MINERAL NUTRITION

MINERAL NUTRITION

1. Essential macro nutrients are

a. Absorbed from soil b. Manufactured during photosynthesis

c. Produced by enzymes d. Produced by growth hormones

2. Which one of these is not a trace element?

a. Cu b. K c. Mn d. Zn

3. Chlorosis in plants occurs because

a. Lesser light available to them b. Darkness c. Excessive respiration

d. Deficiency of Mg and Fe

4. Which nutrient helps in plant growth by stimulating the production of auxin?

a. Mn b. Zn c. Mn d. Cu

5. In plants common symptoms caused by deficiency of P,K,Ca, Mg is the-

a. Bending of leaf tips b. Formation of anthocyanin c. Poor development of vasculature

d. Necrosis

6. Dath of root tip is due to the deficiency of ;

a. P b. N c. Ca d. C

7. Which of the following is a Macro nutrient?

a. Mn b. Mg c. Zn d. Cu

8. Which of the following mineral is lost in ocean as is ecologically limiting factor?

a. Ca b. K c. Mg d. Fe

9. The element which is required in largest quantity by plant is

a. S b. Cs c. P d. N

10. Chlorophyll contains :

a. Fe b. Mg c. K d. Mn

11. Which of the following element is not necessary for the normal growth of the plant?

a. Mg b. Fe c. Ca d. Pb

12. Which of the following is not a macro nutrient?

a. Mg b. Ca c. Mn d. P

13. Micro nutrients are

a. Less important in nutrition that the macro nutrients.

b. As important in nutrition as the macro nutrients

c. Called ‘minor’ as they play a minor role in plant nutrition

d. None of the above

14. Which of the following elements is a component of the middle lamella in plant cells?

a. K b. Ca c. Mn d. Fe

15. A trace element is the element that-

a. us radioactive and can be traced using a Geiger counter

b. is required in minute amount

c. Draws other elements out of protoplasm

d. was one of the first discovered in the protoplasm

16. Which element is commonly found in nucleic acid, ATP, NADP etc?

a. Calcium b. Phosphorus c. Magnesium d. Iron

17. If a dry specimen of a plant is taken in a crucible and heated at about 600c, then grey

coloured powder left in the crucible is called

a. Plant ash b. Dry weight c. Wilting percentage d. Moisture content

18. Hydroponics is the term used for

a. Sandy cultivation b. cultivation of plants in agargel

c. Soil less cultivation d. cultivation is laboratory

19. Which of the following is essential for the synthesis of IAA?

a Ca b. Zn c. Fe d. K

20. Which of the following is required for the photolysis of water?

a. Ca b. Cl c. Na d. S

21. Chlorosis occurs due to the deficiency of

a. Mg b, Cl c. Ca d. Cu

22. Which of the following elements is involved in N-Metabolism?

a. Zn b. S c. Mo d. Mn

23. Plants absorb N in the form of

a. Nitrites b. Nitrates c. Ammonia d. N-gas

24. Plastocyanin is a protein containing

a. Mo b. Zn c. Fe d. Cu

25. Cytochrome oxidise contains

a. Mg b. Fe c. Hg d. Co


ANSWERS

1. a 2. b 3. a & d 4. b 5. d 6. c 7. b 8. b 9. d 10. b
11. d 12. c 13 .b 14. b 15. b 16. b 17. b & a 18. c 19. b 20. b
21. a b d 22. c 23. b 24. d 25. b