Question

1. Which of the following are energy foods?
(a) Carbohydrates and fats
(b) Proteins and mineral salts
(c) Vitamins and minerals
(d) Water and roughage

2. In which mode of nutrition an organism derives its food from the body of another living organism without killing it?
(a) Saprotrophic nutrition
(b) Parasitic nutrition
(c) Holozoic nutrition
(d) Autotrophic nutrition

3. The mode of nutrition found in fungi is:
(a) Parasitic nutrition
(b) Holozoic nutrition
(c) Autotrophic nutrition
(d) Saprotrophic nutrition

4. The site of photosynthesis in the cells of a leaf is
(a) chloroplast
(b) mitochondria
(c) cytoplasm
(d) protoplasm

5. In amoeba, food is digested in the:
(a) food vacuole
(b) mitochondria
(c) pseudopodia
(d) chloroplast

6. Which region of the alimentary canal absorbs the digested food?
(a) Stomach
(b) Small intestine
(c) Large intestine
(d) Liver

7. The contraction and expansion movement of the walls of the food pipe is called:
(a) translocation
(b) transpiration
(c) peristaltic movement
(d) digestion


8. 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

9. The exit of unabsorbed food material is regulated by
(a) liver
(b) anus
(c) small intestine
(d) anal sphincter

10. 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


11. The breakdown of pyruvate to give carbon dioxide, water and energy takes place in
(a) cytoplasm
(b) mitochondria
(c) chloroplast
(d) nucleus

12. Glycolysis process occurs in which part of the cell?
(a) Cytoplasm
(b) Nucleus
(c) Mitochondria
(d) Chloroplast

13. Name the pores in a leaf through which respiratory exchange of gases takes place.
(a) Lenticels
(b) Vacuoles
(c) Xylem
(d) Stomata

14. The respiratory pigment in human beings is:
(a) carotene
(b) chlorophyll
(c) haemoglobin
(d) mitochondria

15. A blood vessel which pumps the blood from the heart to the entire body:
(a) artery
(b) capillary
(c) Vein
(d) Haemoglobin

16. Name a circulatory fluid in the human body other than blood.
(a) Platelets
(b) RBC
(c) Lymph
(d) Plasma

17. The enzymes pepsin and trypsin are secreted respectively by.
(a) Stomach and pancreas
(b) Salivary gland and stomach
(c) Liver and pancreas
(d) Liver and salivary gland

18. Which of the following help in protecting the inner lining of the stomach from the harmful effect of hydrochloric acid?
(a) Mucus
(b) Pepsin
(c) Trypsin
(d) Bile

19. Sometimes we get painful cramps in our leg muscles after running for a long time due to the accumulation of:
(a) Hydrochloric acid
(b) Fat
(c) Carbon dioxide
(d) Lactic acid

20. The vein which brings clean blood from the lungs into the heart is known as:
(a) Pulmonary vein
(b) Hepatic vein
(c) Superior vena cava
(d) Pulmonary artery​

Answer 1

Answer:

please one by one questions!

please one by one!

Answer 2

1)carbhoyadrates and fats