Tag: types of chlorophyll

Questions Related to types of chlorophyll

Water soluble vitamins are

botany photosynthesis types of chlorophyll pigments photosynthetic pigments

  1. C and D

  2. A and C

  3. B and C

  4. A and D

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Correct Option: C

Carotenoids are _____________.

botany photosynthesis types of chlorophyll pigments photosynthetic pigments

  1. Glycoproteins

  2. Hydrocarbons

  3. Polysaccharids

  4. Lipoproteins

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Correct Option: A
Accessory photosynthetic pigments in most green plants are 
botany photosynthesis types of chlorophyll pigments photosynthetic pigments

  1. Chlorophyll $a$

  2. Chlorophyll $b$

  3. Carotenoids and xanthophylls

  4. Both (b) and (c)

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Correct Option: D
Explanation:
Chlorophyll a is found in almost all photosynthetic plants except bacteria it is called primary photosynthetic pigment because it performs primary reactions of photosynthesis which involve the conversion of light energy into chemical energy. other photosynthetic pigments like chlorophyll b, xanthophylls and carotenes are called accessory pigments. They absorb light energy of different wavelengths, broaden the spectrum of light absorption and hand over the energy to chlorophyll aq through electron spin resonance and also protect chlorophyll a from photo-oxidation.
So the correct option is 'both (b) and (c)'.

Which of the following are water soluble pigments? 
A. Chlorophyll A
B. Chlorophyll B
C. Carotenids
D. Phycobilins 

botany photosynthesis types of chlorophyll pigments photosynthetic pigments

  1. A and B (2)

  2. C and D

  3. Only D

  4. Only C

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Correct Option: A

The chlorophyll pigment found in green sulphur bacteria is

botany photosynthesis types of chlorophyll pigments photosynthetic pigments

  1. Bacteriochlorophyll

  2. Bacterioviridin

  3. Phycocyanin

  4. Phycoerythrin

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Correct Option: A

The photosynthetic pigment found in red algae is 

botany photosynthesis types of chlorophyll pigments photosynthetic pigments

  1. Phycocyanin

  2. Carotene

  3. Phycoerythrin

  4. both (a) and (b)

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Correct Option: A

How many chlorophyll molecules are found in a quantasome?

botany photosynthesis types of chlorophyll pigments photosynthetic pigments

  1. $295$

  2. $500$

  3. $230$

  4. $100$

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Correct Option: A

The empirical formula for chlorophyll 'a' is ___________________.

botany photosynthesis types of chlorophyll pigments photosynthetic pigments

  1. $C _{35}H _{72}O _{5}N _{4}Mg$

  2. $C _{35}H _{70}O _{6}N _{4}Mg$

  3. $C _{55}H _{72}O _{5}N _{4}Mg$

  4. $C _{54}H _{70}O _{6}N _{4}Mg$

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Correct Option: C
Explanation:

Chlorophyll a is bluish-green with empirical formula of C55H72O5N4Mg

So the correct option is C.

Reserve food material in plants is in form is _______.

botany photosynthesis types of chlorophyll pigments photosynthetic pigments

  1. Cellulose

  2. Starch

  3. Pectin

  4. Sucrose

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Correct Option: B
Explanation:

Plants is the kingdom of organisms that possess chlorophyll. They synthesis their food by the process called photosynthesis. Starch is synthesized during the process of photosynthesis and stored as reserved food material.

Bacteriochlorophyll differs from chlorophyll 'a' in having

botany photosynthesis types of chlorophyll pigments photosynthetic pigments

  1. One pyrole ring with one hydrogen

  2. One pyrole ring with two hydrogen

  3. One pyrole ring with three hydrogen

  4. One pyrole ring with four hydrogen

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Correct Option: B
Explanation:

Purple sulphur bacteria and non-sulphur bacteria contain bacteria-chlorophyll,which is having 2H-atoms more than chl.a and it absorb 850-950 nm(infra-red) wavelength of light.