Microsoft Word libs task oosci 11 5090 12 2022
A 15 raining 00:00 32 B
Yüklə 0,51 Mb. Pdf görüntüsü
|
|
A
15 raining 00:00 32 B 12 dry 14:00 24 C 6 fog / rain 08:00 3 D 5 dry 22:00 16 14 Some people have a rare heart condition in which the lower left chamber of the heart has not developed properly and is much smaller than normal. The immediate result of this condition is to cause lower than normal blood flow into which blood vessel? A aorta B pulmonary artery C pulmonary vein D vena cava 15 Which route does blood take around the body? A pulmonary artery → heart → aorta → lungs → pulmonary vein → heart → vena cava B pulmonary vein → heart → lungs → aorta → pulmonary artery → heart → vena cava C vena cava → heart → pulmonary artery → lungs → pulmonary vein → heart → aorta D vena cava → heart → pulmonary vein → lungs → pulmonary artery → heart → aorta 7 © UCLES 2022 5090/12/O/N/22 [Turn over 16 The diagram shows the transfer of materials between blood in a capillary and tissue fluid. high pressure blood low pressure blood tissue cells tissue fluid tissue fluid capillary 1 2 3 4 Which row shows the correct labels for the arrows in the diagram? 1 2 3 4 A carbon dioxide glucose oxygen water B glucose water oxygen urea C oxygen glucose carbon dioxide water D oxygen water carbon dioxide glucose 8 © UCLES 2022 5090/12/O/N/22 17 An experiment is set up, as shown. Test-tubes 1 and 2 contain limewater. Limewater is a clear solution that turns cloudy in the presence of carbon dioxide. Air is pumped through the apparatus. test-tube 1 test-tube 2 air flow air flow solution to absorb carbon dioxide living animals What is the appearance of the limewater in test-tubes 1 and 2 after a period of 10 minutes? test-tube 1 test-tube 2 A clear clear B clear cloudy C cloudy clear D cloudy cloudy 9 © UCLES 2022 5090/12/O/N/22 [Turn over 18 Fitness training in athletes reduces the need for anaerobic respiration. It also increases the rate at which lactic acid is removed after exercise. The table shows the concentration of lactic acid in the blood of four different athletes. They exercise for 20 minutes and rest for the next 70 minutes. lactic acid concentration / mg per 100 cm 3 of blood time (min) athlete 1 athlete 2 athlete 3 athlete 4 0 20 20 20 20 exercise 10 84 82 60 86 20 95 90 85 98 30 92 95 76 99 40 84 80 62 95 50 78 75 50 81 60 66 60 38 68 70 54 50 25 62 80 35 30 20 50 90 28 20 20 39 From the fittest athlete to the least fit, which order is correct? A 3 → 2 → 1 → 4 B 1 → 2 → 4 → 3 C 2 → 3 → 4 → 1 D 3 → 1 → 2 → 4 10 © UCLES 2022 5090/12/O/N/22 19 The diagram shows the human gas exchange system. 1 3 2 4 Which row shows the correct labelling? 1 2 3 4 A trachea larynx bronchiole bronchus B trachea larynx bronchus bronchiole C larynx trachea bronchiole bronchus D larynx trachea bronchus bronchiole 20 What are two main functions of the kidneys? A to make toxins in the blood harmless and to remove excess salt in the blood B to remove excess salt in the blood and to remove urea from the blood plasma C to remove urea from the blood plasma and to convert glucose to glycogen D to convert glucose to glycogen and to make toxins in the blood harmless 21 Which changes occur when a person walks from a very cold room into a hot room? sweating skin blood vessels A decreases constrict B decreases dilate C increases dilate D increases constrict 11 © UCLES 2022 5090/12/O/N/22 [Turn over 22 The graph shows measurements taken of one aspect of the internal environment of the human body over time. 0 20 40 time / minutes 60 80 body temperature / ° C limits of variation What controls the internal environment of the human body to keep each aspect within strict limits? A excretion B homeostasis C positive feedback D respiration 23 When a bright light is shone into the eye, the pupil becomes smaller. Which statement explains this response? A Ciliary muscles in the eye contract. B Circular muscles in the iris contract. C Sensory cells in the iris detect the bright light. D Sensory neurones stimulate the ciliary muscles in the iris. 12 © UCLES 2022 5090/12/O/N/22 24 The flow chart describes a reflex action. a painful stimulus is picked up by a ...E... → the impulse is transmitted by a ...F... neurone → the impulse is passed to the ...G... neurone via the ...H... neurone → finally the impulse is transmitted to the ... I ... to create a response Which row correctly fills the flow chart? E F G H I A effector relay motor sensory brain B effector sensory relay motor receptor C receptor sensory motor relay effector D receptor motor sensory relay brain 25 A patient shows symptoms of unexplained weight loss, severe thirst and frequent need of urination. A test shows high levels of glucose in the urine. Which condition is diagnosed? A cardiovascular disease B diabetes C anaemia D obesity 13 © UCLES 2022 5090/12/O/N/22 [Turn over 26 Which graph shows the lengths of the biceps and triceps muscles in the upper arm when the elbow joint is fully extended and the arm is straight? biceps triceps length of muscle A biceps triceps length of muscle B biceps triceps length of muscle C biceps triceps length of muscle D 27 Four discs, A , B , C and D , each containing a different antibiotic, were placed onto agar gel in a Petri dish. The agar gel contained E. coli bacteria. The Petri dish was then sealed and incubated for 24 hours at 35 ° C. The results are shown. Which antibiotic is most effective? A B C D clear area has no bacteria agar gel containing E. coli bacteria 14 © UCLES 2022 5090/12/O/N/22 28 Bacteria, fungi and viruses are often grouped together as microorganisms. Which statement about microorganisms is correct? A All types of microorganism are used to produce antibiotics. B Bacteria and viruses can only be found inside living cells. C Decomposition is brought about by bacteria and fungi only. D All microorganisms contain DNA but not in a nucleus. 29 Two containers, X and Y, were filled with equal amounts of dough mixture for making bread. The mixture in Y had yeast in it. The containers were then left in a warm place for two hours. The diagram shows their appearance after this time. container X container Y dough mixture without yeast dough mixture with yeast Which substance produced by the yeast causes the difference between the dough in X and Y? A alcohol B carbon dioxide C lactic acid D oxygen 30 What is the principal source of energy input to biological systems? A food chains B photosynthesis C producers D the Sun 15 © UCLES 2022 5090/12/O/N/22 [Turn over 31 In the carbon cycle, what is one way that carbon can enter the atmosphere? A burning B feeding C fossilisation D photosynthesis 32 The graph shows the concentration of dissolved oxygen at different points along a river. At which point is sewage emptied into the river? A B C D concentration of dissolved oxygen distance along river direction of water flow 33 A gardener has two groups of strawberry plants, labelled X and Y. They are grown to maturity under identical conditions. He makes some observations and concludes that those in group X were produced asexually and those in group Y were grown from seeds. Which observations most closely support his conclusions? 1 Group X plants produced flowers all at the same time. 2 Group X plants produced flowers which varied in shape and size, some of which were produced earlier than others. 3 Group Y plants produced flowers all at the same time. 4 Group Y plants produced flowers which varied in shape and size, some of which were produced earlier than others. A 1, 2, 3 and 4 B 1 and 4 only C 2 and 3 only D 4 only 16 © UCLES 2022 5090/12/O/N/22 34 The diagram shows a section through a flower. Where does fertilisation take place? A B C D 35 Human gametes are different from each other. Which information about male gametes is correct? size numbers released at one time movement A large normally one cannot move on their own Yüklə 0,51 Mb. Dostları ilə paylaş:
|