Deficiency of Nutrients

Q. Chlorosis is caused by the deficiency of

1. Fe
2. Ca
3. Cu
4. Bo

Q. Which element is required for the synthesis of auxin?

1. Cu
2. Zn
3. Mo
4. Mn

Q.

Name at least five different deficiency symptoms in plants. Describe them and correlate them with the concerned mineral deficiency.

Q.

Why is that in certain plants deficiency symptoms appear first in younger parts of the plant while in others they do so in mature organs?

Q.

The activator for enzymes RuBisCO and PEPcase is

1. micronutrient

2. macronutrient

3. beneficial element

4. trace element

Q.

Write the difference between Guttation and Bleeding in plants (cause).

Q.

Write the uses and deficiency symptoms of nitrogen in plants.

Q.

The elements involved in delay of flowering if their concentration is low are

1. Nitrogen

2. Potassium

3. Radium

4. Molybdenum

Q. Choose the incorrect match:

1. $\begin{array}{cccc}& \text{Symptoms}& & \text{Deficiency}\\ & \text{Chlorosis}& \text{-}& N,K,Mg,S,Fe,Mn\end{array}$
2. $\begin{array}{cccc}& \text{Symptoms}& & \text{Deficiency}\\ & \text{Inhibition of cell division}& \text{-}& N,K,S,Mo\end{array}$
3. $\begin{array}{cccc}& \text{Symptoms}& & \text{Deficiency}\\ & \text{Delay flowering}& \text{-}& N,S,Mo\end{array}$
4. $\begin{array}{cccc}& \text{Symptoms}& & \text{Deficiency}\\ & \text{Necrosis}& \text{-}& B,Co\end{array}$

Q. Phosphate of a nucleotide is attached to carbon atom of its pentose sugar

1. 5'
2. 1'
3. 3'
4. 2'

Q. The deficiency disease which results in loss of chlorophyll from plant is called .

1. chlorosis
2. necrosis
3. whitening
4. rot

Q. Plants deficient of element zinc show its effect on the biosynthesis of which plant growth hormone:

1. Ethylene
2. Abscisic acid (ABA)
3. Cytokinin
4. Auxin

Q.

'Little leaf' is caused due to the deficiency of

1. Boron

2. Zinc

3. Copper

4. Phosphorus

Q. Select the correct option-
Assertion: When there is a deficiency of relatively mobile elements, the deficiency symptoms appear first in young tissues.
Reason: Relatively mobile elements like nitrogen, phosphorus etc are transported from young tissues to old senescing tissues

1. Both assertion & reason are correct but the reason is not the correct explanation of assertion.
2. Both assertion & reason are correct and the reason is the correct explanation of assertion.
3. Assertion is correct but the reason is incorrect
4. Both assertion & reason are incorrect

Q. IARI has developed different varieties of ______, that are enriched with vitamin A, iron and calcium.

1. bathua
2. spinach
3. lablab beans
4. carrots

Q. Translocation of which element in shoot apex is inhibited by manganese?

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

Q. Which of the following is a group of micronutrients for plants?

1. Fe, Mn, Cu, O, C
2. Cu, B, Cl, Fe, Ca
3. Ca, Mg, Fe
4. Fe, Mn, Cu, Mo, Zn

Q.

What are the examples of macronutrients and micronutrients?

Q.

Why are vitamins and minerals sometimes called micronutrients?

Q. The macronutrient which is an essential component of all organic compounds, yet not obtained by plants from soil is

1. nitrogen
2. carbon
3. phosphorus
4. magnesium

Q.

Does endothecium absorb or loose water during dehiscence of anther?

Q. In eukaryotes which cell organelle is the site of glycosylation of proteins?

1. RER
2. Peroxisome
3. Golgi bodies
4. SER

Q.

Protein synthesis in an animal cell takes place in ________

1. Cytoplasm

2. Ribosomes attached to the nucleus

3. Both in the nucleolus and in the cytoplasm

4. both in the cytoplasm as well as in mitochondria

Q.

If a plant shows a symptom which could develop due to deficiency of more than one nutrient, how would you find out experimentally, the real deficient mineral element?

Q. Buffer system of blood is :

1. Haemoglobin
2. Oxygen
3. Sodium carbonate
4. Carbonic acid

Q.

Cork is also known as

1. Phellem

2. Phellogen

3. Phelloderm

4. Secondary cortex.

Q.

Is sodium a micronutrient?

Q. A gardener was working in his field. He noticed that some of his plants have yellow leaves which he has never seen before. He called his friend who was an agricultural scientist. The scientist asked him to send the soil sample to his lab. After a few days, he got the following results:

1. The soil was deficient in Mg, Cu, Ca, K
2. The soil was deficient in N, K, S, Mo
3. The soil was deficient in N, Mg, Ca, K, Mo, Se, B, Cl
4. The soil was deficient in Mn, Mg, Fe, Zn, Mo, N, K, S

Q. Deficiency symptoms caused due to the deficiency of Mg and K are

1. Chlorosis

2. Necrosis

3. Both A and B

4. Inhibition of cell division

Q. Phosphorous and nitrogen ions generally get depleted in soil because they occur as

1. negatively charged ions
2. positively charged ions
3. positively charged ions
4. Neutral ions