Role of Micronutrients

Q. Which of the following micronutrient is involved in synthesis of auxin?

1. Fe
2. Zn
3. Mo
4. Ni

Q.

How does soybean export fixed nitrogen?

Q.

$Z{n}^{2+}$ is an activator of

1. Phosphoenolpyruvate carboxylase

2. Alcohol dehydrogenase

3. Oxygenase

4. Nitrogenase

Q.

Select the correctly matched pair.

1. Manganese- Needed in the splitting of water to liberate oxygen during photosynthesis

2. Magnesium- Needed during the formation of mitotic spindle

3. Calcium- Plays a role in the opening and closing of stomata

4. Zinc- Helps to maintain ribosome structure

Q.

What does the Q in CoQ10 stand for?

Q.

Why is nitrogen important for plants?

Q. Element necessary for the uptake as well as utilisation of calcium is

1. $B$
2. $P$
3. $S$
4. $Mn$

Q. Regarding mineral nutrition in plants, which one of the following statements is/are incorrect?
(a) Deficiency of boron inhibits pollen germination
(b) Deficiency of potassium affects the opening and closing of stomata
(c) $Z{n}^2$${}^{+}$ is an activator of RuBisCO
(d) Deficiency of nitrogen leads to delay in flowering

1. a, d
2. b, c
3. a, b, c, d
4. only c

Q.

Select the correctly matched pair.

1. Zinc - Helps to maintain ribosome structure

2. Magnesium - Needed during the formation of mitotic spindle

3. Calcium - Plays a role in the opening and closing of stomata

4. Manganese - Needed in the splitting of water to liberate oxygen during photosynthesis

Q. __________ element is needed for the synthesis of auxins.

1. Zinc
2. Molybdenum
3. Copper
4. Potassium

Q. Identify the incorrect match from the following

1. Chlorine - helps in oxygen evolution
2. Boron - Pollen germination
3. Molybdenum - Carbohydrate translocation
4. Zinc - Auxin synthesis

Q. The deficiencies of micronutrients, not only affects growth of plants but also vital functions such as photosynthesis and electron transport in mitochondria. Among the list given below, which group of three elements affect both photosynthesis and electron transport in mitochondria?

1. Cu, Mn, Fe
2. Co, Ni, Mo
3. Ca, K, Na
4. Mn, Co, Ca

Q. Which among the following is a function of Boron?

1. Carbohydrate translocation
2. Pollen germination
3. Membrane functioning
4. All of these

Q.

Match the following:

$\begin{array}{cc}\text{Column - I}& \text{Column - II}\\ A.\text{Manganese}& 1.\text{Vitamin A production}\\ B.\text{Copper}& 2.\text{Role in Nitrogen fixation}\\ C.\text{Boron}& 3.\text{Photolysis of water}\\ D.\text{Molybdenum}& 4.\text{Acts as antifungal}\\ & 5.\text{Required for pollen germination}\end{array}$

1. A - 3, B - 1, C - 5, D - 4

2. A - 2, B - 1, C - 5, D - 3

3. A - 3, B - 1, C - 5, D - 2

4. A - 3, B - 1, C - 2, D - 5

Q. __________ element is needed for the synthesis of auxins.

1. Molybdenum
2. Potassium
3. Zinc
4. Copper