UCE Biology 2019 Paper 1 Leave a Comment / By Admin / January 4, 2024 Welcome to your UCE Biology 2019 Paper 1 SECTION A (30 MARKS) Answer all questions in this section. Write the letter representing the correctanswer to each question in the boxes provided. None Question 1 Which one of the following is a characteristic of a monocotyledonous stem? Scattered vascular bundles. Vascular bundles arranged in a ring. Vascular bundles have cambium. Have a distinct pith. None Question 2 The lipase enzyme catalyses the breakdown of fats proteins maltose sucrose None Question 3 The kind of solution which would make a fully turgid plant cell placed in it to shrink is more dilute than the cell content of the same concentration as the cell content more concentrated than the cell content less in quantity than the cell sap None Question 4 Which one of the following features is common to both class insecta and class arachnida Having three main body divisions Possession of an exoskeleton Having three pairs of legs Possession of antennae None Question 5 Which one of the following vectors transmits yellow fever? Female Anopheles mosquito Culex mosquito Tsetse fly Aedes mosquito None Question 6 Which one of the following is a benefit of using manure? Preventing soil erosion Improving crumb structure of soil Reducing population of harmful organisms in soil Maintaining adequate soil cover None Question 7 Figure 1 shows a food webWhich one of the following organisms in figure 1 is a secondary consumer? Hen Grass Eagle Termite None Question 7 Figure 1 shows a food webWhich one of the following organisms in figure 1 is a secondary consumer? Hen Grass Eagle Termite None Question 9 * Which 011e of the following pairs is made up of only major elements in plant nutritions? Magnesium and Calcium. Molybdenum and Iodine. Boron and Chlorine. Manganese and Copper. None Question 8 Which one of the following pairs is made up of only major elements in plant nutritions? Magnesium and Calcium. Molybdenum and Iodine. Boron and Chlorine. Manganese and Copper. None Question 8 Which 011e of the following pairs is made up of only major elements in plant nutritions? Magnesium and Calcium. Molybdenum and Iodine. Boron and Chlorine. Manganese and Copper. None Question 9* Which one of the following pairs is made up of only major elements in plant nutritions? None Question 10 During expiration in a bony fish,the operculum is forced open when the floor of the buccal cavity is lowered. volume of the buccal cavity increases. pressure in the buccal cavity decreases. pressure in the buccal cavity increases. None Question 11 In which part of the nephron does reabsorption of sugars take place? Distal convoluted tubule. Loop of Henle. Proximal convoluted tubule . Collecting duct. None Question 12 Where is the image of a far object formed in the eye of a short-sighted person? On the choroid. Behind the retina. In front of the retina. On the blind spot. None Question 13 A potted plant placed horizontally on a rotating klinostat continues to grow in a horizontal direction because auxins migrate to the tip of the shoot. are uniformly distributed in the shoot. migrate to the dark side of the shoot. migrate to the illuminated side of the shoot. None Question 14 Which one of the following characteristics can be used to identify a cervical vertebra? Presence of small neural canal and metapophysis. long neural spine and large centrum. small transverse processes and narrow neural spine. vertebraterial canals and short neural spine. None Question 15 Which one of the following characteristics of flowers encourages cross pollination? Being unisexual. Being bisexual. Anthers above the stigma. Stamens and pistil remain enclosed within petals. None Question 16 Which one of the following human characteristics exhibits discontinuous variation? Height. Blood groups. Weight. Skin colour. None Question 16 Which one of the following human characteristics exhibits discontinuous variation? Height. Blood groups. Weight. Skin colour. None Question 17 The function of sodium hydrogen carbonate in an experiment to show that carbon dioxide is necessary for photosynthesis is to; absorb carbon dioxide. reduce oxygen. produce water. produce carbon dioxide. None Question 18 What is the effect of rapid elongation of the hypocotyl during seed germination? Cotyledon remains underground. Plumule grows straight out of the ground. Cotyledon is carried above ground. Hypocotyl straightens. None Question 19 A normal man married to a normal woman had a haemophiliac child. Suggest the sex of the child with a reason. Female, because males do not suffer from haemophilia. Male, because he inherited the trait from the carrier father. Female, because she inherited the trait from the ·normal father. Male,because he inherited the trait from the carrier mother. None Question 19 A normal man married to a normal woman had a haemophiliac child. Suggest the sex of the child with a reason. Female, because males do not suffer from haemophilia. Male, because he inherited the trait from the carrier father. Female, because she inherited the trait from the ·normal father. Male,because he inherited the trait from the carrier mother. None Question 20 Which of the following pairs are correct products of aerobic respiration in both plants and animals? Lactic acid and water. Alcohol and carbon dioxide. Carbcn dioxide and water. Lactic acid and carbon dioxide. None Question 21 Which one of the following responses are likely to occur in the human body when environmental temperature increases? Vasodilation. Shivering. Contraction of the erector pill muscle. Increased metabolism. None Question 22 * Figure 2 represents part of a sensory neurone. None Question 22 * Figure 2 represents part of a sensory neurone. None Question 22 * Figure 2 represents part of a sensory neurone. None Question 22 * Figure 2 represents part of a sensory neurone. None Question 22 * Figure 2 represents part of a sensory neurone. None Question 23 Which one of the following is a function of oestrogen in humans? Causes Graafian follicle to develop. Repairs the uterine lining. Causes degeneration of the corpus luteum. Causes ovulation. None Question 24 Which one of the following is an adaptation of arteries to transport blood under high pressure? Their innermost layer is smooth. They have thick and elastic walls. They have wide lumen. Their walls are thin and inelastic. None Question 24 Which one of the following is an adaptation of arteries to transport blood under high pressure? Their innermost layer is smooth. They have thick and elastic walls. They have wide lumen. Their walls are thin and inelastic. None Question 24 Which one of the following is an adaptation of arteries to transport blood under high pressure? Their innermost layer is smooth. They have thick and elastic walls. They have wide lumen. Their walls are thin and inelastic. None Question 25 Which one of the following bones is found in the human fore limb? Fibula. Femur. Tibia. Ulna. None Question 26 Sperms in the mammalian male reproductive system are stored in the urethra. epididymis. seminiferous tubule. prostate gland. None Question 26 Sperms in the mammalian male reproductive system are stored in the urethra. epididymis. seminiferous tubule. prostate gland. None Question 27 Which one of the following characteristics belongs ta a fruit dispersed by water? Hooks. Wings. Fibrous mesocarp Pericarp with line of weakness None Question 28 Which one of the following conditions increases the rate of transpiration? High temperature. Low light intensity. Still air. High atmospheric pressure. None Question 29 The association between nitrogen fixing bacteria in the root nodules and the leguminous plant can best be described as mutualism. commensalism. parasitism. competition. None Question 30 All the following conditions result from deficiency of vitamins of the B group except beriberi. pellagra. pernicious anaemia. failure of blood to clot. None SECTION B (40 MARKS) Answer all questions in this section. Answers must be written in the spaces provided. None Question 31* In the experiment,two glass tubes were filled with different soil samples A and B.The glass tubes were placed in a basin of water and left to stand for 5 days.The rise of water column in the each soil sample was measured and recorded each day for 5 days as shown in the table 1 None SECTION C (30 MARKS} Answer any two questions from this section. Additional questions answered will not be marked. Answers to these questions must be written in the answer bookletsprovided. None Question 34* (a)Describe the different types of immunity in humans.(06 marks)(b)Explain the role of blood in body defence.(04 marks)(c) Give any five ways in which the body immunity can be weakened.(05 marks) None Question 32* Figure 3 is a diagram showing the uterus of a pregnant woman. Study it and answers questions that follow;(a)Name the parts labelled A,B,C and D. (02marks)A B C D (b)Give any one function for each of the parts labelled A,B,C and D. (04 marks)(c) State any two adaptations of part A for its function. (02 marks) Question 33* (a)What kind of response is demonstrated when maggots placed in a choice chamber move towards the wet part?( 02 marks)(b)Give the importance of the response stated in (a) to the maggots. (02 marks)(c)Explain any three tropic responses. (04 marks)(d)Explain one significance of the tropic responses in;(i) providing support to plants. (1½ marks)(ii) aiding photosynthesis. (1½ marks) None Question 35* (a) How is light from a nearby object focused on the retina of a humaneye? (08 marks)(b) (i) Explain why a long sighted person cannot see near objects clearly. (03 marks)(ii) Using a diagram, explain how long sightedness can becorrected None Question 36* a) Give the meaning of each of the following terms:(i) Parasitism. (02 marks)(ii) Symbiosis. (02 marks)(b) How is a tapeworm adapted to its parasitic mode tapeworms in humans(03 marks)(c) Outline three control measures to prevent the spread or tapeworms in humans (03 marks) None Question 37* (a) Describe how leaves of green plants are suited for photosynthesis .(10 marks)(b) Explain how each of the following substances is utilised by a plant;(i) Water absorbed. (02 marks)(ii) Food manufactured. (03 marks) None Time's up "✨Spread success—share these past papers and empower others to excel!✨" Whatsapp Telegram Facebook 0 Twitter Wechat Linkedin 0
