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Light Absorbing Pigments

Which one of ...

Question

Which one of the following acids is a derivative of caretenoids?

A

Indole-butyric acid

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B

Indole-3-acetic acid

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C

Giberellic acid

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D

Abscisic acid

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Solution

The correct option is D Abscisic acid
Abscisic acid is a terpernoid, i.e a derivative of steroid. Indole butyric acid and indole-3-acetic acid are auxins, which are weak organic acids. Gibberellic acid (gibberellin) is a terpene.

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Match the following list of bacteria and their commercially important products:

Bacterium Product

(i) Aspergillus niger (a) Lactic acid

(ii) Acetobacter aceti (b) Butyric acid

(iii) Clostridium butylicum (c) Acetic acid

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Match the following list of bacteria and their commercially important products:

Bacterium Product

(i) Aspergillus niger (a) Lactic acid

(ii) Acetobacter aceti (b) Butyric acid

(iii) Clostridium butylicum (c) Acetic acid

(iv) Lactobacillus (d) Citric acid

Q. Match the following columns and select the correct option.

	Column I		Column II
(a)	Clostridium butylicum	(i)	Citric acid
(b)	Aspergillus niger	(ii)	Acetic acid
(c)	Acetobacter aceti	(iii)	Butyric acid
(d)	Lactobacillus	(iv)	Lactic acid

Q. Match the following (column-I with column-II):

	Column I (Microbes)		Column II (Organic acid)
a.	Aspergillus niger	(i)	Butyric acid
b.	Clostridium butylicum	(ii)	Citric acid
c.	Acetobacter aceti	(iii)	Lactic acid
d.	Lactobacillus	(iv)	Acetic acid

Q. Which one of the following acids is a derivative of carotenoids ?

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