International General Certificate of Secondary Education CAMBRIDGE INTERNATIONAL EXAMINATIONS

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1 International General ertificate of Secondary Education MRIGE INTERNTIONL EXMINTIONS IOLOGY 0610/1 PPER 1 Multiple hoice MY/JUNE SESSION minutes dditional materials: Multiple hoice answer sheet Soft clean eraser Soft pencil (type or H is recommended) TIME 45 minutes INSTRUTIONS TO NITES o not open this booklet until you are told to do so. Write your name, entre number and candidate number on the answer sheet in the spaces provided unless this has already been done for you. There are forty questions in 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 answer sheet. Read very carefully the instructions on the answer sheet. INFORMTION FOR NITES 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. This question paper consists of 16 printed pages. SP (SL/J) S21866/4 IE 2002 [Turn over

2 1 Which activities are carried out by all living things? 2 excreting, growing, reproducing, respiring excreting, moving, reproducing, sleeping growing, moving, respiring, thinking growing, respiring, swimming, thinking 2 n organism has a segmented body, pairs of jointed legs and a hard exoskeleton (outer covering). To which group does it belong? annelids arthropods molluscs nematodes 3 Use the key to identify this animal. 1 legs present... go to 2 legs absent... 2 five pairs of legs... four pairs of legs... go to 3 3 two body sections... three body sections...

3 4 Which parts are found both in plant and in animal cells? 3 cell membrane, chloroplast, vacuole cell membrane, cytoplasm, nucleus cell wall, chloroplast, cytoplasm cell wall, nucleus, vacuole 5 The diagram shows some internal parts of the human body. What do these parts form? an organ an organism an organ system a tissue [Turn over

4 6 The diagram shows four different cells (not drawn to scale) blood cell sperm cell root hair cell muscle cell Which cells provide a large surface area for absorption? 1 and 2 1 and 3 2 and 4 3 and 4 7 The diagram shows a plant cell before and after being placed in a sugar solution for ten minutes. What describes the concentration of the sugar solution compared with that of the cell sap, and the type of molecules moving into the cell? concentration of sugar solution compared with cell sap molecules moving into the cell higher sugar higher water lower sugar lower water 8 Why are all gaseous exchange surfaces moist? oncentration gradients occur only in liquids. Gases dissolve before diffusing across the surfaces. Gases move across the surfaces by osmosis. Molecules cannot diffuse in air.

5 9 The table shows two properties of four different chemicals. Which chemical is an enzyme? 5 chemical destroyed by molecular structure temperatures includes nitrogen above 65 º key = true = false 10 The apparatus shown in the diagram was used for an experiment on starch digestion. Which tube would contain most maltose after 20 minutes? tube tube tube tube starch solution and amylase starch solution water bath at 15 water bath at 37 starch solution and amylase 11 The equation represents a process that occurs in plants. What is the name of this process? carbon dioxide + water glucose + oxygen evaporation photosynthesis respiration transpiration [Turn over

6 6 12 What is carried by the phloem? chlorophyll mineral salts starch sugar 13 How is the rate of transpiration affected by increasing humidity and by increasing light intensity? increasing increasing humidity light intensity decreases decreases decreases increases increases decreases increases increases 14 The table shows the results of food tests carried out on a fruit. test enedict s biuret ethanol iodine result positive positive negative negative What did the fruit contain? fat and reducing sugar fat and starch protein and reducing sugar protein and starch 15 Why is iron needed by the body? to form strong bones to make haemoglobin to provide energy to repair cells

7 16 Four foods were analysed to discover their chemical structure. Which food is an oil? 7 food contains the elements carbon, hydrogen and oxygen contains the elements carbon, hydrogen, oxygen and nitrogen made up of amino acids made up of fatty acids and glycerol storage compound in plants storage compound in animals key = present = absent 17 What is the most likely cause of a heart attack? blocked coronary arteries diet lacking in vitamins and infection by microorganisms regular exercise 18 The graph shows a person s heart rate before, during and after a period of exercise. t which point did the period of exercise stop? heart rate time [Turn over

8 8 19 Why is yeast used in breadmaking? to produce alcohol to produce carbon dioxide to use up oxygen to use up sugar 20 The graph shows the rate and depth of breathing in a person before exercise. 2.5 volume of air in lungs during breathing / dm time / s Which graph shows the rate and depth of breathing of the same person immediately after a period of exercise? volume of air in lungs during breathing / dm volume of air in lungs during breathing / dm time / s time / s volume of air in lungs during breathing / dm volume of air in lungs during breathing / dm time / s time / s

9 9 21 Which of these describes excretion? getting rid of undigested food releasing energy from food removing waste products of metabolism transporting carbon dioxide in the blood 22 What happens to hormones and to urea in the liver? hormones urea broken down broken down formed broken down broken down formed formed formed 23 fter a meal, the concentration of blood glucose increases. Which organ removes this blood glucose and converts it into a storage compound? kidney liver pancreas rectum 24 The diagram shows shoots of maize seedlings. Which shoot shows negative geotropism? light light gravity gravity [Turn over

10 10 25 The diagram shows the male reproductive system. W X Y Z Where do sperm production, seminal fluid production and semen release occur? sperm production seminal fluid production semen release W Y X X Z Y Y W Z Z X W

11 11 26 The diagram shows two flowers from the same plant How can pollination occur between these two flowers? pollen transferred from pollen transferred to The diagram shows changes in the thickness of the uterus lining of a woman. thickness of uterus lining X X X time / weeks What happens each time at X? fertilisation implantation menstruation ovulation [Turn over

12 12 28 y definition, what increases during growth? complexity dry mass height number of parts 29 The diagram shows the early growth of a green plant. What is occurring? mitosis development key = occurs = does not occur

13 13 30 In the life cycle of a mammal, what describes the eggs or sperms and the cells of the embryo? eggs or sperms cells of the embryo diploid diploid diploid haploid haploid diploid haploid haploid 31 What is always found in female gametes and may be found in male gametes? one X chromosome one Y chromosome two X chromosomes one X chromosome and one Y chromosome 32 In a species of plant, the allele for red flowers is dominant to the allele for white flowers. Which offspring could result from a cross between a heterozygous red-flowered plant and a whiteflowered plant? heterozygous red and homozygous red heterozygous red and homozygous white heterozygous red only homozygous white only 33 The diagram represents a pyramid of biomass within an ecosystem. carnivores herbivores producers Which shows the direction of energy flow through the pyramid? [Turn over

14 14 34 The diagram shows a food chain. producers herbivores carnivores top carnivores trophic level: If the carnivores in trophic level 3 suddenly die out as a result of disease, in which trophic levels will the number of organisms be likely to decrease? 1 and 2 1 and 4 2 only 2 and 4 35 Which process is not part of the carbon cycle? combustion photosynthesis respiration transpiration 36 The diagram shows the natural cycle of a substance. What is the substance? carbon dioxide nitrogen oxygen water

15 15 37 The graph shows the birth rate in a country per thousand of population year uring which year is the population likely to be increasing at its lowest rate? Why is it that pesticides sprayed in low concentrations may increase the yield of a crop, but may also be harmful to wildlife? Pesticides cause acid rain. Pesticides enter the food chain. Pesticides increase the nitrates in soil. Pesticides kill other plants. [Turn over

16 39 The table shows the amount of carbon dioxide in the atmosphere in three different years. 16 year carbon dioxide / parts per million What is the most likely cause of this change? destruction of rainforests increased use of fertilisers containing nitrogen pollution of air by sulphur dioxide rise in the sea level 40 The diagram shows part of the water cycle. t which stage does the use of nitrate fertilisers in agriculture cause the greatest pollution? water vapour sea land plants rivers

UNIVERSITY OF CAMBRIDGE INTERNATIONAL EXAMINATIONS International General Certificate of Secondary Education BIOLOGY

UNIVERSITY OF CAMBRIDGE INTERNATIONAL EXAMINATIONS International General Certificate of Secondary Education BIOLOGY UNIVERSITY OF MRIGE INTERNTIONL EXMINTIONS International General ertificate of Secondary Education IOLOGY 0610/01 Paper 1 Multiple hoice May/June 2006 dditional Materials: Multiple hoice nswer Sheet Soft