Description : The first acceptor of electrons from an excited chlorophyll molecule of photosystem II is (a) iron-sulphur protein(b) ferredoxin (c) quinone (d) cytochrome.
Last Answer : (c) quinone
Description : Electrons from excited chlorophyll molecule of photosystem II are accepted first by
Last Answer : Electrons from excited chlorophyll molecule of photosystem II are accepted first by A. Quinone B. Ferredoxin C. Cytochrome-b D. Cytochrome-f
Description : In photosystem I, the first electron acceptor is (a) an iron-sulphur protein (b) ferredoxin (c) cytochrome (d) plastocyanin.
Last Answer : (a) an iron-sulphur protein
Description : Electrons are excited in photosystem I. With what do these electrons combine to produce an energy-carrying molecule?
Last Answer : NDHP+
Description : The first acceptor of electrons from an excited chlorophyll molecule of phtosystem II is
Last Answer : The first acceptor of electrons from an excited chlorophyll molecule of phtosystem II is A. Quinone B. Cytochorme C. Iron-sulfur protein D. Ferredoxin
Description : Photosystem II occurs in (a) stroma (b) cytochrome (c) grana (d) mitochondrial surface.
Last Answer : (c) grana
Description : A molecule in plants comparable to haemoglobin in animals is – (1) Cytochrome (2) Cellulose (3) Chlorophyll (4) Carotene
Last Answer : (3) Chlorophyll Explanation: Hemoglobin is the, ironcontaining oxygen-transport met alloprotein in the red blood cells of all vertebrates. Similarly, Cytochromes are, in general, membrane-bound ... helm, groups and are primarily responsible for the generation of ATP via electron transport.
Description : A molecule in plants comparable to haemoglobin in animals is (1) Cytochrome (2) Cellulose (3) Chlorophyll (4) Carotene
Last Answer : Chlorophyll
Description : After electrons leave photosystem II, they move through a chain of three protein complexes. Where do they go after that electron transport chain?
Last Answer : Photosystem I (APEX)
Description : Which one of the following is correct sequence for the flow of electrons in the energy-fixing reactions of photosynthesis? a. Water-photosystem 1-photosystem II-NADPH b. Photosystem I-NADPH-water- ... --- photosystem II------ photosystem I-NADPH d. NADPH-photosystem Il-photosystem I-water
Last Answer : d. NADPH—photosystem Il—photosystem I—water
Description : What molecule carries the high energy electrons excited by the sunlight into the Calvin Cycle.?
Last Answer : Feel Free to Answer
Description : Which one of the following statements is WRONG? (A) A singlet or triplet state may result when one of the electrons from the HOMO is excited to higher energy levels (B) In an ... the electron from the singlet excited state returns to ground state, the molecule always shows fluorescence phenomenon
Last Answer : (C) Triplet excited state is more stable than the singlet excited state
Description : Blood is red in colour due to the presence of - (1) Cytochrome (2) Chlorophyll (3) Hemocyanin (4) Haemoglobin
Last Answer : (4) Haemoglobin Explanation: The red color of blood comes from the hemoglobin that makes up the majority of the mass of the cell, which allows the blood cell to carry oxygen around the body. The ... hemoglobin makes up so much of the blood cell that its red color overpowers the color of the plasma.
Description : Which pigment absorbs the red and far-red light? (a) Cytochrome (b) Phytochrome (c) Carotenoids (d) Chlorophyll
Last Answer : (b) Phytochrome
Description : Mg is a component of (a) chlorophyll (b) cytochrome (c) haemoglobin (d) haemocyanin.
Last Answer : (a) chlorophyll
Description : The photosynthetic pigments used by the green sulfur bacteria and some archaeal species are a. Chlorophyll b. Bacteriochlorophyll c. Cytochrome d. Sulfate
Last Answer : b. Bacteriochlorophyll
Description : Blood is red in colour due to the presence of __________ . (1) Cytochrome (2) Chlorophyll (3) Hemocyanin (4) Haemoglobin
Last Answer : Haemoglobin
Description : Ferredoxin is a constituent of (a) PS I (b) PS II (c) Hill reaction (d) P680.
Last Answer : (a) PS I
Description : Chlorophyll a molecule at its carbon atom 3 of the pyrrole ring II has one of the following (a) carboxylic group (b) magnesium (c) aldehyde group (d) methyl group
Last Answer : d) methyl group.
Description : Toluene undergoes oxidation to give (a) Benzyl alcohol (b) Quinone (c) Benzaldehyde (d) Benzoic acid
Last Answer : Benzoic acid
Description : When chlorophyll absorbs light, what does it gets excited and emits? -Do You Know?
Last Answer : answer:
Description : Main substance involved in transfer of electrons in photosynthesis is (a) Phytochrome (b) Cytochrome (c) FAD (d) Both (a) and (b)
Last Answer : Ans:(b)
Description : Terminal cytochrome of respiratory chain which donates electrons to oxygen is (a) Cyt b (b) Cyt c (c) Cyt a1 (d) Cyt a3.
Last Answer : d) Cyt a3
Description : Explain photosystem I and photosystem II in green plants. -Biology
Description : Photosystem I and Photosystem II are found in
Last Answer : Photosystem I and Photosystem II are found in A. Stroma of chloroplast B. Grana of ... Matrix of mitochondria D. Inner membrane of mitochondria
Description : Photosystem II occurs in
Last Answer : Photosystem II occurs in A. Stroma B. Cytochrome C. Grana D. Mitochondrial surface
Description : Which of the following pairs are correctly matched? (1) 700 nm—Photosystem-I (2) 650 nm—Photosystem-II (3) 690 nm—Photosystem-II (4) 620 nm—Phycocyanin
Last Answer : Ans. ((c))
Description : NADH is produced in:. (a) Photosystem-II (b) Photosystem-I (c) Glycolysis (d) Both (a) and (b)
Description : In photosynthesis, the light-independent reactions take place at (a) photosystem II (b) stromal matrix (c) thylakoid lumen (d) photosystem I
Last Answer : (b) stromal matrix
Description : NADPH2 is generated through (a) photosystem II (b) anaerobic respiration (c) glycolysis (d) photosystem I.
Last Answer : (d) photosystem
Description : Ferredoxin `e^(-)` acceptor is a component of
Last Answer : Ferredoxin `e^(-)` acceptor is a component of A. PS-I B. PS-II C. Hill reaction D. `P_(680)`
Description : Iron is an important component of – a) Siroheme b) Ferredoxin c) Cytochromes d) All of these
Last Answer : d) All of these
Description : Is chlorophyll molecule microscopic?
Last Answer : Need answer
Description : Which element is found in a molecule of chlorophyll?
Last Answer : Magnesium
Description : Magnesium is a constituent metal of – (1) Chlorophyll molecule (2) DNA (3) Mitochondria (4) Ribosomes
Last Answer : (1) Chlorophyll molecule Explanation: The basic structure of chlorophyll consists of a porphyrin ring, coordinated to a central atom. This is very similar in structure to the heme group found in ... was discovered in 1906 and was the first time that magnesium had been detected in living tissue.
Description : Which of the following is present In Chlorophyll molecule? (1) Win (2) Mg (3) Fe (4) K
Last Answer : (2) Mg Explanation: Chlorophyll is the green pigment found in most plants, responsible for light absorption to provide energy by photosynthesis. Magnesium is the sole metallic constituent of the chlorophyll.
Description : Which of the following absorb light energy for photosynthesis? (a) Chlorophyll (b) Water molecule (c) O2 (d) RuBP
Last Answer : a) Chlorophyll
Description : The size of chlorophyll molecule is (a) head 15 × 15 Å, tail 25 Å (b) head 20 × 20 Å, tail 25 Å (c) head 15 × 15 Å, tail 20 Å (d) head 10 × 12 Å, tail 25 Å.
Last Answer : (c) head 15 × 15 Å, tail 20 Å
Description : Magnesium is a constituent metal of (1) Chlorophyll molecule (2) DNA (3) Mitochondria (4) Ribosomes
Last Answer : Chlorophyll molecule
Description : Which of the following is present in Chlorophyll molecule ? (1) Mn (2) Mg (3) Fe (4) K
Last Answer : Mg
Description : In solid-state optical detectors, the excited charge is transported in the solid by ∙ a. Holes and protons ∙ b. Holes and electrons ∙ c. Anion and cation ∙ d. Protons and photons
Last Answer : ∙ b. Holes and electrons
Description : In photosystem-I the first electron acceptor is
Last Answer : In photosystem-I the first electron acceptor is A. Plastocyanin B. An iron-sulfur protein C. Ferrodoxin D. Cytochorme
Description : The first electron acceptor in photosystem-I of cyclic photophosphorylation is
Last Answer : The first electron acceptor in photosystem-I of cyclic photophosphorylation is A. Cytochrome B. Plastocyanin C. Ferrodoxin D. Plastoquinone
Description : What is the accepted view of the placement of electrons in an atom?
Description : What is a photosystem? -Biology
Description : What is a photosystem ?
Last Answer : Chlorophyll molecules and their associated electron receptors work together as a unit. The name of this unit is photosystem. The photosystem is located on the thylakoid screen of the chloroplast and can contain up to four hundred ... i) Photosystem-1 ( PS - I) and ( ii) Photosystem-2 ( PS - II) .
Description : Photosystem concerned with the reduction of NADP is
Last Answer : Photosystem concerned with the reduction of NADP is A. PS-I B. PS-II C. Both (1) amd (2) D. Quantasome
Description : What is a role of photosystem 2 in light reactions?
Description : Which substance in chloroplast is a green pigment that absorbs energy for photosystem?