Nutrient Requirement in Plants

Q.

Which of the following is not an inhibitory substance governing seed dormancy?

1. Phenolic acid.

2. Para – ascorbic acid.

3. Gibberellic acid.

4. Abscisic acid.

Q.

Name any two insectivorous plant.

Q. Which of the following nutrient(s) is/are important for the production of chlorophyll?

1. Iron
2. Magnesium
3. Manganese
4. Zinc

Q. Which of the following nutrient(s) play(s) an important role in the production of plant hormones?

1. Manganese
2. Zinc
3. Magnesium
4. Iron

Q.

The components of food that are necessary for our survival and growth are called __.

Q. Match the following nutrients with there correct functions.
$\begin{array}{cc}\text{Column A}& \text{Column B}\\ \left(a\right)\text{Nitrogen}& \left(i\right)\text{Necessary for metabolic activities}\\ \left(b\right)\text{Phosphorus}& \left(ii\right)\text{Conversion of light energy into chemical energy}\\ \left(c\right)\text{Potasssium}& \left(iii\right)\text{Component of proteins, chlorophyll and cytoplasm}\\ \left(d\right)\text{Magnesium}& \left(iv\right)\text{Production of chlorophyll}\end{array}$

1. a - ii; b - i; c - iii; d - iv
2. a - iii; b - ii; c - iv; d - i
3. a - iii; b -ii; c - i; d - iv
4. a - iv; b - i; c - ii; d - iii

Q.

Which of the following is not a macro nutrient?

1. Calcium

2. Potassium

3. Manganese

4. Nitrogen

Q. Identify the reason(s) why nutrients are essential for survival.

1. It helps to fight against diseases.
2. It regulates growth and development.
3. It helps to repair damaged tissues.
4. It helps to perform physical activities.

Q. Nitrogen fixing bacteria convert atmospheric nitrogen into

1. Freely in the soil
2. In the roots of plants
3. In the humus of the soil
4. In water

Q. is one of the primary nutrients required by plants.

1. Nitrogen
2. Iron
3. Calcium

Q. Identify the important nutrients required by crops.

1. Calcium
2. Magnesium
3. Nitrogen
4. Water
5. Phosphorus
6. Potassium
7. Iron
8. Sodium
9. Gold
10. Chlorine

Q. Rhizobium is found in the root nodules of

1. Beans
2. Carrots
3. Peanuts
4. Potatoes
5. Tomato
6. Green peas
7. Soyabean
8. Lentils