Cambridge International Examinations Cambridge International General Certificate of Secondary Education

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1 ambridge International Examinations ambridge International General ertificate of Secondary Education * * IOLOGY 0610/23 Paper 2 Multiple hoice (Extended) October/November 2016 dditional Materials: RE THESE INSTRUTIONS FIRST Multiple hoice nswer Sheet Soft clean eraser Soft pencil (type or H is recommended) 45 minutes Write in soft pencil. o not use staples, paper clips, glue or correction fluid. Write your name, entre number and candidate number on the nswer Sheet in the spaces provided unless this has been done for you. O NOT WRITE IN NY ROES. There are forty questions on this paper. nswer all questions. For each question there are four possible answers,, and. hoose the one you consider correct and record your choice in soft pencil on the separate nswer Sheet. Read the instructions on the nswer Sheet very carefully. Each correct answer will score one mark. mark will not be deducted for a wrong answer. ny rough working should be done in this booklet. Electronic calculators may be used. The syllabus is approved for use in England, Wales and Northern Ireland as a ambridge International Level 1/Level 2 ertificate. This document consists of 15 printed pages and 1 blank page. I16 11_0610_23/4RP ULES 2016 [Turn over

2 1 reathing out combines which two characteristics of living organisms? 2 excretion and movement excretion and respiration movement and sensitivity sensitivity and respiration 2 Scientists discover a new species of animal. It has a segmented body with two pairs of legs on each segment. To which group of animals does this new species belong? arachnids crustaceans insects myriapods 3 The diagram shows an insect. Use the key to identify the insect. 1 wings present... go to 2 wings absent... 2 two pairs of wings... go to 3 one pair of wings... 3 wings with circular markings... wings without circular markings... 4 Which feature shows that a cell is a plant cell? cell membrane cell wall cytoplasm nucleus ULES /23/O/N/16

5 The diagram shows an image of a chloroplast. The image is 5 cm long. 3 The actual length of the chloroplast is 5 µm. What is the magnification of the image?

3 5 The diagram shows an image of a chloroplast. The image is 5 cm long. 3 The actual length of the chloroplast is 5 µm. What is the magnification of the image? The diagram shows a plant cell which has lost water to its surroundings by osmosis. Which part is the partially permeable membrane? 7 What describes active transport? energy required particles move against concentration gradient ULES /23/O/N/16 [Turn over

4 8 The graph shows how the activity of an enzyme varies with temperature. 4 rate of enzyme activity temperature / What is the best or optimum temperature for this enzyme and at what temperature is the enzyme not working? temperature / best not working How does a plant use the sugar that it makes? stored as starch used for photosynthesis used for respiration used to make cellulose ULES /23/O/N/16

5 10 The diagram shows a leaf as seen in cross-section under the microscope What are tissues 1, 2 and 3? epidermis palisade mesophyll spongy mesophyll epidermis spongy mesophyll palisade mesophyll palisade mesophyll epidermis spongy mesophyll spongy mesophyll palisade mesophyll epidermis 11 The roots of plants take up nitrates from the soil. What are the nitrates used to make? fat glucose protein starch ULES /23/O/N/16 [Turn over

6 12 Which disease do children suffer from if they do not get enough iron from their diet? 6 anaemia kwashiorkor marasmus rickets 13 What is the correct order of the processes that take place in the alimentary canal? absorption, digestion, ingestion, egestion digestion, ingestion, egestion, absorption egestion, digestion, absorption, ingestion ingestion, digestion, absorption, egestion 14 The diagram shows part of the human alimentary canal. Which organ produces hydrochloric acid? ULES /23/O/N/16

7 7 15 The diagram shows the stem of a plant. strip of the outer tissue including the phloem has been removed. xylem phloem How is transport in the plant affected? mino acids and sugar cannot pass to the roots. issolved salts cannot pass to the leaves. Water cannot pass to the leaves. Water cannot pass to the roots. 16 Which changes in atmospheric conditions can cause a plant to wilt? humidity temperature decrease decrease decrease increase increase decrease increase increase 17 Which substance is moved by translocation in a flowering plant? amino acid cellulose fat starch 18 What is a double circulation? lood circulates through arteries and veins. lood circulates through two hearts. lood flows through the heart twice for each circulation. lood flows twice around the body before going to the lungs. ULES /23/O/N/16 [Turn over

8 19 The graph shows the thickness of the muscular wall in each of the four chambers of the heart. Which chamber is the right ventricle? 8 thickness of muscular wall heart chamber 20 The diagram shows human blood cells, as seen under a microscope. X What is the function of cell X? to carry glucose to carry oxygen to defend against disease to make the blood clot 21 What are disease-causing organisms? antibodies pathogens phagocytes vaccines ULES /23/O/N/16

9 9 22 Which row describes active immunity? depends on phagocytes memory cells are produced 23 fter a race, athletes experience oxygen debt. The diagram shows how the oxygen debt is removed. lactic acid forms in the muscles X lactic acid moves in the blood to the liver deep breathing continues, supplying extra oxygen What happens at X? aerobic respiration of glucose aerobic respiration of lactic acid anaerobic respiration of glucose anaerobic respiration of lactic acid 24 What is the equation for aerobic respiration in plants? 6 H 12 O 6 + 6O 2 6O 2 + 6H 2 O 6 H 12 O H 6 O 3 6O 2 + 6H 2 O 6 H 12 O 6 + 6O 2 6 H 12 O H 5 OH + 2O 2 ULES /23/O/N/16 [Turn over

10 10 25 The diagram shows a vertical section through the front part of an eye when viewing a near object. R S What describes structures R and S? R under tension S contracted 26 When the blood glucose concentration is low, which hormone is released and which organ releases it? hormone organ glucagon liver glucagon pancreas insulin liver insulin pancreas ULES /23/O/N/16

11 11 27 The diagram shows seedlings in two experiments on the tropic response of seedlings to gravity and light. Experiment 1 to show the effect of gravity shoot shoot start of experiment in the dark 3 days later Experiment 2 to show the effect of light shoot shoot light from one side start of experiment 3 days later How have the seedlings responded? to gravity to light key = tropic response shown = no tropic response shown 28 When does fertilisation occur in humans? when an egg is released when implantation occurs when sperm and egg nuclei fuse when sperm are released ULES /23/O/N/16 [Turn over

12 12 29 The diagram shows the structure of a sperm cell. Which part is the flagellum? 30 The graph shows a hormone that is involved in controlling the menstrual cycle. hormone concentration What is the hormone? time / days FSH LH oestrogen progesterone 31 What happens in mitosis? genetically identical cells produced chromosome number is halved ULES /23/O/N/16

13 32 Ernst and my have four children of different blood groups, as shown. 13 Ernst my Jan group Jack group ara group O Kris group What are the genotypes of Ernst and my? I I and I I o I I and I o I o I I o and I I I I o and I I o 33 What is an adaptive feature of xerophytes? do not have root hair cells leaves have large surface area stomata are in pits thin cuticles 34 What are possible positions in a food chain of a carnivore and a herbivore? carnivore herbivore primary consumer producer secondary consumer primary consumer secondary consumer tertiary consumer tertiary consumer secondary consumer ULES /23/O/N/16 [Turn over

14 35 The diagram shows part of the nitrogen cycle. S 14 nitrogen in air nitrogen compounds in soil nitrogen compounds in plants nitrogen compounds in animals What is process S? denitrification nitrification nitrogen fixation nutrition 36 The graph shows the growth of a yeast population. biomass time / days When was the rate at which cells were dying equal to the rate at which new cells were being formed? day 3 day 5 day 9 day 11 ULES /23/O/N/16

15 37 Which structures, found in bacteria, make them useful in genetic engineering? 15 cell walls membranes plasmids mitochondria 38 Why is yeast used in bread-making? erobic respiration produces alcohol. erobic respiration produces lactic acid. naerobic respiration produces alcohol. naerobic respiration produces carbon dioxide. 39 n advantage of some genetically modified crop plants is that they will not be affected by herbicides. need carbon dioxide. need magnesium ions. need water. 40 Fertiliser leaks into a river resulting in eutrophication. What is the correct order of events leading to the death of animals in the river? increased aerobic respiration by decomposers reduction in dissolved oxygen increased growth of plants increased decomposition of dead plants increased decomposition of dead plants increased growth of plants reduction in dissolved oxygen increased aerobic respiration by decomposers increased growth of plants increased decomposition of dead plants increased aerobic respiration by decomposers reduction in dissolved oxygen reduction in dissolved oxygen increased growth of plants increased aerobic respiration by decomposers increased decomposition of dead plants ULES /23/O/N/16

16 16 LNK PGE Permission to reproduce items where third-party owned material protected by copyright is included has been sought and cleared where possible. Every reasonable effort has been made by the publisher (ULES) to trace copyright holders, but if any items requiring clearance have unwittingly been included, the publisher will be pleased to make amends at the earliest possible opportunity. To avoid the issue of disclosure of answer-related information to candidates, all copyright acknowledgements are reproduced online in the ambridge International Examinations opyright cknowledgements ooklet. This is produced for each series of examinations and is freely available to download at after the live examination series. ambridge International Examinations is part of the ambridge ssessment Group. ambridge ssessment is the brand name of University of ambridge Local Examinations Syndicate (ULES), which is itself a department of the University of ambridge. ULES /23/O/N/16

Cambridge International Examinations Cambridge International General Certificate of Secondary Education

Cambridge International Examinations Cambridge International General Certificate of Secondary Education *3193869340* ambridge International Examinations ambridge International General ertificate of Secondary Education IOLOGY 0610/21 Paper 2 Multiple hoice (Extended) October/November 2016 dditional Materials: