Free Mineral Nutrition (Daily Quiz: 2) NEET Biology Questions & Answers with Detailed Explanation & Full Review

Question-1

Enzyme involved in nitrogen assimilation

(a) nitrate reductase

(b) transferase

(c) nitrogenase

(d) transaminase

Question-2

Assertion:
Iron takes part in the electron transport system of mitochondria.
Reason:
Iron has no role in chlorophyll synthesis.

(a) If both the assertion and reason are true but the reason is not a correct explanation of the assertion.

(b) If both the assertion and the reason are true and the reason is a correct explanation of the assertion.

(c) If the assertion is true but the reason is false.

(d) If both the assertion and reason are false.

Question-3

Reaction carried out by N2 fixing microbes include

1. $2NH_{3}+ 3O_{2} → 2NO_{2}^{-} + 2H^{+} + 2H_{2}HO$..(i)
2. $2NO_{2} + O_{2} → + 2NO_{3}$ ...(ii)

Which of the following statements about these equations is not true?

(a) Step (ii) is carried out by Nitrobacter

(b) Both steps (i) and (ii) can be called nitrification

(c) Step (i) is carried out by Nitrosomonas or Nitrococcus

(d) Bacteria carrying out these steps are usually photoautotrophs

Question-4

Fats of $NH_3$ formed during biological nitrogen fixation is

(a) The $NH_4^{+}$ ion formed is used for reductive amination

(b) $NH_3$ protonated to form

(c) Glutamic acid is formed under reductive amination to undergo transamination.

(d) All of these

Question-5

Find the true/false statement from the following:

1. Only 50 elements are found in different plants.
2. In hydroponics, the nutrient solution must be adequately aerated to obtain optimum growth.
3. Some plant species accumulate selenium.
4. By hydroponics essential elements were identified and their deficiency symptoms were also discovered.

(a) FFTT

(b) FTTT

(c) FTFT

(d) FFFT