Biology 0610/11 May/June 2019: question paper and mark scheme

Question

The diagram shows a leaf on a plant. Sun simple sugars made in the leaf water from carbon dioxide the soil from the air Which characteristic of life is represented by this diagram? A excretion B nutrition C respiration D sensitivity

Question

The diagram shows how Homo sapiens (modern people) could have evolved from earlier ancestors. Homo sapiens (modern people) Homo heidelbergensis Homo erectus Homo habilis Which statement about modern people and their ancestors is correct? A They are in the same species and the same genus. B They are in the same species but not the same genus. C They are in the same genus but not the same species. D They are neither the same species nor the same genus.

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The diagram shows an insect. What is the insect? 1 insect has no wings …… go to 2 insect has wings …… go to 3 2 legs longer than, or as long as the body …… A legs shorter than the body …… B 3 abdomen long and thin …… C abdomen shorter and wider …… D

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Which features are possessed by all plant cells? a cell wall chloroplasts A key B = present C = absent D

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Which organ is part of the digestive system? A colon B larynx C trachea D ureter

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The diagram shows a test-tube containing clear jelly. A drop of blue ink is injected into the middle of the jelly. clear jelly drop of blue ink The blue colour of the ink spreads throughout the jelly. By which process does the blue ink spread through the jelly? A active transport B catalysis C diffusion D osmosis

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The apparatus shown was set up. glass tube sugar solution pure water and blue ink partially permeable membrane Some hours later, the water in the beaker had turned blue, and the liquid in the glass tube had moved upwards. Which processes caused these changes? liquid in glass water turned tube moved blue upwards A osmosis diffusion B active transport osmosis C diffusion active transport D diffusion osmosis

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Four solutions were tested to see whether they contained protein, starch or glucose. The colours of the solutions after the tests are recorded in the table. Which solution contained protein and glucose but not starch? biuret test iodine test Benedict’s test A blue brown orange B blue blue-black blue C purple brown orange D purple blue-black blue

Question

Small molecules are used as the basic units in the synthesis of large food molecules. Which statement is correct? A Amino acids are basic units of carbohydrates. B Fatty acids are basic units of glycogen. C Glycerol is a basic unit of oils. D Simple sugar is a basic unit of protein.

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Which graph shows the effect of pH on enzyme activity? A B enzyme enzyme activity activity 1 7 14 1 7 14 pH pH C D enzyme enzyme activity activity 1 7 14 1 7 14 pH pH

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The diagram shows an experiment to investigate the balance between respiration and photosynthesis. In which tube are photosynthesis and respiration taking place at the same time? A B C D black water polythene to keep snail out light light light light pond weed

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The diagram shows a cross-section of a leaf as seen under a microscope. Which structure is a palisade mesophyll cell? A B C D

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The chart is used to find a person’s recommended mass. 1.85 low ideal slightly moderately mass mass obese obese 1.80 1.75 1.70 height / m 1.65 1.60 1.55 1.50 30 40 50 60 70 80 90 100 110 120 130 140 150 160 mass / kg For the data provided about body mass and height, which person would benefit most from the introduction of a calorie-controlled diet and regular exercise? body mass height / kg /m A 40 1.55 B 50 1.75 C 70 1.80 D 90 1.75

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The following statements are about enzymes. 1 enzymes are catalysts 2 enzyme are proteins 3 enzymes are used up during chemical reactions Which statements are correct? A 1, 2 and 3 B 1 and 2 only C 1 and 3 only D 2 and 3 only

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The diagram shows a human tooth with an area of decay. area of decay What is likely to have caused the decay? A acids released by bacteria B digestion of the tooth by bacteria C excess of fat in the food D lack of fibre in the food

Question

A celery stalk was placed into a beaker of blue dye. When the dye reached the leaves, the stalk was taken out and a section was cut, as shown in the diagram. celery stalk cut blue dye Which diagram shows the appearance of the cut end of the stalk? A B C D blue dye blue dye blue dye

Question

The table shows the rate of water flow through a tree over a 12 hour period. rate of flow time of day / cm per hour 17:00 100 19:00 120 11:00 140 13:00 250 15:00 300 17:00 260 19:00 180 What conclusion can be drawn from the table? A Between 7:00 and 17:00 hours the rate of flow continuously increases. B The greatest increase in rate of flow in a two-hour period is between 11:00 and 13:00 hours. C Water does not flow up through a tree at night. D Water flow is affected by humidity.

Question

The diagram shows a section of a human vein. X What is the function of the part labelled X? A to make sure the blood flows to the heart B to make sure the blood flows to the kidneys C to make sure the blood flows to the brain D to make sure the blood flows to the lungs

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The diagram shows cross-sections through three types of blood vessel, not drawn to the same scale. V W X Which section is from a vein and which is from a capillary? vein capillary A V W B W V C W X D X W

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The diagram shows one way the body defends itself against pathogens. bacteria white blood cell What is the name of this defence mechanism? A antibody production B egestion C phagocytosis D vaccination

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What is the approximate percentage of oxygen in expired air? A 0.04% B 4% C 16% D 21%

Question

Potted plants are left for a week in a tank of water as shown. tank soil water permeable plant pot Why do the plants die? A The roots do not have enough oxygen. B The roots do not have enough water. C The roots have too much oxygen. D The roots have too much carbon dioxide.

Question

The diagram shows two experiments investigating gas exchange in small aerobic crustaceans. Soda lime absorbs carbon dioxide. P Q coloured coloured liquid marker liquid marker small aerobic crustaceans wire gauze soda lime glass beads instead of soda lime Which way does the liquid marker move? P Q A left right B left stays still C right left D right stays still

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Yeast is placed inside a container full of a glucose solution with no air. Which word equation summarises the process that takes place inside the container? A glucose → ethanol + carbon dioxide B glucose → lactic acid C glucose + oxygen → carbon dioxide + water D glucose + oxygen → ethanol

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Which substances are excreted by humans? carbon urea urine dioxide A key B = involved C = not involved D

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The diagram shows a simple reflex arc. Which labelled part is the sensory neurone? C B A D

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Some structures in the eye are listed. 1 cornea 2 iris 3 lens 4 retina Which structures contain light receptors? A 1, 2 and 3 B 2, 3 and 4 C 2 and 4 only D 4 only

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Which type of drug is used to treat bacterial infection? A antibody B antibiotic C depressant D vaccine

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The diagram shows a section of an insect-pollinated flower. Which structure is the anther? C B D A

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In humans, what is an example of a secondary sexual characteristic in both males and females? A hair grows on face B hips widen C fat is deposited on hips and thighs D sexual organs grow

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Which contraceptive method could provide protection from sexually transmitted infections? A condom B diaphragm C hormone implant D vasectomy

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Which human characteristics are inherited? earlobe eye skin language shape colour colour A key B = inherited C = not inherited D

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A rabbit has 44 chromosomes in each of its body cells. Which row correctly describes the gamete cells? number of gametes compared chromosomes to body cells A 22 genetically identical B 22 genetically different C 44 genetically identical D 44 genetically different

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Which definition of continuous variation is correct? A variation that results in a limited number of phenotypes between two extremes B variation that results in a limited number of phenotypes with no intermediates C variation that results in a range of phenotypes between two extremes D variation that results in a range of phenotypes with no intermediates

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When is evolution by natural selection most likely to occur? A when there is a stable population of predators B when there is a stable environment C when there is less variation in the population D when there is more variation in the population

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What process uses the principal source of energy input to biological systems? A ingestion B decomposition C photosynthesis D respiration

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The diagram shows an aquatic food web. blue whale killer whale seagull seal fish squid zooplankton krill crab phytoplankton seaweed Which statement is correct? A There are two producers and three herbivores. B There are two primary consumers and two secondary consumers. C There are three producers and two primary consumers. D There are two herbivores and two tertiary consumers.

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Why are bacteria useful in biotechnology and genetic engineering? A They can reproduce rapidly. B They live in soil. C They may be pathogens. D They need complex nutrients.

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What is a description of genetic engineering? A cross breeding individuals with different important characteristics B cross breeding individuals with recessive alleles C inserting a gene from one organism into another D selecting random mutations to produce new varieties

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Large areas of tropical forests have been cleared to grow monocultures of palm oil plants. Which effect will this have on the ecosystem? A The use of fossil fuels in the area will decrease. B The use of pesticides in the area will decrease. C The variety of species in the area will decrease. D The variety of species in the area will increase.