0610_w18_qp_31
A paper of Biology, 0610
Questions:
8
Year:
2018
Paper:
3
Variant:
1
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1
shows a diagram of the human female reproductive system. D F E A B C Using letters A–F, identify the parts of the human female reproductive system in . where eggs are made where fertilisation occurs where implantation of the zygote occurs Oestrogen is a hormone responsible for the development of secondary sexual characteristics during puberty. State the name of the part of the female reproductive system that secretes oestrogen. Describe how the hormone oestrogen is transferred to its target organs. Table 1.1 shows some secondary sexual characteristics. Place ticks (3) in Table 1.1 to show which characteristics develop during puberty in boys and girls. One row has been done for you. Table 1.1 secondary sexual characteristic boy girl breasts grow growth of sex organs growth of pubic hair start of menstruation voice deepens Sperm and egg cells are specialised cells that are adapted for reproduction. The boxes on the left show some specialised cells. The boxes on the right show the functions of some specialised cells. Draw four lines to link each specialised cell with its function. One has been done for you. ciliated cell nerve cell palisade mesophyll cell red blood cell root hair cell absorption of water conduction and support conduction of impulses movement of mucus photosynthesis transport of oxygen specialised cell function
16. Reproduction  →  16.4. Sexual reproduction in humans
16. Reproduction  →  16.5. Sex hormones in humans
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2
The apparatus shown in was used to investigate the effects of different conditions on the rate of photosynthesis in an aquatic plant. oxygen water funnel aquatic plant A student investigated the effects of light and carbon dioxide on the rate of photosynthesis. The number of bubbles of oxygen produced in one minute was counted in four different conditions. Table 2.1 shows the results. Table 2.1 test conditions number of bubbles of oxygen per minute light carbon dioxide source added to the water present no absent no present yes absent yes State two conclusions about the conditions needed for photosynthesis using the information in Table 2.1. The investigation was carried out at 15 °C. It was repeated at 25 °C. Suggest and explain the effect this had on the results of test 2 and test 3. test 2 test 3 Carbon dioxide enters plant cells by diffusion. The word diffusion on the left can be joined to two boxes on the right to make two correct statements about diffusion. Draw two straight lines from diffusion to the boxes to complete the two statements. Diffusion involves a genetic change. is the movement of particles from high concentration to low concentration. is the movement of particles from low concentration to high concentration. occurs due to the random movement of particles. only occurs in plant cells. requires a partially permeable membrane. requires energy.
6. Plant nutrition  →  6.1. Photosynthesis
3. Movement into and out of cells  →  3.2. Osmosis
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3
A student completed different types of activity. She measured her pulse rate during each type of activity in beats per minute . The results are shown in . pulse rate / bpm type of activity resting running walking cycling swimming Use to answer these questions. State the type of activity that results in the highest pulse rate. State the pulse rate of the student when she was cycling. bpm Calculate the percentage increase in her pulse rate between resting and walking. Show your working and give your answer to the nearest whole number. % Measuring the pulse is one way of monitoring the activity of the heart. State one other way of monitoring the activity of the heart. Describe the changes to a person’s breathing during exercise. Aerobic respiration increases during exercise. Use the words from the list to complete the definition of aerobic respiration. Each word or phrase may be used once, more than once or not at all. cells carbon dioxide DNA oxygen the heart the brain nutrient Aerobic respiration is the chemical reactions in that use to break down molecules to release energy. Anaerobic respiration occurs when exercising vigorously. State the word equation for anaerobic respiration in muscle cells. State one advantage of using aerobic rather than anaerobic respiration in humans.
12. Respiration  →  12.3. Anaerobic respiration
12. Respiration  →  12.2. Aerobic respiration
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4
shows the four different types of human teeth. incisor canine premolar molar shows a diagram of the position of the different types of teeth in the mouth. R Q S P Complete Table 4.1 by writing the names, positions and functions of the different types of teeth in the mouth shown in . Table 4.1 name of type of tooth letter on function R incisor grinding premolar tearing and grinding Teeth can develop dental decay. Explain how dental decay is caused. Describe two ways to avoid dental decay.
7. Human nutrition  →  7.3. Physical digestion
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5
The energy we use comes from a variety of sources. shows the percentage of each source of energy used in one country in 2011. oil 23% natural gas 8% coal 41% solid biomass & waste 23% nuclear & other renewables 5% Coal, natural gas and oil are types of fossil fuel. Calculate the total percentage of energy in that came from fossil fuels. % Explain why fossil fuels are not sustainable resources. Combustion of fossil fuels releases carbon dioxide into the atmosphere. State the name of two other processes that release carbon dioxide into the atmosphere. State the name of one process that removes carbon dioxide from the atmosphere. Describe the effects on the environment of increasing carbon dioxide concentration in the atmosphere. Improvements in food production have allowed human populations to increase. Describe how modern technology has increased the production of crop plants.
19. Organisms and their environment  →  19.2. Food chains and food webs
20. Human influences on ecosystems  →  20.1. Food supply
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6
is a photograph of a lion. Lions are mammals and have the scientific name Panthera leo. State one feature visible in that identifies the lion as a mammal. State the genus of this mammal. Mammals are one of the five groups of vertebrates. The list describes some of the features of fish, amphibians, reptiles, mammals and birds. Some features belong to more than one group. State the name of one vertebrate group which has the distinguishing feature of: scales feathers gills smooth moist skin State two features of the cells of all living organisms.
1. Characteristics and classification of living organisms  →  1.3. Features of organisms
1. Characteristics and classification of living organisms  →  1.2. Concept and uses of classification systems
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7
shows a goat with white fur. Fur colour is inherited in goats. • The allele for white fur is represented by A. • The allele for black fur is represented by a. • Each goat is identified by the numbers 1 to 8 in . shows a diagram of the inheritance of fur colour in a herd of goats. goat 1 Aa goat 3 aa goat 4 Aa goat 5 aa goat 7 Aa goat 8 Aa goat 6 AA goat 2 aa Use to answer these questions. State how many goats have white fur. State the phenotype of goat 5. Draw circles around two terms that can be used to describe the genotype of goat 6. black dominant heterozygous homozygous recessive white State the name of the type of variation shown by fur colour in these goats. A farmer identified two goats to breed together. • The genotype of the male goat is Aa. • The genotype of the female goat is Aa. Complete the genetic diagram and the phenotypic ratio for this cross. male female phenotypic ratio white : black Describe the process a farmer could use to breed a herd of white goats.
17. Inheritance  →  17.4. Monohybrid inheritance
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8
Catalase is an enzyme that catalyses the breakdown of hydrogen peroxide into water and oxygen. The effect of temperature on catalase activity was investigated. The results are shown in 0.0 temperature / °C catalase activity / arbitrary units 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 1.2 1.1 1.3 1.4 1.5 State the temperature at which catalase is most active in . °C Explain why there is no enzyme activity at 60 °C. State one factor other than temperature that affects enzyme activity. Digestive enzymes are used in chemical digestion to break down large insoluble molecules to smaller soluble molecules. The boxes show some large insoluble molecules, some digestive enzymes and some smaller soluble molecules that are produced during digestion. Draw one straight line from each enzyme to the insoluble molecule it acts on. Draw another line from each enzyme to the smaller soluble molecule that is produced. Draw a total of six lines. fat protein starch insoluble molecule soluble molecules amylase amino acids lipase fatty acids and glycerol protease sugars enzyme
5. Enzymes  →  5.1. Enzymes
7. Human nutrition  →  7.4. Chemical digestion
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