This document contains a 60 question multiple choice science exam covering topics like photosynthesis, digestion, reproduction, and respiration. The questions test knowledge of plant and animal cell structure and function, food webs, chemical reactions, and human body systems like circulation and excretion. Key areas assessed include photosynthesis in leaves, enzymes in digestion, pollination and germination in plants, and gas exchange and breathing in humans.

1. Siparia West Secondary School
Integrated Science
Multiple Choice
Term 11
Easter 2011
Answer all questions on paper provided

2. 8. Which cells contains the most chloroplast?
A B C D
9. Food molecules that are absorbed through the walls of the small intestine are transported by
A. Plasma
B. Platelets
C. Red blood cells
D. White blood cells
10. A leaf is able to photosynthesis because
A. It has a waxy cuticle
B. It contains chlorophyll
C. It contain air sacs
D. It is flat
11. Which of the following is an enzyme secreted by the pancreas
A. Insulin
B. Lipase
C. Maltose
D. Pepsin
12. Which of the following is true about chemical digestion?
A. It occurs only in the mouth
B. It starts in the mouth and ends in the small intestine
C. It occurs only in the stomach
D. It starts in the mouth and end in the small intestine
13. What is the major nutrient found in baked chicken
A. Fat
B. Protein
C. Starch
D. Vitamins
14. Inadequate amount of vitamin A results in
A. Rickettes
B. Anemia
C. Night blindness
D. Beri- beri
15. The function of hydrochloric acid in the stomach
A. To kill bacteria
B. To digest milk
C. To digest protein
D. To make the stomach alkaline
16. A complete flower is a flower is one that:
A. Can catch pollen in the wind
B. Has a receptacle
C. Has all the floral parts
D. Can reproduce
17. There are 2 types of pollination
A. Wind and water
B. Wind and breeze
C. Cross and self
D. Wind and insect

3. 18. Rhizomes are
A. Swollen end of an underground stem
B. Horizontal underground stem
C. Short, vertical swollen stem base
D. A seed
19. Dasheen is an example of
A. Rhizome
B. Stem tuber
C. Corm
D. Root tuber
20. Osmosis means
A. solution passing from a weak solution to a stronger through a selectively permeable
membrane
B. Water passing from a weak solution to stronger one through a selectively permeable
membrane.
C. particles moving about a liquid
D. sugar moving into water in a potato
21. Hypogeal and epigeal are types of:
A. fertilization
B. germination
C. pollination
D. photosynthesis
22. Pollination is
A. the transfer of pollen
B. a seed grow into a new plant
C. The formation of a fruit
D. The fusion of an ovule and pollen
23. Germination is
A. The growth of growth a new plant from seed
B. Seed formation
C. The transfer of pollen from anthers to stigma
D. An ovule fusing with a pollen grain
24. Which of the following is the female reproduction part of the flower?
A. Petal
B. Pistil
C. Stamen
D. Sepal
25. Oxygen and carbon dioxide diffuse in and out of the leaves through the
A. Chloroplast
B. Cell wall
C. Plasma cells
D. Stomata
26 Asexual reproductions involves
A. two cells fusing
B. a cell splitting into two identical cells
C. the formation of fruit
D. sex chromosomes fusing

4. 27. Wind pollinated flowers are
A. brightly coloured
B. scented
C. produce nectar
D. small and inconspicuous
28. Which of the following happen during photosynthesis?
A. water is released into the atmosphere
B. carbon dioxide is released into the atmosphere
C. carbon dioxide is release from the atmosphere
D. water is absorbed from the air
29. Digestion of starchy foods begins in the
A. mouth
B. stomach
C. oesophagus
D. small intestine
30. The food additives added to food to remove colour
A. bleaching agent
B. preservatives
C. stabilizer
D. antioxidants
31. Which of the following are responsible for fat digestion?
A. Bile, lipase
B. Saliva, amylase
C. Stomach juice, proteases
D. Pancreatic juice, amylase
32. Which of the following processes is likely to produce a significant cooling effect in a plant?
A. Transpiration
B. Respiration
C. Osmosis
D. Diffusion
33. Brass is an alloy of
A. Iron and carbon
B. Copper and zinc
C. Copper and tin
D. Lead and nickel
34. One of the MAIN causes of soil erosion is
A. The ploughing of lands during the rainy season
B. Allowing sheep to graze a pasture after the cattle are removed
C. Heavy water run – off on unprotected soil
D. The failure to provide barriers to prevents landslips
35. A substance X has a pH of 2. This means that X is
A. An acid
B. A base
C. A salt
D. An alkali
36. Electricity bills are calculated according to the number of units of electricity used.
1 unit = 1 kilowatt (kW) x 1 hour (h) = 1 kWh.
Five 100 W lamps are used in a home for three hours each day. How many units of electricity

5. Are used by the lamps in 10 days?
A. 100 x 5 x 1000/ 10
B. 3 x 5 x 1000/ 100
C. 100 x 5 x 10/ 1000
D. 100 x 5 x 3 x 10/ 1000
37. Study the following food web.
Which of the organisms is both a predator and a prey?
A. Bird
B. Lizard
C. Caterpillar
D. Grasshopper
38. Which part of soap is grease soluble?
A. Its negative part
B. Its positive part
C. It large molecule
D. Its hydrogen atoms
39. Zinc is used to coat iron because it is
A. More reactive than iron
B. Does not react with oxygen
C. Has lower density than iron
D. Forms a non – corrosive oxide layer
40. Excretion is removal of waste formed from
A. Metabolism
B. Absorption
C. Assimilation
D. Mechanical digestion
41. Which of the following pairs of substances are non – biodegradable?
A. Paper, glass bottle
B. Bread, fried chicken
C. Glass vase, iron nails
D. Cardboard box, plastic cup
42. During breathing, the diaphragm is contracted. What’s the need of doing this?
A. To increase size of alveoli
B. To reduce pressure in chest cavity
C. To increase amount of oxygen absorbed
D. To make it of easier for diffusion t occur
43. A source for soapless detergent is
A. Rocks
B. The sea
C. Crude oil
D. Soil minerals

6. 44. An appliance has a power rating 100W and a voltage of 50V. What is resistance of the
appliance?
A. 2Ω
B. 25Ω
C. 100Ω
D. 5000Ω
45. Which of the following is the most likely food chain?
A. Zoo plankton small fish kingfisher
B. Microscopic plants zoo plankton small fish
C. Rooted water plants zoo plankton small fish
D. Small fish microscopic plants kingfisher
46. The plant cell is different from an animal cell because it
A. Has vacuoles
B. Has a cell wall
C. Is circular in shape
D. Is made mainly of water
47. Which is the correct flow of blood which leaves the lungs?
A. Pulmonary vein left ventricle left atrium
B. Pulmonary artery right atrium right ventricle
C. Pulmonary vein left atrium left ventricle
D. Pulmonary artery right ventricle right atrium
48. The urine of a healthy person is absent in
A. Salt, urea
B. Protein, salt
C. Glucose, urea
D. Glucose, protein
49. After a session of vigorous exercise, the body sweats profusely. This is a way in which th
body
A. Removes urea from the body
B. Releases heat from the body
C. Enhance the ability of muscles to do work
D. Increases the production salt in the skin
50. There are a few situations which are considered excretion in a human body. Which of the
following is an excretion method?
A. Expulsion of faeces via anus
B. Secretion of bile by gall bladder
C. Removal of urea via urinary system
D. Removal of menstrual blood via vagina
51. When soap dissolves grease, an emulsion is formed because the
A. The soap is insoluble in water
B. Grease is dispersed throughout the water
C. Long chain of sodium stearate is soluble in water
D. The sodium stearate forms insoluble magnesium stearate
52. Which of the following statements is FALSE of pollination?
A. It can be performed by wind
B. It must occur before fertilization
C. It helps to produce offspring of different physical traits
D. It ensures that offspring have the same characteristics as their parents

7. 53. What are the products of anaerobic respiration performed by yeast?
A. Lactic acid and ethanol
B. Carbon dioxide and water
C. Carbon dioxide and lactic acid
D. Carbon dioxide and ethanol
54. In the colon water passes into the blood system by the process of
A. Excretion
B. Diffusion
C. Osmosis
D. Assimilation
55. Which of the following explains why toothpaste is alkaline?
A. To reduce the high acidity of the stomach juices
B. To neutralize acids produced by bacteria in the teeth
C. To enhance action of salivary juice which is alkaline
D. To aid digestion by amylases which work best in alkaline environment
56. Most grass flowers have anthers that hang out of the flowers. What other characteristics do
they have?
A. Sweet nectar
B. Bright petals
C. Tiny, dry pollen grain
D. Short, stumpy stigma
57. Which of the following explains why veins have valves?
A. They carry warm blood
B. They have thin muscular walls
C. The blood pressure in them is low
D. They contain deoxygenated blood
58. After a pollen grain attaches itself to a stigma, a pollen tube grows from it. What is the
function of this tube?
A. To stimulate enzymes to change the flower to a fruit
B. To allow the pollen grain to fuse with the stigma
C. To help the flower produce male gametes necessary for fertilization
D. To transport the male gametes to the female gamete for fertilization
59. In many parts of the tropics, large areas of forest are destroyed. Which of the following
could be a result of his action?
A. An increase in soil erosion
B. An increase in the fertility of top soil
C. A decrease in carbon dioxide content
D. A decrease in flooding occurrences
60. A person’s alveoli are damaged. What could he be suffering from?
A. Lung cancer
B. Emphysema
C. Heart attack
D. Bronchitis
The End.