Biology 0610/12 February/March 2020: question paper and mark scheme

Question

Which characteristic do all living organisms show? A breathing B excretion C photosynthesis D tropism

Question

Using the binomial naming system, the Arctic fox is called Vulpes lagopus. Which row is correct? Vulpes lagopus A genus kingdom B genus species C species genus D species kingdom

Question

What is a characteristic of both insects and arachnids? A eight legs B exoskeleton C three pairs of legs D wings

Question

What structures can be found in both plant and animal cells? A cell walls and cell membranes B nuclei and cell walls C cytoplasm and chloroplasts D cell membranes and nuclei

Question

The diagram shows a sample of material taken from an organism. Which level of organisation does the sample show? A cell B organ C organ system D tissue

Question

What is the function of a root hair cell? A absorption B photosynthesis C reproduction D support

Question

Which row describes osmosis? energy from movement through a movement respiration partially permeable of water used membrane A key B = yes C = no D

Question

A student made the following statements about the movement of ions by active transport. 1 It is the net movement of particles from a low concentration to a high concentration. 2 It is the net movement of particles from a high concentration to a low concentration. 3 It requires the use of energy from respiration. 4 It can only take place in living cells. Which statements are correct? A 1, 3 and 4 B 1 and 4 only C 2 and 4 only D 2 only

Question

A test was performed on a food substance. A positive result was shown by a colour change to blue-black. What solution was used for the test? A biuret solution B DCPIP solution C iodine solution D Benedict’s solution

Question

The diagram shows an experiment on the digestion of the protein in egg albumen by protease. The protease was taken from a human stomach. In which test-tube will the protein be digested most quickly? A B C D water-bath at 37 °C egg albumen egg albumen egg albumen egg albumen + + + + protease dilute dilute dilute hydrochloric hydrochloric hydrochloric acid acid acid + + protease boiled protease

Question

What is left at the end of an enzyme-controlled reaction? A enzymes and products B enzymes and substrates C enzymes only D products only

Question

A student drew a diagram to show the substances used and produced in photosynthesis in a leaf. 1 + 2 are used by the leaf 3 + 4 are produced by the leaf Which row shows the correct labels for the diagram? 1 2 3 4 A carbon dioxide glucose oxygen water B water carbon dioxide glucose oxygen C oxygen water carbon dioxide glucose D glucose oxygen water carbon dioxide

Question

The diagram shows a type of plant cell. cytoplasm vacuole nucleus chloroplast In which tissue is this cell found? A leaf epidermis B palisade mesophyll C root epidermis D xylem

Question

The list shows some human health problems. 1 chronic obstructive pulmonary disease 2 constipation 3 coronary heart disease 4 obesity Which problems can be caused by malnutrition? A 1, 2 and 3 B 1 and 3 only C 2, 3 and 4 D 2 and 4 only

Question

The table shows the percentage of students from two schools who have one or more decayed teeth. percentage of students with decayed teeth school X 30 school Y 60 What might explain these results? A There is less calcium in the students’ diet at school X than at school Y. B There is less sugar in the students’ diet at school X than at school Y. C There is less vitamin C in the students’ diet at school X than at school Y. D There is less vitamin D in the students’ diet at school X than at school Y.

Question

Digested proteins are absorbed into the blood as A amino acids. B fatty acids. C glucose. D glycerol.

Question

When stems with white flowers are cut and placed in a blue stain the petals turn blue. Which tissue in the stem does the stain travel through to reach the petals? A epidermis B mesophyll C phloem D xylem

Question

Which process releases water vapour into the atmosphere from the leaves of trees? A active transport B osmosis C respiration D transpiration

Question

Which person is most at risk from developing coronary heart disease? age gender activity level other information A 23 female professional non-smoker athlete B 40 male plays sport non-smoker at weekends C 19 female plays sport smokes 5 cigarettes a day twice a week D 65 male does no exercise smokes 20 cigarettes a day

Question

The diagram shows a section through a blood vessel. P Q Which type of blood vessel is shown, and in which direction does the blood flow? type direction of vessel of flow A artery P to Q B artery Q to P C vein P to Q D vein Q to P

Question

Which disease is transmissible? A cholera B chronic obstructive pulmonary disease C lung cancer D scurvy

Question

The diagram shows an alveolus. The arrows represent the movement of gases. 1 3 2 Which row is correct? 1 2 3 A oxygen carbon dioxide air B air carbon dioxide oxygen C air oxygen carbon dioxide D carbon dioxide oxygen air

Question

Four flasks are sterilised and are set up as shown. Which flask will contain the most alcohol after several hours? A B C D cotton wool yeast yeast yeast, water yeast, water and water and water and sugar and sugar at 4 °C at 20 °C at 4 °C at 20 °C

Question

In the diagram, which letter identifies the urethra? A D B C

Question

Some organs are listed. 1 adrenal 2 pancreas 3 ovary 4 salivary Which are endocrine glands? A 1, 2 and 3 B 1, 2 and 4 C 1, 3 and 4 D 2 and 3 only

Question

The table shows some of the responses that occur in humans when body temperature changes. Which row shows the responses that occur when the body temperature increases above normal? hair lies flat shivering sweating A key B = yes C = no D

Question

What is an example of phototropism? A a chemical messenger produced by a plant B a painful sensation in response to a stimulus C the growth of a plant root towards the centre of the Earth D the growth of a plant shoot towards light

Question

The oxygen carrying capacity of the blood of smokers is less than that of non-smokers. Which component of tobacco smoke causes this? A carbon monoxide B nicotine C smoke particles D tar

Question

Which statement about asexual reproduction is correct? A Asexual reproduction produces genetically identical offspring from one parent. B Asexual reproduction produces genetically identical offspring from two parents. C Asexual reproduction produces genetically different offspring from one parent. D Asexual reproduction produces genetically different offspring from two parents.

Question

Which environmental factor is not always a requirement for seed germination? A light B oxygen C suitable temperature D water

Question

The diagram shows the female reproductive system. Where are gametes produced? B A C D

Question

Some features of cell division are listed. 1 involved in making gametes 2 involved in replacing cells 3 makes genetically different cells 4 makes genetically identical cells Which features are involved in meiosis? A 1 and 3 B 1 and 4 C 2 and 3 D 2 and 4

Question

Which cross will be pure-breeding? A a female homozygous individual and a male heterozygous individual bred together B a male homozygous individual and a female heterozygous individual bred together C two identical heterozygous individuals bred together D two identical homozygous individuals bred together

Question

What applies to selective breeding but not to natural selection? A Humans select individuals with desirable features. B Individuals may produce a large number of offspring. C Individuals pass their alleles to the next generation. D There is variation among the offspring produced.

Question

What is the principal source of energy for living organisms? A herbivores B plants C photosynthesis D the Sun

Question

The diagram shows a pyramid of numbers. level 3 2 1 Which type of organism is found at level 1? A carnivore B decomposer C herbivore D producer

Question

The diagram shows part of the carbon cycle. carbon dioxide in the air Y carbohydrates dead in living plants matter carbohydrates in living animals Which process occurs at Y? A combustion B decay C photosynthesis D respiration

Question

Chopped apple is placed into filter paper and a funnel as shown in the diagram. Enzymes are added to increase the volume of apple juice released. chopped apple filter funnel filter paper beaker apple juice Which enzyme would release the highest volume of juice? A amylase B lipase C pectinase D protease

Question

Which effect is most likely to occur as a result of deforestation? A an increase in the number of species B an increase in soil erosion C a decrease in the level of carbon dioxide in the atmosphere D a decreased risk of flooding

Question

The diagram shows the positions of four farms and the concentrations of nitrate at different points in a river. Which farm is likely to have been using too much fertiliser on its land? farm C direction of flow farm A farm D farm B direction of flow 60 40 nitrate concentration / ppm 20 0