal cell ig ">" <:" |. 8) Cell Wall’b) Cell Membrané'¢) Vacuole d) Cytoplasm 4 The lowest and most strict level of clasifiction of living things is 8) Species b) Genus ¢) Order d) Family * “ 1S... One ofthe following is nota type of classification of plants based on habitat:| or 2) Mesophytes b) Hydrophytes c) Xerophytes d) Biosphere i 16... Plants which grow in desert areas are called . ¥ eee i 8) Mesophytes b) Hydraphytes c) Xerophytes d) Halophytes - ihe : h7:.] “Platt which pow means caret i { : 4) Mesophyte b) Hydrophytes«) Xetophives ¢) Halophyaes oo ieak nat 18, The process by which living things exchange gases with theif environment is aed 4) Assimilation b) Respiration ¢) Digestion d) Exerstion 19. The biosphere consists ofthe following except : iene os (@) Water (b) Land (6) Air (6) Food “ 20. Which of the following is NOT an example of hydrosphere? (See (b)Lake (c)Desert (8) River : 21, Atypical example of a Lithospher is () Lake (b) River (c) Ocean (4) Desert{ i 1 122 one orthe folloiingiswbiotio feetor forthe growth ear icose (@) Humidity (0) Pressure (c) Seaweeds (4) Microscopes" ~ 23: - Which of the following is NOT a way pf interaction of organisms in a community? (4) Saprophiytism (b) Probosis(c) Symbiosis (2) Commensalis i 24, Which ofthe following bestdefined mutuslism? * 5 te ' (@): An association of two organisms in fish one ape andthe eke peat { (@) Anassociaton:of so organisms in which each do not benefits. | (© An association of two organisms in which oné isthe host and the other a paresite i (@ An association of two organisms in which each ofthe species benefits b 25, One ofthe adaptations of preys in ecoinmunity against thei predators is by i (@) Fighting the predator (6)Camouflaging ()Possession of canine teeth (@)Possessin of claws. 26, The assoziation betveen two organisms in which one benefits, andthe other harmed stalled” © { Saprophytism (b) Commensalisry(o)Parastsm (2)Mutualigm «=r = +f 2. Example of animal parasites that lives on or outside thelr host is } 0) Plasmostium ()Sehistosoma (¢)Tlek(6) Tapeworm 28... ‘An association of two dissimilar species of organisms in which one member benefits tut th her remiss iniferentis (6) Compettio ‘(e)Mutualism (c) Commensalism (2) Parsiism 29, Te folowing are primary proses excep) Ale (8) Ditoms () Grasses (gh 30, |The following are secondary consumers except: ‘(@) Lion (b) Fungi (©) Fish () Lizard : et {Use this food chain to answer quests (3-15 ‘Grass-—+. Grasshopper *Toad ~»Snake Hawk 31. [Which ofthese organisms is the primary consumer? |. Grass:(o) Grasshopper (c) Toad (4) Hawk i ( 32, | Which of the following group of organisms are consumers? | "(@)/Grass, Toad, Snake and Hawk (6) Grass, Toad, Snake and Hawk : : {(@Gresshopper, Toad, Snake and Hawk (e) Gress, Grasshopper, Snake end Toad ‘ 133. The autotoph inthis food chain is: (a) Toad (b) Hawk (c) eas (8) Snake. “(@_ Isa bomplicated food chain in a habitat : “(e)_ Each organs nshe habitat fends on mre than one see of organs, i “(Gf Gross planis ine habitat gre alwaya the prodyears 2) (© Itis elinear feeding relationship among organisms ina habits. | 35, The: invere feeding reltonship berween the number and size of oxganipms:at diferent trophic levels of (@Pyramid of energy (6) Pyramid of numbers (c)Energy levels(d)Trophic leyel 36.. All members ofthe kingdom Anitnalia are multieellula. True or alse?” | eee 37. Annals ike Annlids, Arthropods eo, where the body canbe divided into ientcl lef and right halves in only one plane exhibit —~ 1¢ food chain is ‘calle 38, Aninuls in which he cel ar ranged int embryonic halves an extemal etoderm and an tral endoderm ae clled * animal * 39. ‘Those animals like Chordates vie te developing emiryo as third erp layer meso in beeen he ede & endoderm 40; Animas ike Annelgs, Molisis, Aropods, Chordtes et which posses coelom are called —~ : is the body cavity ined by the mesodefm 42,, In earthworms, the body is divided into segments external & internal.in a ptter called 43. ‘The phylum Porfera are commonly called 4/44, RouneSvorms & pinworms are examples of the phylutenen=-—— : 45. Animal cells ae eukaryotic cells wth a membrane bound nucleus & with DNA inside the a thin semipermeable layer of protein & fats Surrounding the cell 47. A jlly-like material which contains all the cell organelles enclosed within the cell is known as o~-vr are the powerhouse of the call as they play an important role in releasing ener 48, ‘Loukootes, eryooyts Be ples are example of hela vse in biology isthe basic merabrane bound units that contains the fndamental molecules of life of wh all living things are composed, ‘i