i IE, .: a tree. When the learner A learner was walking along a road when he saw an object under a tree. » ouched the object, changed colour, rolied over and divided Into two. Which characteristle of living organisms has the object shown? A Excretion, movement, nutrition B Growth, reproduction, sensitivity C = Movement, reproduction, respiration D_ Movement, reproduction, sensitivity Which of the following correcty shows the path fotowed by a light beam from a mirror to a viewer of a specimen under a microscope? A Eye piece ~» Specimen -» Objective lens -» Barrel . Specimen -» Barrel -» Objective lens -» Eye piece 2 o Specimen -» Objective lens -» Barrel -» Eye piece 3 Aleamer investigated osmosis 'm Potato tissues. He set up the apparatus as shown. Dotato cylinder a cylinder P = @ distilled ‘water At the beginning, the potato cylinders were exactly balanced. He immersed the cylinders after which the cylinders were lifted out of the liquids. Cylinder: into the liquids for 4 hours, P was now heavier than cylinder Q. Which statement explains what happened? Water moved ... A into cylinder P. B into cylinders P and Q. C into cylinder Q. D out of cylinders P and Q. 4 Two samples of a human enzyme were used in an experiment. Before they were used, sample X was heated to 80°C and cooled to 37°C. and sample Y was cooled to 0°C and then heated to 37°C. How did this affect the enzyme activity? A Sample X and sample ¥ were no longer active, B_ Sample X and sample Y were equally active, € Sample X was more active than sample Y. D Sample Y was active while sample X was inactive,Page 3 of 11 The following table shows the percentage of carbohydrates, fats and proteins in four ‘samples of food. Which food sample contains the mast energy? Carbohydrate % | Fat% | Protein % A 5 33 04 B 54 36 08 c 36 26 19 o 30 22 18 The following symptoms can be caused by a dietary deficiency. ~ Bone pain ~ Dental problems ~ Fragile bones ~ Skeletal deformities ‘Which nutrient deficiency is most likely to cause these symptoms? A Iron B Protein vitamin D Vitamin D Which of the following groups of people need more carbohydrates in their diet? A Aged and youth B Lactating woman and sick person C Pregnant woman and sportsman D Sick person and pre-school age ‘plant had the following signs: = poor root growth ~ small reproductive organs ‘Which nutrient was the plant lacking? ‘A Boron B Copper © Magnesium D Phosphorus ‘The diagram shows the internal structure of a dicotyledonous leaf, Which part transports mineral salts and water?Page 4 of 11 Which of the folowing best describes saprophytic nutrition? ‘A Feeding on dead or decaying matter. 10 a 12 13 14 B Feeding on ving organisms. C Involves intraceliuiar digestion, D Manufacturing of food nutrients. ‘The diagram shows @ tooth with signs of decay. ‘What has caused the tooth to decay? A Acid B Saliva © Sugar D Toothpaste ‘The table shows some of the changes that occur during breathing. From contracted | From relaxed to relaxed to contracted [Diaphragm Pp x External intercostal muscles Q Y Internal intercostal muscles R z Which changes occur to cause inspiration? AP, Qandz BX QandR Cc Xx,YandR D X,Yandz Which products of anaerobic respiration are important for making beer and bread?“ \. Beer Bread * A [ Carbon dioxide ‘Simple sugar B | Ethanot Carbon dioxide c [lactic acd Ethanol D [Simple sugar Lactic acid In order to reduce the effects of COVID-19, people are advised to get vaccinated. What type of immunity results from these vaccinations? ‘A Artificial active immunity B Artificial passive immunity C Natural active immunity D Natural passive immunityPage 5 of 14 45, The diagram shows a cross section of a dicot plant stem and adicat plant root, Which labelled regions contain xylem vessels? A PandR B Pands C QandR - D QandsS 16 The following is a random lst of processes necessary for a wound to heal. 1. The blood clot forms a seal 2, Fibrin traps red blood cells 3. Fibrinogen is converted to fibrin 4. New tissues form In which correct order do these processes take place for the wound to heal? First ——— Last A iyvTzy74y3 B 2,43 ]1 c s [7/14 D 4 3 1 2 17 The diagram shows some body cells and a nearby capillary, cells tissue fluid fluid fitered out of capillary ‘blood flow enters capillary Which substances must pass in the direction of the arrow X for the cells to respire aerobically? ‘A Carbon dioxide and water B Glucose and oxygen C Salts and glucose D Water and saltsPage 6 of 14 L218 Thediagram shows @ nephron, com> 19° What is true for @ runner atthe end ofa race in hat weather? A Sweating and vasoconstriction B Sweating and vasodilation © Vasoconstriction only D _Vasodilation only O\, 20. Which of the folowing hormones stimulates growth by stimulating synthesis of ~ macromolecules such as carbohydrates, lipids and proteins? A Antidiuretic hormone B Growth hormone C Thyroid stimulating hormone D Thyroxine 21° Which of the following correctly shows examples and types of reflex actions? ‘Spinal reflex Cranial reflex Conditioned reflex | A Blinking Knee jerk Salivating B Coughing Binking Knee jerk c Knee jerk Blinking Salivating D Salvating [Coughing BlinkingPage 7 of 14 32 The diagram shows 9 human ear, Which of the labelled parts is involved in balance? (23 The diagram shows the elbow joint in two different positions. luscle ¥ uscle ¥ Muscle X. — ‘Muscle X- What happens to the muscles X and Y to change the position of the elbow joint as shown? Muscle X Muscle ¥ A Contracts Contracts: B | Contracts Relaxes c Relaxes Contracts D | Relaxes Relaxes, 24 Which of the following correctly distinguishes a taxic response from a tropic response? A taxic response ... A involves hormones. B isa growth movement. Cis a movement of whole organism. D__isirreversible. 25 Which of the following is the correct order of processes that occur during growth? ‘A Call division, cell elongation, cell specialisation B_ Cell division, cell specialisation, cell elongation C Cell elongation, cell division, cell specialisation D Cell elongation, cell specialisation, cell divisionPage 8 of 11 27 29 The diagram shows some : soe seedlings. +t Which seediing(s) shows) epigeal germination? A tand3 B tony © 2only D 2and3 ‘The diagram shows asexual reproduction in a unicellular organism. 6 What type of asexual reproduction is shown? A Binary fission B Budding € Fragmentation D Spore formation The diagram shows a ‘strawberry plant. Which labelled part of the plant can only be produced by asexual reproduction? Which processes occur in the carpel of a flower? A Attracting insects and pollination B_ Fertilisation and producing pollen C Pollination and fruit formation D Releasing pollen and fertilisation31 Page 9 of it The folowing processes occur during reprediction In fowering pants, 1, Fertilisation 2. Growth of pollen tubes . 3. Pollination 4. Seed formation In which order do these processes Occur? A 1445253 Bo 241534 C 3724154 D 4434132 AA frog becomes an adult when ... ‘A thas all four legs and its tal disappears. B thas all four legs and a tail. © ithas hind legs. D its tail gets smaller, ‘The diagrams show four methods of birth control. YQ . ‘Which one is placed in the uterus? ‘What makes tongue roiling an example of discontinuous variation? ‘A Aperson can either roll a tongue or cannot. B_ Aperson can roll a tongue only when he/she is young. There are many different types of tongue rollers, D Tongue rolling has to be learnt. The diagram shows one of the stages in mitosis, Which of the following stages of mitosis is shown in the diagram? A Anaphase B Metaphase C — Prophase D TelophasePage 10 0f 11 35 Towhich phylum do algae belong? A Bryophyta B Chlorophyta © Peridophyta D Spermatophyta ‘soils. of two types of 36 ‘The diagrams show an experiment set up to co peroety in ‘After 10 minutes the resuits showed that different volumes of water were collected in the ‘wo measuring cylinders. The conclusion was that ... A soil A had low porosity because it was clay soll. B soll A had low porosity because It was sand sol. c etre cant tone soll B had high porosity because it was sand sol ponent? 37 Wc o the folowing sts of comgonens ofthe easy forms te abiotic com A Air, fish, green plants B Grass, water lly, water Water iy, soil, fish D Water, suniight, air 38 The diagram shows an ecological pyramid. Alhawiks B[ snakes cl rabbis] foes] Which of the levels shows primary consumers?Page 11 of 11 39 The diagram shows part of the Nitrogen Cycte, [etane protein [Animal protein] f i Nitrogen Dead matter > f Nitrate Ammonia Which stage depends on nitrifying bacteria? 40 An adaptive feature of an organism is defined as one that helps the organism to A change. B disperse to new habitats, c grow, D survive and reproduce.