Nutrition in plants MCQ with Answers:
1. Which of the following is a nutrient?
A. Protein
B. Fat
C. Carbohydrates
D. All of these
Answer: D
2. Which of the following options, all of the macromineral elements necessary for plants are_______
A. P, N, Mn, K
B. Ca, N, P, K
C. Fe, S, P, N
D. N, S, H, P
Answer: B
3. The food-making process in plants is called_______
A. glycolysis
B. photosynthesis
C. photolysis
D. chemosynthesis
Answer: B
4. A drop in temperature causes a slowdown in the uptake of mineral elements by plants because________
A. Reduced breathing intensity
B. Reduced the activity of some proteins
C. Reduced transpiration intensity
D. Both A and B
Answer: D
5. Which part of the plant is called its food factory?
A. Fruits
B. Seeds
C. Leaves
D. Flowers
Answer: C
6. Green pigment present in the leaves is called
A. hemoglobin
B. globulin
C. albumin
D. chlorophyll
Answer: D
7. The transport of mineral nutrients in the northern winter evergreen plants is weakened or almost stopped, mainly because_____
A. Reduced absorption
B. Reduced transpiration
C. Reduced photosynthesis
D. decreased respiration
Answer: B
8. Tiny pores present on the surface of leaves through which gaseous exchange occurs are called
A. stomata
B. guard cells
C. food holes
D. gas holes
Answer: A
8. Nitrogen and phosphorus are taken up by plants from the soil and transported to mesophyll cells, mainly for synthesis______
A. Glucose
B. Phospholipids
C. nucleic acid
Both B and C
Answer: D
10. The essential mineral elements for plants are mainly absorbed from the soil by the roots. External conditions that affect the uptake of mineral elements by roots include______
A. soil aeration
B. soil temperature
C. soil moisture
D. soil microorganisms
E. All of these
Answer: E
11. Among the numerous mineral elements to determine the elements necessary for plant life, the general method used is_________
A. paper chromatography
B. Microscopic observation
C. Isotope labeling
D. solution culture
Answer: D
12. In plant cells, the inorganic salt ions necessary for the synthesis of chlorophyll are:
A. Fe 2+
C. Ca 2+
C. K 2+
D. Mg 2+
Answer: D
13. False statement about elements in plant cells________
A. The amount of Si absorbed by tomato and rice roots is equal
B. The four most abundant elements in cells are C, O, H, and
N. ATP is required for the uptake of inorganic ions by plant roots through active transport
. Rhizobium symbiotic with legumes can provide N for the growth of legumes
Answer: A
14. The end products of photosynthesis are_______
A. carbohydrates, oxygen
B. carbohydrates, hydrogen
C. carbohydrates, water vapors
D. carbohydrates, oxygen, and water vapors
Answer: A
15. Which of the following crops should not be grown in the absence of boron in the soil_________
A. Cabbage
B. soybean
C. sugarcane
D. rose flower
Answer: B
16. Supplementing magnesium at the right time can make green plants grow normally, because__________
A. Magnesium is an important element in the composition of chlorophyll
B. Magnesium is a raw material for protein synthesis
C. Magnesium helps plants absorb water
D. Magnesium is the raw material for the synthesis of nucleic acids
Answer: A
17. Regarding the absorption of water and the absorption of mineral element ions, the following statement is false________
A. The absorption of water can transport the mineral element ions away in time, thus promoting the absorption of mineral element ions
B. The absorption of mineral element ions increases the concentration of cell fluid, which can promote the absorption of water
C. The main absorption site of mineral element ions is the same as the main absorption site of water
D. The absorption of water and the absorption of mineral element ions are two relatively independent processes
Answer: A
18. The whole life process of plant leaves from young to old_______
A. Export of organic matter is also imported, and only mineral elements are imported
B. Only organic matter is exported, and only mineral elements are imported
C. Only organic matter is exported, and mineral elements are also exported
B. Organic matter and mineral elements are both input and output
Answer: D
19. Which of the following substances can be synthesized from N absorbed by plants from the soil_______
A. Deoxyribose
B. glucose
C. cellulose
D. amino acid
Answer: D
20. Which of the following minerals helps in improving both the quantity and quality of dry matter in leafy vegetables and protein in grain crops?
A. Iron
B. Copper
C. Nitrogen
molybdenum
Answer: C
21. Which of the following statements is false about nutrition?
A. Nitrogen and phosphorus are macronutrients
B. Plant hormones are nutrients
C. Manganese and molybdenum are micronutrients
D. Nutrition provides energy for carrying out various functions.
Answer: B