Select the correct statement: (1) C4 pathway for. CO2 fixation were discovered by Hatch and Slack (2) CO2 is essential for photosynthesis (3) Addition of sodium carbonate in water retards photosynthetic rate in vallisneria (4) Phloem is the principal pathway for translocation of solutes

Select the correct statement: (1) C4 pathway for. CO2 fixation were discovered by Hatch and Slack (2) CO2 is essential for photosynthesis (3) Addition of sodium carbonate in water retards photosynthetic rate in vallisneria (4) Phloem is the principal pathway for translocation of solutes
by

1 Answer

Answer :

Ans. ((c))
by
selected

Related questions

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.(b) C3 plants respond to higher temperature with enhanced photosynthesis while C4 plants have much lower temperature optimum. (c) Tomato is a greenhouse crop which can be grown in CO2-enriched atmosphere for higher yield. (d) Light saturation for CO2 fixation occurs at 10% of full sunlight.

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

The principal pathway of water translocation in angiosperms is (a) sieve cells (b) sieve tube elements (c) xylem vessel system (d) xylem and phloem

Description : The principal pathway of water translocation in angiosperms is (a) sieve cells (b) sieve tube elements (c) xylem vessel system (d) xylem and phloem

Last Answer : a) sieve cells

The most important enzyme involved in photosynthetic CO2 fixation in C4 plants

Description : The most important enzyme involved in photosynthetic CO2 fixation in C4 plants

Last Answer : Ans. PEP carboxylase

In the leaves of C4 plants, malic acid formation during CO2 fixation occurs in the cells of (a) bundle sheath (b) phloem (c) epidermis (d) mesophyll.

Description : In the leaves of C4 plants, malic acid formation during CO2 fixation occurs in the cells of (a) bundle sheath (b) phloem (c) epidermis (d) mesophyll.

Last Answer : (d) mesophyll.

The CO2 fixation during C4 pathway occurs in the chloroplast of (a) guard cells (b) bundle sheath cells (c) mesophyll cells (d) spongy parenchyma.

Description : The CO2 fixation during C4 pathway occurs in the chloroplast of (a) guard cells (b) bundle sheath cells (c) mesophyll cells (d) spongy parenchyma.

Last Answer : (c) mesophyll cells

Bidirectional translocation of solutes takes place in (a) parenchyma (b) cambium (c) xylem (d) phloem.

Description : Bidirectional translocation of solutes takes place in (a) parenchyma (b) cambium (c) xylem (d) phloem.

Last Answer : (d) phloem.

Which pair is wrong? (a) C3-maize (b) C4-kranz anatomy (c) Calvin cycle-PGA (d) Hatch and Slack cycle - OAA

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

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) four carbon acids are the primary initial CO2 fixation products (d) the primary fixation of CO2 is mediated via PEP carboxylase. (2005) 65. In sugarcane plant

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.

Hatch-Slack pathway is present in which type of plants? -Biology

Description : Hatch-Slack pathway is present in which type of plants? -Biology

Last Answer : answer:

In Hatch-Slack pathway, carboxylation occurs how many times? -Biology

Description : In Hatch-Slack pathway, carboxylation occurs how many times? -Biology

Last Answer : answer:

In Hatch-Slack pathway, carboxylation occurs how many times? -Biology

Description : In Hatch-Slack pathway, carboxylation occurs how many times? -Biology

Last Answer : answer:

Plants adapted to low light intensity have (a) larger photosynthetic unit size than the sun plants (b) higher rate of CO2 fixation than the sun plants (c) more extended root system (d) leaves modified to spines.

Description : Plants adapted to low light intensity have (a) larger photosynthetic unit size than the sun plants (b) higher rate of CO2 fixation than the sun plants (c) more extended root system (d) leaves modified to spines.

Last Answer : (a) larger photosynthetic unit size than the sun plants

First CO2 receptor in C4 plants is: (a) PGA (b) PEP (c) RuBD (d) OAA

Description : First CO2 receptor in C4 plants is: (a) PGA (b) PEP (c) RuBD (d) OAA

Last Answer : Ans. ((b))

PGA as the first CO2 fixation product was discovered in photosynthesis of (a) bryophyte (b) gymnosperm (c) angiosperm (d) alga.

Description : PGA as the first CO2 fixation product was discovered in photosynthesis of (a) bryophyte (b) gymnosperm (c) angiosperm (d) alga.

Last Answer : (d) alga.

Study the pathway given below. Atmospheric CO2 mesophyll cell Bundle sheath cell Plasma- desmata Plasma membrane Cell wall HCO Phosphoenol- 3 – pyruvate Cell wall C acid 4 C acid 3 Transport Transport Fixation by Calvin cycle C acid 4 C acid 3 CO2 In which of the following options correct words for all the three blanks A, B and C are indicated? A B C (a) Decarboxylation Reduction Regeneration (b) Fixation Transamination Regeneration (c) Fixation Decarboxylation Regeneration (d) Carboxylation Decarboxylation Reduction

Description : Study the pathway given below. Atmospheric CO2 mesophyll cell Bundle sheath cell Plasma- desmata Plasma membrane Cell wall HCO Phosphoenol- 3 - pyruvate Cell wall C acid ... b) Fixation Transamination Regeneration (c) Fixation Decarboxylation Regeneration (d) Carboxylation Decarboxylation Reduction

Last Answer : (c) Fixation Decarboxylation Regeneration

The most important enzyme involved in photosynthetic CO2 fixation in C3 plants

Description : The most important enzyme involved in photosynthetic CO2 fixation in C3 plants

Last Answer : Ans. Rubisco

In C4 plants, CO2 fixation is done by (a) sclerenchyma (b) chlorenchyma and hypodermis (c) mesophyll cells (d) guard cells.

Description : In C4 plants, CO2 fixation is done by (a) sclerenchyma (b) chlorenchyma and hypodermis (c) mesophyll cells (d) guard cells.

Last Answer : (c) mesophyll cells

In leaves of C4 plants, malic acid synthesis during CO2 fixation occurs in (a) bundle sheath (b) guard cells (c) epidermal cells (d) mesophyll cells

Description : In leaves of C4 plants, malic acid synthesis during CO2 fixation occurs in (a) bundle sheath (b) guard cells (c) epidermal cells (d) mesophyll cells

Last Answer : (d) mesophyll cells.

Moll’s experiment explains that (a) Carbon dioxide is essential for photosynthesis (b) Chlorophyll and water are necessary for photosynthesis (c) Light and water are essential for photosynthesis (d) All of the above are correct

Description : Moll’s experiment explains that (a) Carbon dioxide is essential for photosynthesis (b) Chlorophyll and water are necessary for photosynthesis (c) Light and water are essential for photosynthesis (d) All of the above are correct

Last Answer : Ans. ((a))

Translocation of solutes in plants. -Biology

Description : Translocation of solutes in plants. -Biology

Last Answer : answer:

The translocation of organic solutes in sleve tube membres is supportted by

Description : The translocation of organic solutes in sleve tube membres is supportted by

Last Answer : The translocation of organic solutes in sleve tube membres is supportted by A. Mass flow ... Root pressure and transpiration pull D. P-protein

The translocation of organic solutes in sieve tube members is supported by (a) cytoplasmic streaming (b) root pressure and transpiration pull (c) P-proteins (d) mass flow involving a carrier and ATP

Description : The translocation of organic solutes in sieve tube members is supported by (a) cytoplasmic streaming (b) root pressure and transpiration pull (c) P-proteins (d) mass flow involving a carrier and ATP

Last Answer : (a) cytoplasmic streaming

The photosynthetic rate of C4 is …….. than C3 plants

Description : The photosynthetic rate of C4 is …….. than C3 plants

Last Answer : Ans. Low

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

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

Hatch and Slack are citizens of which country ?

Last Answer : Hatch and Slack are Australian citizens

Hatch, Slack Cycle What ?

Last Answer : The C4 path of CO2 degradation Of the discoverer By name Hatch, Snack Cycle Says.

‘The law of limiting factors’ was proposed by (a) Leibig (b) Hatch and Slack (c) Blackman (d) Arnon.

Description : ‘The law of limiting factors’ was proposed by (a) Leibig (b) Hatch and Slack (c) Blackman (d) Arnon.

Last Answer : (c) Blackman

The formation of multivalents at meiosis in diploid organism is due to: (a) Monosomy (b) Delection (c) Inversion (d) Reciprocal translocation

Description : The formation of multivalents at meiosis in diploid organism is due to: (a) Monosomy (b) Delection (c) Inversion (d) Reciprocal translocation

Last Answer : Ans. ((d))

‘Illegitimate crossing over’ is another term for (a) Transition (b) Transversion (c) Reciprocal translocation (d) None of the above

Description : ‘Illegitimate crossing over’ is another term for (a) Transition (b) Transversion (c) Reciprocal translocation (d) None of the above

Last Answer : Ans. ((c))

The scutellum of the gram embryo is a: (a) Vestigial organ (b) Photosynthetic organ (c) Absorptive organ (d) Protective organ

Description : The scutellum of the gram embryo is a: (a) Vestigial organ (b) Photosynthetic organ (c) Absorptive organ (d) Protective organ

Last Answer : Ans. ((a))

The specific characters of C4 plant is: (a) Bulliform cells (b) Kranz anatomy (c) Parallel venation (d) Isobilateral leaf

Description : The specific characters of C4 plant is: (a) Bulliform cells (b) Kranz anatomy (c) Parallel venation (d) Isobilateral leaf

Last Answer : Ans. ((b))

What tissue present in leaves of Pinus conducts food and water laterally? (a) Transfusion tissue (b) Phloem (c) Xylem (d) Medullary rays

Description : What tissue present in leaves of Pinus conducts food and water laterally? (a) Transfusion tissue (b) Phloem (c) Xylem (d) Medullary rays

Last Answer : Ans. ((a))

Chief function of phloem is conduction of: (a) Food (b) Minerals (c) Water (d) Air

Description : Chief function of phloem is conduction of: (a) Food (b) Minerals (c) Water (d) Air

Last Answer : Ans. ((a))

What are the differences between C3 and C4 photosynthetic pathways? -Biology

Description : What are the differences between C3 and C4 photosynthetic pathways? -Biology

Last Answer : answer:

Leptome is used for: (a) Phloem (c) Fibres (b) Xylem (d) Parenhyma

Description : Leptome is used for: (a) Phloem (c) Fibres (b) Xylem (d) Parenhyma

Last Answer : Ans. ((a))

Included phloem is found in

Description : Included phloem is found in

Last Answer : Included phloem is found in – Salvadora.

When many islands of phloem embedded in xylem layer due to anomalous activity of cambium are formed such phloems are known as

Description : When many islands of phloem embedded in xylem layer due to anomalous activity of cambium are formed such phloems are known as

Last Answer : When many islands of phloem embedded in xylem layer due to anomalous activity of cambium are formed such phloems are known as – Included phloem

Presence of two layers of phloem, one above xylem and another below xylem is called as

Description : Presence of two layers of phloem, one above xylem and another below xylem is called as

Last Answer : Presence of two layers of phloem, one above xylem and another below xylem is called as – Bicollateral arrangement

PGA as the first `CO_(2)` fixation product was discovered in photosynthesis of

Description : PGA as the first `CO_(2)` fixation product was discovered in photosynthesis of

Last Answer : PGA as the first `CO_(2)` fixation product was discovered in photosynthesis of A. Angiosperm B. Alga C. Bryophyte D. Gymnosperm

Increasing high skin cancer and high mutation rate are a) O3 depletion b) Acid rain c) CO pollution d) CO2 Pollution.

Description : Increasing high skin cancer and high mutation rate are a) O3 depletion b) Acid rain c) CO pollution d) CO2 Pollution.

Last Answer : a) O3 depletion

With reference to factors affecting the rate of photosynthesis, which of the following statements is not correct ? (1) Increasing atmospheric CO 2 concentration up to 0.05% can enhance CO 2 fixation rate (2) C 3 plants respond to higher temperatures with enhanced photosynthesis while C 4 plants have much lower temperature optimum (3) Tomato is a greenhouse crop which can be grown in CO 2 - enriched atmosphere for higher yield (4) Light saturation for CO 2 fixation occurs at 10% of full sunlight

Description : With reference to factors affecting the rate of photosynthesis, which of the following statements is not correct ? (1) Increasing atmospheric CO 2 concentration up to 0.05% can enhance CO 2 fixation ... for higher yield (4) Light saturation for CO 2 fixation occurs at 10% of full sunlight

Last Answer : (2) C 3 plants respond to higher temperatures with enhanced photosynthesis while C 4 plants have much lower temperature optimum

What is the principle pathway of water translocation in angiosperms?

Description : What is the principle pathway of water translocation in angiosperms?

Last Answer : Xylem vessel system

Ozone hole causes a) Global warming b) Reduction in the rate of photosynthesis c) More UV rays come to earth d) All the above.

Description : Ozone hole causes a) Global warming b) Reduction in the rate of photosynthesis c) More UV rays come to earth d) All the above.

Last Answer : c) More UV rays come to earth

Select the correct statement: (1) Lenticel is the exit route for transpiration (2) The action spectra of transpiration is blue and red (3) Transpiration helps the plant to remain cool (4) Transpiration can be measured by photometer

Description : Select the correct statement: (1) Lenticel is the exit route for transpiration (2) The action spectra of transpiration is blue and red (3) Transpiration helps the plant to remain cool (4) Transpiration can be measured by photometer

Last Answer : Ans. ((c))

Select the correct statement: (a) Legumes are incapable of fixing nitrogen (b) Legumes fix nitrogen through bacteria living in fruits root (c) Legumes fix nitrogen only by bacteria present in nodules (d) None of the above

Description : Select the correct statement: (a) Legumes are incapable of fixing nitrogen (b) Legumes fix nitrogen through bacteria living in fruits root (c) Legumes fix nitrogen only by bacteria present in nodules (d) None of the above

Last Answer : Ans. (c)

An ___________ solution which consists of solutes in water, is essential for chemical reactions to occur. a. hydrophobic b. aqueous c. covalent d. vitreous

Description : An ___________ solution which consists of solutes in water, is essential for chemical reactions to occur. a. hydrophobic b. aqueous c. covalent d. vitreous

Last Answer : b. aqueous

Criticize the following statement: Plants carry on photosynthesis; animals carry on respiration instead.

Description : Criticize the following statement: Plants carry on photosynthesis; animals carry on respiration instead.

Last Answer : This is an incorrect view. Both plants and animals carry on respiration as a major source of energy for vital functions. Only plants, however, are also capable of carrying out photosynthesis. The ... will determine whether there is a net uptake of O2 or CO2 from a particular plant region. 

The enzyme that catalyses carbon dioxide fixation in C4 plants is (a) RuBP carboxylase (b) PEP carboxylase (c) carbonic anhydrase (d) carboxydismutase.

Description : The enzyme that catalyses carbon dioxide fixation in C4 plants is (a) RuBP carboxylase (b) PEP carboxylase (c) carbonic anhydrase (d) carboxydismutase.

Last Answer : (b) PEP carboxylase

What make H2CO3. Ans you can make H2CO3 by CO2 plus H2O H2CO3 if you want to make sodium hydrogen carbonate then you can make it like this Na plus H2CO3 NaHCO3?

Description : What make H2CO3. Ans you can make H2CO3 by CO2 plus H2O H2CO3 if you want to make sodium hydrogen carbonate then you can make it like this Na plus H2CO3 NaHCO3?

Last Answer : The correct chemical equation is:Na2CO3 + CO2 + H2O = 2 NaHCO3

Permanent - hardness of water may be removed by addition of – (1) Alum (2) Sodium carbonate (3) Lime (4) Potassium Permangante

Description : Permanent - hardness of water may be removed by addition of – (1) Alum (2) Sodium carbonate (3) Lime (4) Potassium Permangante

Last Answer : (2) Sodium carbonate Explanation: Sodium carbonate (also known as washing soda or soda ash) is a sodium salt of carbonic acid. In domestic use, it is used as a water softener in laundering. It ... with the detergent being used. Sodium carbonate can be used to remove grease, oil and wine stains.