CBSE Plus 1 Biology Science Study Materials, Online Learning, Question Papers, Classnotes, Practice Test, MCQ | Smartindia Educational Program : www.smartindia.net.in

Question-1
Oxygenic photosynthesis occurs in:

(A) Chromatium	(B) Oscillatoria
(C) Rhodospirillum	(D) Chlorobium

Question-2
Molecular weight of chlorophyll-b molecule is

(A) 807	(B) 873
(C) 907	(D) 910

Question-3
The first step of photosynthesis is ____________.

(A) excitation of electron of chlorophyll by a photon of light	(B) formation of ATP
(C) attachment of CO₂ to 5 carbon sugar	(D) ionisation of water

Question-4
In sugarcane plant¹⁴CO₂ is fixed in malic acid, in which the enzyme that fixes CO₂ is:

(A) Fructose phosphate	(B) Ribulose biphosphate carboxylase
(C) Phosphoenol pyruvic acid carboxylase	(D) Ribulose phosphate kinase

Question-5
The light rays reflected by chlorophyll are

(A) Red	(B) Blue
(C) Green	(D) Yellow

Question-6
Stroma in the chloroplasts of higher plants contains:

(A) Light independent reaction enzymes	(B) Light dependent reaction enzymes
(C) Ribosomes	(D) Chlorophyll

Question-7
A cell that lacks chloroplast does not

(A) Evolve carbon dioxide	(B) Liberate oxygen
(C) Require water	(D) Utilise carbohydrate

Question-8
During photorespiration, the oxygen consuming reaction occur in:

(A) Stroma of chloroplasts and peroxisomes	(B) Grana of chloroplasts and peroxisomes
(C) Stroma of chloroplasts	(D) Stroma of chloroplasts and mitochondria

Question-9
Green plastids seen in the cytoplasm

(A) Chromoplast	(B) Chloroplast
(C) Eryoplast	(D) Mesophyll

Question-10
Emerson effect explains the phenomenon of

(A) Transpiration	(B) Respiration
(C) Photosynthesis	(D) Absorption of water by roots

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