Question # 1

The first in the Krebs cycle is the union of acetyl CoA with Oxaloacetate to form.

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Citrate

Fumarate

succinate

Acetate

Total photosynthesis is carried out by the terrestrial plants in about.

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15%

10%

20%

22%

The number of oxidation steps during one Krebs. cycle are.

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02

03

04

05

During respiratory chain co enzyme Q is oxidized.

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Cytochrome a

Cytochrome b

Cytochrome c

Cytochrome a3

Quantitative study of energy relationship in biological system is called.

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Bioenergetics

Biodegradation

Biosynthesis

Biotechnology

Magnesium is an important untrient ion in green plants as it is an essential component of

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Cell sap

Protein

Chlorophyll

Glucose

Which one is not the phase of Calvin cycle.

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Carbon fixation

Reduction

Regeneration of CO2 acceptor

Phosphorylation

The mechanism for ATP synthesis is

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Chemosynthesis

Photosynthesis

Chemiosmosis

Phosphorylation

Engelmann used in his experiment in 1883

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sprogyra

Aerobic bacteria

Anaerobic bacteria

Both a and b

The moment of plants when carbon di oxide required by photosynthesis is termed as.

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Compensation point

Homeostasis

Chemisoris

Action spectrum

In respiratory chain NAHD is oxidized by

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Co factor

co enzyme

Cytochome 'b'

Cytochrome 'C'

When a green plant performs photosynthesis at it maximum rate

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The rate of water loss in high

The water content of the plant will be low

The energy content of the plant will be low

The energy content will be unaffected

The power house of the cell is

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Ribosome

RER

SER

Mitochondria

Van Niel hypothesized that source of oxygen during photosynthesis is.

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Water

NADP

Chlorophyll

Carbon di oxide

Chlorophyll 'a' of photosystem I absorbs maximum light of.

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670 nm

700 nm

680 nm

690 nm

Glycolysis is the break down of

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Fructose

Glucose

Lactose

Maltose

During the dark reaction of photosynthesis, the main process that occurs is

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Release of oxygen

Energy absorption by the chlorophyll

Adding of hydrogen to the carbon dioxide

Formation of ATP

The first step of krebs cycle is union of acetyl co A with oxaloacetate to form.

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Isocitrate

Citrate

Malate

Alpha ketoglutarate

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Biology Fsc Part 1 Chapter 11 Online Test MCQs With Answers

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