The 5- carbon compounds produced
during dark reaction of photosynthesis
is
(A) Ribose phosphate (B) Xylulose
phosphate
(C) Ribulose bis phosphate (D)
Seda heptulose phosphate

1 Answer

Answer :

(C) Ribulose bis phosphate

Related questions

Description : The first pentose formed in HMP shunt is (A) Ribose-5-phosphate (B) Ribulose-5-phosphate (C) Xylose-5-phosphate (D)Xylulose-5-phosphate

Last Answer : Answer : B

Description : The four membered aldose sugar phosphate formed in HMP shunt pathway is (A) Xylulose P (B) Erythrulose P (C) Erythrose P (D) Ribulose P

Last Answer : C

Description : Pentosuria is a rare hereditary disease is characterized by increased urinary excretion of (A) L-xylulose (B) Xylitol (C) Xylulose 5-phosphate (D) Ribose 5-phosphate

Last Answer : Answer : A

Description : Xylulose-5-phosphate serves as a donar of active glycolaldehyde, the acceptor is (A) Erythrose 4-phosphate (B) Ribose 5-phosphate (C) Glyceraldehyde 3-phosphate (D) Sedoheptulose 7-phosphate

Last Answer : Answer : A

Description : The sugar present in DNA is – (1) Pentose (2) Xylulose (3) Hexose (4) Heptulose

Last Answer : ( 1) Pentose Explanation: The sugar present in DNA is 2- deoxyribose, which is a pentose

Description : The sugar present in DNA is (1) Pentose (2) Xylulose (3) Hexose (4) Heptulose

Last Answer : Pentose

Description : In essential pentosuria, urine contains (A) D-Ribose (B) D-Xylulose (C) L-Xylulose (D) D-Xylose

Last Answer : C

Description : The sugar moiety present in DNA is (A) Deoxyribose (B) Ribose (C) Lyxose (D) Ribulose

Last Answer : Answer : A

Description : The sugar moiety present in RNA is (A) Ribulose (B) Arabinose (C) Ribose (D) Deoxyribose

Last Answer : Answer : C

Description : A carbohydrate found in DNA is (A) Ribose (B) Deoxyribose (C) Ribulose (D) All of these

Last Answer : B

Description : The sugar found in RNA is (A) Ribose (B) Deoxyribose (C) Ribulose (D) Erythrose

Last Answer : A

Description : The sugar found in DNA is (A) Xylose (B) Ribose (C) Deoxyribose (D) Ribulose

Last Answer : C

Description : The sugar found in DNA is (A) Xylose (B) Ribose (C) Deoxyribose (D) Ribulose

Last Answer : (C) Deoxyribose

Description : In sugarcane plant 14CO2 is fixed to malic acid, in which the enzyme that fixes CO2 is (a) ribulose biphosphate carboxylase (b) phosphoenol pyruvic acid carboxylase (c) ribulose phosphate kinase (d) fructose phosphatase.

Last Answer : (b) phosphoenol pyruvic acid carboxylase

Description : A key substance in the committed step of pyrimidines biosynthesis is (A) Ribose-5-phosphate (B) Carbamoyl phosphate (C) ATP (D) Glutamine

Last Answer : Answer : B

Description : A common substrate of HGPRTase, APRTase and PRPP glutamyl amidotransferase is (A) Ribose 5 phosphate (B) Phosphoribosyl pyrophosphate (C) Hypoxanthine (D) Adenosine

Last Answer : Answer : B

Description : 6-Mercapto purine inhibits the conversion of (A) IMP→ XMP (B) Ribose 5 phosphate → PRPP (C) PRPP → 5-phospho →β -D-ribosylamine (D) Glycinamide ribosyl 5-phosphate → formylglycinamide ribosyl-5-phosphate

Last Answer : Answer : A

Description : The key substance in the synthesis of purine, phosphoribosyl pyrophosphate is formed by (A) α-D-ribose 5-phosphate (B) 5-phospho β-D-ribosylamine (C) D-ribose (D) Deoxyribose

Last Answer : Answer : A

Description : Glucose-6-phosphate dehydrogenase is induced by (A) 6-Phosphogluconolactone (B) Glucose-6-phosphate (C) Ribose-5-phosphate (D) Insulin

Last Answer : Answer : D

Description : In pentose phosphate pathway, D-ribulose5-phosphate is converted to D-ribose-5- phosphate by the enzyme: (A) Fumarase (B) Ketoisomerase (C) G-6-PD (D) Epimerase

Last Answer : Answer : B

Description : Which one of the following is a non - reducing carbohydrate? (a) Maltose (b) Sucrose (c) Lactose (d) Ribose 5-phosphate

Last Answer : (b) Sucrose

Description : In RNA, apart from ribose and phosphate, all following are present except (A) Adenine (B) Guanine (C) Thymine (D) Cytosine

Last Answer : Answer : C

Description : Polynucleotide chain of DNA contains (a) a nitrogenous base, deoxyribose sugar and phosphate group (b) a nitrogenous base, ribose sugar and phosphate group (c) deoxyribose sugar ribose sugar and phosphate group (d) a nitrogenous base and phosphate group only

Last Answer : Ans:(a)

Description : Which one of the following statements is not true of RNA? a. RNA contains the monosaccharide ribose. b. RNA is primarily a single-stranded molecule. c. RNA has a sugar-phosphate backbone. d. RNA contains five different nucleotides.

Last Answer : d. RNA contains five different nucleotides.

Description : A molecule of ATP contains a. Ribose But No Adenine. b. Phosphate But No Ribose. c. Adenine But No Deoxyribose. d. Deoxyribose But No Thymine.

Last Answer : b. Phosphate But No Ribose.

Description : Which one of the following is NOT part of an ATP MOLECULE? a. Phosphate group b. Cofactor c. Ribose d. Adenine

Last Answer : b. Cofactor

Description : The first carbon dioxide acceptor in C4-plants is (a) phosphoenol-pyruvate (b) ribulose 1, 5-diphosphate (c) oxaloacetic acid (d) phosphoglyceric acid.

Last Answer : (a) phosphoenol-pyruvate

Description : The carbon dioxide acceptor in Calvin cycle/ C3-plants is (a) phosphoenol pyruvate (PEP) (b) ribulose 1, 5-diphosphate (RuDP) (c) phosphoglyceric acid (PGA) (d) ribulose monophosphate (RMP).

Last Answer : (b) ribulose 1, 5-diphosphate (RuDP)

Description : In `C_(3)` plants, the first stable product of photosynthesis during dark reaction is

Last Answer : In `C_(3)` plants, the first stable product of photosynthesis during dark reaction is A. ... acid C. Oxaloacetic acid D. 3-Phosphoglyceric acid

Description : In `C_(3)` plants, the first stable product of photosynthesis during dark reaction is

Last Answer : In `C_(3)` plants, the first stable product of photosynthesis during dark reaction is A ... Phosphoglyceric acid (PGA) D. Phosphoglyceraldehyde (PGAL)

Description : In C3 plants, the first stable product of photosynthesis during the dark reaction is (a) malic acid (b) oxaloacetic acid (c) 3-phosphoglyceric acid (d) phosphoglyceraldehyde.

Last Answer : (c) 3-phosphoglyceric acid

Description : Which of the following is correct about the photorespiration? a. Photorespiration is more efficient in synthesizing glucose than photosynthesis. b. C3 plants are best adapted to handle c. ... During photorespiration plants use oxygen to break down carbohydrates and release e. All of these

Last Answer : c. Photorespiration is likely to occur when oxygen level is high and CO2 level is

Description : The main role of bacteria in the carbon cycle involves (a) chemosynthesis (b) digestion or breakdown of organic compounds (c) photosynthesis (d) assimilation of nitrogenous compounds.

Last Answer : (b) digestion or breakdown of organic compounds

Description : The main role of bacteria in the carbon cycle involves (a) chemosynthesis (b) digestion or breakdown of organic compounds (c) photosynthesis (d) assimilation of nitrogenous compounds.

Last Answer : (b) digestion or breakdown of organic compounds

Description : Dark reaction of photosynthesis does not need light. Do plants undergo dark reaction at night? Explain. -Science

Last Answer : Dark reaction does not mean that it occurs in the absence of light i.e., at night. Infact, it is the reaction occuring simultaneously with light reaction. It a chemical process occurring independent of light. This reaction is completely based on enzymes.

Description : Dark reaction in photosynthesis? -Biology

Last Answer : answer:

Description : Dark reaction in photosynthesis is called so because -Biology

Last Answer : answer:

Description : Dark reaction in photosynthesis equation -Biology

Last Answer : answer:

Description : Calling the biosynthetic phase of photosynthesis as the dark reaction is a misnomer.

Last Answer : Calling the biosynthetic phase of photosynthesis as the dark reaction is a misnomer.

Description : In photosynthesis energy from light reaction to dark reaction is transferred in the form of (a) ADP (b) ATP (c) RuDP (d) chlorophyll.

Last Answer : (b) ATP

Description : Phosphorus is generally fixed in acid soils in the form of— (A) Calcium Phosphate (B) Zn Phosphate (C) Aluminium Phosphate (D) None of these

Last Answer : (C) Aluminium Phosphate

Description : Which of the following phosphatic fertilizer is useful in groundnut crop ? (A) D.A.P. (B) Rock Phosphate (C) Triple Super-Phosphate (TSP) (D) Single Super Phosphate (S.S.P.)

Last Answer : (D) Single Super Phosphate (S.S.P.)

Description : Which Fertilizer is Mainly Manufactured in India? A. Ammonium PhosphateB. Single Super Phosphate C. Urea D. None

Last Answer : C. Urea

Description : Which of the ‘complex fertilizer’? 1) Ammonium sulphate nitrate 2) Single superphosphate 3) Ammonium phosphate 4) Calcium ammonium nitrate

Last Answer : 3) Ammonium phosphate

Description : The primary acceptor, during CO2 fixation in C3 plants, is (a) phosphoenolpyruvate (PEP) (b) ribulose 1, 5-diphosphate (RuDP) (c) phosphoglyceric acid (PGA) (d) ribulose monophosphate (RMP).

Last Answer : (b) ribulose 1, 5-diphosphate (RuDP)

Description : The splitting up of water molecules in plant cells in the presence of sunlight is called (A)Photophosphorylation (B) Photosynthesis (C) Photolysis (D) Phosphorylation

Last Answer : (C) Photolysis

Description : Main function of biofertilizer is— (A) To increase chemical process (B) To increase physiological process (C) To increase biological process (D) To increase photosynthesis process

Last Answer : (C) To increase biological process

Description : The first product of photosynthesis in C 3 plant is— (A) Pyruvic acid (B) Phospho-glyceric acid (C) Oxalo-acetic acid (D) Succinic acid

Last Answer : (B) Phospho-glyceric acid

Description : Maximum photosynthesis takes place in— (A) Blue light (B) Red light (C) Violet light (D) Green light

Last Answer : (D) Green light

Description : How many ATP are required to produce 1 mole of hexose in photosynthesis? (a) 8 (b) 18 (c) 28 (d) 38

Last Answer : (b) 18