JKBOSE CLASS 10TH IMPORTANT MCQ,S FROM UNIT ( LIFE PROCESS AND CONTROL AND COORDINATION ) WITH ANSWERS
1. In amoeba, food is digested in the:
(a) Food vacuole
(b) Mitochondria
(c) Pseudopodia
(d) Chloroplast
Correct Answer: Option (a)
2. In which of the following groups of organisms are food materials broken down outside the body and absorbed?
(a) Mushroom, green plants, amoeba
(b) Yeast, mushroom, bread mould
(c) Paramecium, amoeba, cuscuta
(d) Cuscuta, lice, tapeworm
Correct Answer: Option (b)
3.The contraction and expansion movement of the walls of the food pipe is called:
(a) Translocation
(b) Transpiration
(c) Peristaltic movement
(d) Digestion
Correct Answer: Option (c)
4. 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
Correct Answer: Option (c)
5. 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
Correct Answer: Option (c)
6. The respiratory pigment in human beings is:
(a) Carotene
(b) Chlorophyll
(c) Haemoglobin
(d) Mitochondria
Correct Answer: Option (c)
7. What is the function of the pituitary gland?
(a) To develop sex organs in males
(b) To stimulate growth in all organs
(c) To regulate sugar and salt levels in the body
(d) To initiate metabolism in the body
Correct Answer: Option (b)
8. A female is suffering from an irregular menstrual cycle. The doctor prescribed her some hormonal tablets. Which option shows that the hormone she lacks in her body is from the endocrine gland?
(a) Oestrogen
(b) Testosterone
(c) Adrenalin
(d) Thyroxin
Correct Answer: Option (a)
9. Which parts of the brain control blood pressure?
(a) Spinal cord, skull, hypothalamus
(b) Cord, skull, cerebrum
(c) Pons, medulla, cerebellum
(d) Pons, medulla, pituitary
Correct Answer: Option (c)
