Description : What are the differences between C3 and C4 photosynthetic pathways? -Biology
Last Answer : answer:
Description : The process which makes major difference between C3 and C4 plants is (a) glycolysis (b) Calvin cycle (c) photorespiration (d) respiration.
Last Answer : (c) photorespiration
Description : Which pair is wrong? (a) C3-maize (b) C4-kranz anatomy (c) Calvin cycle-PGA (d) Hatch and Slack cycle - OAA
Last Answer : (a) C3-maize
Description : Select the false statement ? a. CAM cycle occurs in Mesophyll cells b. C3 plants are more efficient in photosynthesis than C4 plants c. Pineapple is CAM plant d. Maize is C4 plant
Last Answer : b. C3 plants are more efficient in photosynthesis than C4 plants
Description : Compare between the anatomy of leaf in C3 and C4 plants. -Biology
Description : Under what conditions are C4 plants superior to C3 plants? -Biology
Description : Name the two important enzymes of C3 and C4 pathway? -Biology
Description : Which compound act as co2 accepter in c3 and c4 plant -Biology
Description : Glycine gives __________ atoms of purine. (A) C2, C3 (B) C4, C5 and N7 (C) C4, C5 and N9 (D) C4, C6 and N7
Last Answer : Answer : B
Description : The carbon of the pentose in ester linkage with the phosphate in a nucleotide structure is (A) C1 (B) C3 (C) C4 (D) C5
Last Answer : Answer : D
Description : C4 plants normally give more biological yield than C3 plants because of
Last Answer : Ans. Less respiration
Description : The photosynthetic rate of C4 is …….. than C3 plants
Last Answer : Ans. Low
Description : The water use efficiency of C4 is …….. than C3 plants
Last Answer : Ans. High
Description : C4 plant normaly produce more biological yield than C3 plant because of: (A) More photorespiration (B) Less photorespiration (C) Less photophosphorylation (D) More photophosphorylation
Last Answer : (B) Less photorespiration
Description : Photo-respiration rate is highest in which group of plants? (A) C3 plants (B) CAM plants (C)C4 plants (D) None of these
Last Answer : (A) C3 plants
Description : The plants which open their stomata during night for taking CO4 are known as (A) C3 (B) CAM (C)C4 (D) All of above
Last Answer : (B) CAM
Description : With reference to factors affecting the rate of photosynthesis, which of the following statements is not correct? (a) Increasing atmospheric CO2 concentration up to 0.05% can enhance CO2 fixation rate. ( ... for higher yield. (d) Light saturation for CO2 fixation occurs at 10% of full sunlight.
Last Answer : (b) C3 plants respond to higher temperature with enhanced photosynthesis while C4 plants have much lower temperature optimum
Description : Which one of the following is wrong in relation to photorespiration? (a) It occurs in chloroplast. (b) It occurs in day time only. (c) It is a characteristic of C4 plants. (d) It is a characteristic of C3 plants.
Last Answer : (c) It is a characteristic of C4 plants
Description : C4 plants are more efficient in photosynthesis than C3 plants due to (a) higher leaf area (b) presence of larger number of chloroplasts in the leaf cells (c) presence of thin cuticle (d) lower rate of photorespiration
Last Answer : d) lower rate of photorespiration.
Description : A process that makes important difference between C3 and C4 plants is (a) transpiration (b) glycolysis (c) photosynthesis (d) photorespiration.
Last Answer : (d) photorespiration.
Description : Kranz anatomy is typical of (a) C4 plants (b) C3 plants (c) C2 plants (d) CAM plants.
Last Answer : (a) C4 plants
Description : As compared to a C3-plant, how many additional molecules of ATP are needed for net production of one molecule of hexose sugar by C4-plants? (a) Two (b) Six (c) Twelve (d) Zero
Last Answer : (c) Twelve
Description : The C4 plants are photosynthetically more efficient than C3 plants because (a) the CO2 efflux is not prevented (b) they have more chloroplasts (c) the CO2 compensation point is more (d) CO2 generated during photorespiration is trapped and recycled through PEP carboxylase.
Last Answer : (b) they have more chloroplasts
Description : A plant in your garden avoids photorespiratory losses, has improved water use efficiency, shows high rates of photosynthesis at high temperatures and has improved efficiency of nitrogen utilisation. In which of the following ... you assign this plant? (a) CAM (b) Nitrogen fixer (c) C3 (d) C4
Last Answer : d) C4
Description : Phosphoenol pyruvate (PEP) is the primary CO2 acceptor in (a) C4 plants (b) C2 plants (c) C3 and C4 plants (d) C3 plants.
Description : Anomers of D-glucopyranose differ in their stereochemistry at __________. (a) C1 (b) C2 (c) C3 (d) C4
Last Answer : C1
Description : There are six cars numbered as C1, C2, C3, C4, C5 and C6 participating in a race. The results are as follows: C2 does not win. Two cars are in between C4 and C5. C1 is behind C4 and C5. C2 is ahead of C5 ... C4. If C4 is disqualified, then C2 finishes the race at which position? a) 2 b) 3 c) 1 d) 4
Last Answer : Ans: option (a)
Description : There are six cars numbered as C1, C2, C3, C4, C5 and C6 participating in a race. The results are as follows: C2 does not win. Two cars are in between C4 and C5. C1 is behind C4 and C5. C2 is ahead of C5 ... intervening. C6 is ahead of C4. Which car comes in the first place? a) C1 b) C2 c) C3 d) C6
Last Answer : Ans: option (d)
Description : A process that makes important difference between C3 and C4 plants is (1) Photorespiration (2) Transpiration (3) Glycolysis (4) Photosynthesis
Last Answer : (1) Photorespiration
Description : Name the primary acceptor of CO2 in C3 cycle. -Biology
Description : First product formed when CO2 is fixed during dark reaction in C3 cycle. -Biology
Description : Enzyme involved in carboxylation in C3 cycle is -Biology
Description : Who proposed C4 Cycle? -Biology
Description : First product formed after carboxylation in C4 cycle. -Biology
Description : The primary acceptor of CO2 in C4 cycle is? -Biology
Description : Enzyme involved in carboxylation in C4 cycle is? -Biology
Last Answer : In C4 plants the initial carboxylation is catalyzed by PEP carboxylase (orthophos- phate: oxaloacetate carboxylase phosphorylating - E. C. 4.1. 1.
Description : Calvin cycle is: (1) C3 cycle (2) Reductive pentose-phosphate cycle (3) Common in cereals uncommon in cereals (4) Uncommon in cereals
Last Answer : Ans. ((c))
Description : C3 cycle is also known as
Last Answer : Ans. Blackman reaction
Description : C3 /Dark reaction/Calvin cycle take place in
Last Answer : Ans. Stroma of Chlorophyll
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 : C4 cycle is also known as
Last Answer : Ans. Hatch and slack pathway
Description : In C4 plants, Calvin cycle operates in (a) stroma of bundle sheath chloroplasts (b) grana of bundle sheath chloroplasts (c) grana of mesophyll chloroplasts (d) stroma of mesophyll chloroplasts.
Last Answer : (a) stroma of bundle sheath chloroplasts
Description : Why does the Calvin cycle and the Krebs cycle are referred to as cycles of chemical reactions?
Last Answer : Need answer
Description : The number of cycles described in one second is known as _______. A period of vibration B cycle C frequency D all of the above
Last Answer : C frequency
Description : The number of cycles described in one second is known as _______. C ( A ) period of vibration ( B ) cycle ( C ) frequency ( D ) all of the above
Last Answer : C ) frequency
Description : Out of the following refrigeration cycles, which one has the minimum COP (Co-efficient of performance)? (A) Air cycle (B) Carnot cycle (C) Ordinary vapour compression cycle (D) Vapour compression with a reversible expansion engine
Last Answer : A) Air cycle
Description : Out of the following refrigeration cycles, which one has maximum COP? (A) Air cycle (B) Carnot cycle (C) Ordinary vapor compression cycle (D) Vapor compression with a reversible expansion engin
Last Answer : (B) Carnot cycle
Description : Air-refrigeration cycle (A) Is the most efficient of all refrigeration cycles (B) Has very low efficiency (C) Requires relatively large quantities of air to achieve a significant amount of refrigeration (D) Both (B) and (C)
Last Answer : (D) Both (B) and (C)
Description : A Bell-Coleman cycle is a reversed of which the following cycles? a. Stirling cycle b. Joule cycle c. Carnot cycle d. Otto cycle
Last Answer : Joule cycle