Biology Mcqs

Of the following, which one light – gathering?

• (A)  Antenna complex
• (B)  Reaction centre
• (C)  Photosystem
• (D)  None of these

Answer

Submitted By :Ali Uppal

Thylakoids in chloroplasts are stacked into___________?

• (A)  Grana
• (B)  Stroma
• (C)  Nucleus
• (D)  None of these

Answer

Submitted By :Ali Uppal

NADPH2 provides___________?

• (A)  assimilatory power
• (B)  chemical energy
• (C)  energized electrons
• (D)  All of these

Answer

Submitted By :Ali Uppal

Light reaction takes place on/in____________?

• (A)  Thylakoid
• (B)  Storma
• (C)  Chloroplast
• (D)  Grana

Answer

Submitted By :Ali Uppal

From one pyruvate passing through Kreb’s cycle, how many NADH are formed?

• (A)  1
• (B)  2
• (C)  3
• (D)  4

Answer

Submitted By :Ali Uppal

In Anaerobic respiration only __________ % of the energy present within the chemical bond of glucose is converted into ATP?

• (A)  1%
• (B)  2%
• (C)  3%
• (D)  4%

Answer

Submitted By :Ali Uppal

Final acceptor of electrons in respiratory chain is____________?

• (A)  NADH
• (B)  Cytochrome a3
• (C)  Water
• (D)  Oxygen

Answer

Submitted By :Ali Uppal

In which of the following component of the body, lactic acid fermentation takes place?

• (A)  Brain
• (B)  Heart
• (C)  Liver
• (D)  Muscles

Answer

Submitted By :Ali Uppal

The most important photosynthetic pigment is ___________?

• (A)  Chlorophyll a
• (B)  Chlorophyll b
• (C)  Xanthophyll
• (D)  Carotenes

Answer

Submitted By :Ali Uppal

The chlorophyll molecule is embedded in the core of thylakoid membrane which acts as___________?

• (A)  Hydrophilic
• (B)  Hydrophobic
• (C)  Both of these
• (D)  None of these

Answer

Submitted By :Ali Uppal