Description : `C_(4)` plants are more efficient in photosynthesis than `C_(3)` plants due to
Last Answer : `C_(4)` plants are more efficient in photosynthesis than `C_(3)` plants due to A. ... Presence of larger number of chloroplasts in the leaf cells
Description : Photosynthesis in `C_(4)` plants is relatively less limited by atmospheric `CO_(2)` levels because
Last Answer : Photosynthesis in `C_(4)` plants is relatively less limited by atmospheric `CO_(2)` levels because A. ... 4)` plants has higher affinity for `CO_(2)`
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
Last Answer : In `C_(3)` plants, the first stable product of photosynthesis during dark reaction is A ... Phosphoglyceric acid (PGA) D. Phosphoglyceraldehyde (PGAL)
Description : The first stable compound formed in photosynthesis of `C_(3)` plants is
Last Answer : The first stable compound formed in photosynthesis of `C_(3)` plants is A. Phosphoglyceric acid B. Starch C. Pyruvic acid D. Ribulose diphosphate
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 : 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 : 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 : What causes a green plant exposed to the light, on only one side, to bend towards the source of light as it grows? (a) Light stimulates plant cells on the lighted side to grow ... Green plants need light to perform photosynthesis. (d) Green plants seek light because they are phototropic.
Last Answer : (b) Auxin accumulates on the shaded side, stimulating greater cell elongation there
Description : Photosynthesis in C4 plants is relatively less limited by atmospheric CO2 levels because (a) effective pumping of CO2 into bundle sheath cells (b) RuBisCO in C4 plants has higher affinity for CO2 (c ... d) the primary fixation of CO2 is mediated via PEP carboxylase. (2005) 65. In sugarcane plant
Last Answer : (d) the primary fixation of CO2 is mediated via PEP carboxylase.
Description : As compared to a `C_(3)` plant, how many additional molecules of ATP are needed for net production of one molecule hexose sugar by `C_(4)` plants
Last Answer : As compared to a `C_(3)` plant, how many additional molecules of ATP are needed for net production of one ... plants A. Two B. Six C. Zero D. Twelve
Description : Plants are killed in winter by frost because (a) No photosynthesis occurs at low temperature (b) Of desiccation (c) Water in the plants freezes (d) Water in the plants evaporates
Last Answer : Ans:(b)
Description : Plants get water through the roots because of — (1) elasticity (2) capillarity (3) viscosity (4) photosynthesis
Last Answer : (2) capillarity Explanation: Plants absorb water from their root hairs on the root via osmosis. It is then transported to other parts of the plant (through the network of xylem vessels) ... of capillary action and "transiprational pull." Water moves through the plant by means of capillary action.
Description : Plants are dried up in winter due to frost because – (1) Evaporation does not take place (2) Photosynthesis does not take place at such low temperature (3) Respiration does not take place at low temperature (4) There is mechanical loss of tissues and drought condition prevails
Last Answer : (4) There is mechanical loss of tissues and drought condition prevails Explanation: Respiration does not rely on the sun, so it is possible for plants to respire around the clock. The rate of respiration ... drought in that frozen water is unavailable to the plant. The air is very dry as well.
Description : Growth of early emerging leaves becomes faster because of- (a) Cell division and cell enlargement (b) Stunt growth of plants (c) Faster Photosynthesis (d) Low pressure of outer atmosphere
Last Answer : (b) 15°C – 40°C
Description : Plants get water through the roots because of— (1) elasticity (2) capillarity (3) viscosity (4) photosynthesis
Last Answer : capillarity
Description : Plants are dried up in winter due to frost because (1) Evaporation does not take place (2) Photosynthesis does not take place at such low temperature (3) Respiration does not take place at low temperature (4) There is mechanical loss of tissues and drought condition prevails
Last Answer : There is mechanical loss of tissues and drought condition prevails
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 : Electric power is less expensive at night because: w) more hydroelectric generation is brought on line at night. x) there is less demand at night. y) pollution control is less stringent at night. z) power plants are more efficient at night.
Last Answer : ANSWER: X -- THERE IS LESS DEMAND AT NIGHT.
Description : If a forest is producing enough oxygen for both the plant and animals in the forest to use is there more photosynthesis happening within plants?
Last Answer : What is the answer ?
Description : The process which makes major difference between `C_(3)` and `C_(4)` plants is
Last Answer : The process which makes major difference between `C_(3)` and `C_(4)` plants is A. Photorespiration B. Respiration C. Glycopsis D. Calvin cycle
Description : A process that makes important difference between `C_(3)` and `C_(4)` plants is
Last Answer : A process that makes important difference between `C_(3)` and `C_(4)` plants is A. Glycolysis B. Photosynthesis C. Photorespiration D. Transpiration
Description : In the leaves of `C_(4)` plants, malic acid formation during `CO_(2)` fixation occurs in the cells of
Last Answer : In the leaves of `C_(4)` plants, malic acid formation during `CO_(2)` fixation occurs in the ... A. Epidermis B. Mesophyll C. Bundle sheath D. Phloem
Description : Assertion :In `C_(4)` plants, the chloroplasts of bundle sheath cells are granal. Reason: PS II is mostly found in the appressed part of granum.
Last Answer : Assertion :In `C_(4)` plants, the chloroplasts of bundle sheath cells are granal. Reason: PS II ... false. D. If both Assertion and Reason are false.
Description : Photorespiratioin in `C_(3)` plants starts from
Last Answer : Photorespiratioin in `C_(3)` plants starts from A. Phosphoglycerate B. Glycerate C. Glycine D. Phosphoglycolate
Description : In `C_(4)` plants, Calvin cycle operates in
Last Answer : In `C_(4)` plants, Calvin cycle operates in A. Grana of mesophyll chloroplasts B. ... Bundle sheath cells chloroplasts D. Wrong statements wrong
Description : The initial `CO_(2)` acceptor in `C_(4)` plants is
Last Answer : The initial `CO_(2)` acceptor in `C_(4)` plants is A. Phosphoglyceraldehyde B. Ribulose monophosphate C. Phosphonel pyruvate D. Ribulose diphosphate
Description : The `C_(4)`-plants are different from the `C_(3)`-plants with reference to the
Last Answer : The `C_(4)`-plants are different from the `C_(3)`-plants with reference to the A. Type ... `CO_(2)` in carbon assimilation and first stable product
Description : The first carbon dioxide accptor in `C_(4)` plants is
Last Answer : The first carbon dioxide accptor in `C_(4)` plants is A. Phosphoenol pyruvate B. Oxaloacetic acid C. Phosphoglyceric acid D. Pibulose 1,5-diphosphate
Description : The carbon dioxide acceptor in Calvin cycle/ `C_(3)`- plants is
Last Answer : The carbon dioxide acceptor in Calvin cycle/ `C_(3)`- plants is A. PEP B. RuBP C. PGA D. NADP
Description : In `C_(4)` plants , initial `CO_(2)` fixation takes place in the chloroplasts of
Last Answer : In `C_(4)` plants , initial `CO_(2)` fixation takes place in the chloroplasts of A. Gurad cells B. Mesophyll cells C. Spongy tissue D. Bundle sheath
Description : Low -temperature sensitivity of `C_(4)` plants aer due to
Last Answer : Low -temperature sensitivity of `C_(4)` plants aer due to A. PEP synthetase B. PEPCO C. RuBisCO D. Malate dehydrogenase
Description : In `C_(4)` plants , mesophyll cells and bundle sheath cells are specialized to perform, respectively,
Last Answer : In `C_(4)` plants , mesophyll cells and bundle sheath cells are specialized to ... and photorespiration D. Photorespiration and dark reaction
Description : In `C_(4)` plants , the first product is
Last Answer : In `C_(4)` plants , the first product is A. 3-PGA B. OAA C. Malic acid D. Glutamic acid
Last Answer : The initial `CO_(2)` acceptor in `C_(4)` plants is A. PEP B. PGA C. RuBP D. Pyruvate
Description : `C_(2)` plants differ from `C_(3)` plants with respect to
Last Answer : `C_(2)` plants differ from `C_(3)` plants with respect to A. First product B. Substrate which ... C. Number of ATP molecules consmed D. All the above
Description : The family in which many plants are `C_(4)` type
Last Answer : The family in which many plants are `C_(4)` type A. Papaya B. Pea C. Potato D. Maize/corm
Description : The first stable product in `CAM//C_(4)` plants is
Last Answer : The first stable product in `CAM//C_(4)` plants is A. Starch B. Oxalo-acetic acid C. Sugar D. Malic acid
Description : In `C_(4)`-Plants, Calvin cycle enzymes are absent in
Last Answer : In `C_(4)`-Plants, Calvin cycle enzymes are absent in A. Mesophyll chloroplasts B. ... C. Guard cell chloroplasts D. Epidermal chloroplasts
Description : `C_(4)` plants are spacial, They have special type of (A)_____ they tolerate (B)____,they show a response to (C)______, they lack a process called (D)
Last Answer : `C_(4)` plants are spacial, They have special type of (A)_____ they tolerate (B)____,they show ... a process called (D)_____ and have greater (E)____
Description : Write the concentration of `CO_(2)` at which `C_(3) and C_(4)` plants shows saturation respectively.
Last Answer : Write the concentration of `CO_(2)` at which `C_(3) and C_(4)` plants shows saturation respectively.
Description : Write the characteristics of bundle sheath cells of `C_(4)` plants
Last Answer : Write the characteristics of bundle sheath cells of `C_(4)` plants
Description : In plants, __________ is the process of converting stored energy into energy for plant growth. a. Transpiration b. Photosynthesis c. Respiration d. Pollination
Last Answer : Respiration
Description : In an ocean, the upper layer of water with sufficient light penetration to support photosynthesis by aquatic plants i known as the: w) free zone x) plant zone y) photic zone z) primary zone
Last Answer : ANSWER: Y -- PHOTIC ZONE
Description : In chlorophyll-containing plants, what are TWO products of green plant photosynthesis?
Last Answer : ANSWER: OXYGEN AND GLUCOSE (accept energy, also)
Description : Water vapour comes out from the plant leaf through the stomatal opening. Through the same stomatal opening carbon dioxide diffuses into the plant during photosynthesis. Reason out the above ... Both processes can happen together because the diffusion coefficient of water and CO2 is different
Last Answer : (d) Both processes can happen together because the diffusion coefficient of water and CO2 is different
Description : If `""^(n)C_(3)=""^(n)C_(15)`, then `""^(20)C_(n)` is __________
Last Answer : If `""^(n)C_(3)=""^(n)C_(15)`, then `""^(20)C_(n)` is __________
Description : If `""^(12)C_(r)(4)^(12-r)(x)^(12-3r)` is a contant term in an expansion, then r = __________
Last Answer : If `""^(12)C_(r)(4)^(12-r)(x)^(12-3r)` is a contant term in an expansion, then r = __________
Description : If `""^(n)C_(r)=1 and n=6,` then what may be the value (s) of r be?
Last Answer : If `""^(n)C_(r)=1 and n=6,` then what may be the value (s) of r be?
Description : Compound A is chiral and has the molecular formula `C_(8)H_(11)N`. When A reacts nitrous acid then occurs a brisk evolution of `N_(2)` gas. A dissolve
Last Answer : Compound A is chiral and has the molecular formula `C_(8)H_(11)N`. When A reacts ... . 1-phenylethanamine C. 1-cyclohexylethanamine D. N-ethylaniline