LEARNING OUTCOME TEST
TIME-40 MIN Chapter 5 Life Processes M.M.-40
1.Which of the following is an autotroph?
A. Human B. Lion C. Green plant. D. Mushroom
2. Digestion of food in human starts from which organ of digestive system?
A) Mouth due to presence of saliva B) Oesophagus that moves the food in gut
C) Stomach due to gastric juice D) Intestine due to intestinal juice
3. What is likely to happen if the number of villi increases in small intestine?
A) Increase in the absorption of food B) Fast elimination of waste from the body
C) Increase in the breakdown of food D) Increase in the flow of blood in the small intestine
4. A student sets up an experiment to study the role of enzymes in the digestion of food.In which test tube, the digestion of
protein will occur?
A) Test tube A as pepsin will breakdown into simple molecules.
B) Test tube B as HCl will breakdown into complex molecules.
C) Test tube A as pepsin will breakdown protein into simple molecules.
D) Test tube B as HCl provides optimum pH to activate the pepsin for breakdown of protein into simple molecules.
5. The process in which transport of soluble products of photosynthesis occurs in plants is known as:
A) Transpiration B) Evaporation C) Conduction D) Translocation
6.. Which of the following equations show the correct conversion of CO2 and H2O into carbohydrates in plants?
(i) Boil the leaf in alcohol (ii) Boil the leaf in wate
(iii) Dip the leaf in iodine solution (iv) Wash the leaf in water
The correct sequence of the steps is:
A) (i),(iv),(ii),(iii) B) (ii),(iv),(i),(iii) C) (ii),(i),(iv),(iii) D) (iv),(i),(ii),(iii)
7. Which pathway will occur in the cell of an athlete, who is requremore
A)Glucose B) PROTEIN c)all d)fat
8. Which of these statements is correct about alveoli?
A) They form a very large surface area .B) They have a very thin wall.
C) They are covered with blood capillaries .D) All of these.
9. The contraction and expansion movement of the walls of the food pipe is called:
(a) translocation (b) transpiration (c) peristaltic movement (d) digestion
10. When a few drops of iodine solution are added to rice water, the solution turns blue- black in colour. This
indicates that rice water contains:
(a) fats(b) complex proteins(c) starch(d) simple proteins
11. The exit of unabsorbed food material is regu-lated by
(a) liver(b) anus(c) small intestine(d) anal sphincter
12. What are the products obtained by anaerobic respiration in plants?
(a) Lactic acid + Energy (b) Carbon dioxide + Water + Energy
(c) Ethanol + Carbon dioxide + Energy (d) Pyruvate
13. The breakdown of pyruvate to give carbon di-oxide, water and energy takes place in
(a) cytoplasm (b) mitochondria (c) chloroplast (d) nucleus
14. Glycolysis process occurs in which part of the cell?
(a) Cytoplasm (b) Nucleus (c) Mitochondria (d) Chloroplast
15. Name the substances whose build up in the muscles during vigorous physical exercise may cause cramps?
(a) Ethanol + Carbon dioxide + Energy (b) Lactic acid + Energy
(c) Carbon dioxide + Water + Energy (d) Pyruvate
16. Name the pores in a leaf through which respi-ratory exchange of gases takes place.
(a) Lenticels (b) Vacuoles (c) Xylem (d) Stomata
17. The respiratory pigment in human beings is:
(a) carotene (b) chlorophyll (c) haemoglobin (d) mitochondria
18. Which plant tissue transports water and min-erals from the roots to the leaf?
(a) Xylem (b) Phloem (c) Parenchyma (d) Collenchyma
19. The movement of food in phloem is called:
(a) transpiration (b) translocation (c) respiration (d) evaporation
20. A blood vessel which pumps the blood from the heart to the entire body:
(a) artery (b) capillary (c) Vein (d) Haemoglobin
21.Fill in the Blanks
1. The exit of food from the stomach is regulated by a ………. muscle.
2. ………. is the longest part of the alimentary canal.
3. The process of breakdown of glucose, (a six-carbon molecule) into pyruvate, (a three-carbon molecule), takes
place in the ………. .
4. ………. is the site of the complete digestion of carbohydrates, proteins and fats.
5. Breaking of pyruvate using oxygen takes place in the ………. .
6. Rings of cartilage are present in the wind pipe to ensure that the ………. .
7. The blood has ………. cells which plug the leakage in the vessels by helping to clot the blood at the point of
injury.
8.Human heart are---------------------
9.Fish blood are----------
10.Plant trans port water---------------
22. Following questions consist of two statements – Assertion (A) and Reason (R). Answer these questions
selecting the appropriate option given below:
(a) Both A and R are true and R is the correct explanation of A.
(b) Both A and R are true but R is not the correct explanation of A.
(c) A is true but R is false.
(d) A is false but R is true.Q.1. Assertion (A) : Plants lack excretory organs.
Reason (R) : Plants usually absorb essential nutrients.
Q.2. Assertion (A) : In anaerobic respiration, one of the end product is alcohol.
Reason (R) : There is an incomplete breakdown of glucose.
Q.3. Assertion (A) : In plants there is no need of specialised respiratory organs.
Reason (R) : Plants do not have great demands of gaseous exchange.
Q.4. Assertion (A) : Bile is essential for digestion of lipids.
Reason (R) : Bile juice contains enzymes.
Q.5. Assertion (A) : Carbohydrate digestion mainly takes place in small intestine.
Reason (R) : Pancreatic juice contains the enzyme lactase.
Q.6. Assertion (A) : Aerobic respiration requires less energy as compared to anaerobic respiration.
Reason (R) : Mitochondria is the powerhouse of the cell.
Q.7. Assertion (A): Arteries are thick-walled and elastic in nature.
Reason (R) : Arteries have to transport blood away from the heart.Q.8. Assertion (A) : Human heart is four-
chambered.
Reason (R) : Vena cava is the only artery that supplies deoxygenated blood to the heart.
Q.9. Assertion (A): Energy is required to carry out different life processes.
Reason (R) : Energy is obtained in the form of ATP in the mitochondria.
Q.10. Assertion (A): Rings of cartilage are present in the throat,
Reason (R) : These ensure that the air-passage does not collapse
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