Assertion : Dark acidification of cytoplasm occurs in CAM plants. Reaon : Orgnaic acids are decarboxylated during night.

Assertion : Dark acidification of cytoplasm occurs in CAM plants. Reaon : Orgnaic acids are decarboxylated during night.
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Assertion : Dark acidification of cytoplasm occurs in CAM plants. Reaon : Orgnaic acids are ... . If both Assertion and Reason are false.
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In the mesophyll cells of CAM plants, `CO_(2)` fixation during the night day occurs through

Description : In the mesophyll cells of CAM plants, `CO_(2)` fixation during the night day occurs through

Last Answer : In the mesophyll cells of CAM plants, `CO_(2)` fixation during the night day occurs ... carboxylase D. Both RuBP carboxylase and PEP carboxylase

Assertion (A) `:` Replication and transcription occur in the nucleus but translation occurs in the cytoplasm. Reason (R ) `:` m-RNA is transferred fro

Description : Assertion (A) `:` Replication and transcription occur in the nucleus but translation occurs in the cytoplasm. Reason (R ) `:` m-RNA is transferred fro

Last Answer : Assertion (A) `:` Replication and transcription occur in the nucleus but translation occurs in the ... D. If both assertion and reason are false.

The plants which open their stomata during night for taking CO4 are known as (A) C3 (B) CAM (C)C4 (D) All of above

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

Stomata of CAM plants (a) are always open (b) open during the day and close at night (c) open during the night and close during the day (d) never open.

Description : Stomata of CAM plants (a) are always open (b) open during the day and close at night (c) open during the night and close during the day (d) never open.

Last Answer : (c) open during the night and close during the day

Which of the following statement(s) is/are true concerning translation of the mRNA message to protein synthesis? a. An adaptor molecule, tRNA, recognizes specific nucleic acid bases and unites them with specific amino acids b. Covalent attachment of tRNA to amino acids is energy dependent c. The formation of a peptide bond between the growing peptide chain and the free amino acid occurs in the free cytoplasm d. Complete protein synthesis takes hours

Description : Which of the following statement(s) is/are true concerning translation of the mRNA message to protein synthesis? a. An adaptor molecule, tRNA, recognizes specific nucleic acid bases and unites them ... and the free amino acid occurs in the free cytoplasm d. Complete protein synthesis takes hours

Last Answer : Answer: a, b The synthesis of protein involves conversion from a four-letter nucleotide language to one of 20 chemically distinct amino acids. This process is referred to as ... translation and be moving down the mRNA molecules simultaneously, thus increasing the rate of protein synthesis

The α-ketoacid is decarboxylated by H2O2 forming a carboxylic acid with one carbon atom less in the absence of the enzyme: (A) Catalase (B) Decarboxylase (C) Deaminase (D) Phosphatase

Description : The α-ketoacid is decarboxylated by H2O2 forming a carboxylic acid with one carbon atom less in the absence of the enzyme: (A) Catalase (B) Decarboxylase (C) Deaminase (D) Phosphatase

Last Answer : Answer : A

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

Assertion : The acrosomal secretions of sperm , help it in entering in the cytoplasm of the ovum . Reason : It contains sperm lysin .

Description : Assertion : The acrosomal secretions of sperm , help it in entering in the cytoplasm of the ovum . Reason : It contains sperm lysin .

Last Answer : Assertion : The acrosomal secretions of sperm , help it in entering in the cytoplasm of the ovum . ... . D. If both Assertion & Reason are False.

Assertion: Nucleus controls the metabolic activitie of cytoplasm. Reason: Nucleus synthesizes enzymes and send them to cytoplasm to control the activi

Description : Assertion: Nucleus controls the metabolic activitie of cytoplasm. Reason: Nucleus synthesizes enzymes and send them to cytoplasm to control the activi

Last Answer : Assertion: Nucleus controls the metabolic activitie of cytoplasm. Reason: Nucleus synthesizes enzymes and ... If both Assertion & Reason are false.

Assertion:- Centrosome does not show any kind of compartmentalisation of all cytoplasm. Reason:- Centrosome is devoid of membranous coverings.

Description : Assertion:- Centrosome does not show any kind of compartmentalisation of all cytoplasm. Reason:- Centrosome is devoid of membranous coverings.

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RNA that transfer amino acids from cytoplasm to ribosome

Description : RNA that transfer amino acids from cytoplasm to ribosome

Last Answer : Ans. m-RNA

The role of transfer RNS (IRNA) is to (a) Transfer mRNA from the nucleus to the cytoplasm (b) Carry amino acids from the cytoplasm to the nucleus (c) Carry the newly synthesised protein to its site of function in the cell (d) Transport amino acids to ribosomes

Description : The role of transfer RNS (IRNA) is to (a) Transfer mRNA from the nucleus to the cytoplasm (b) Carry amino acids from the cytoplasm to the nucleus (c) Carry the newly synthesised protein to its site of function in the cell (d) Transport amino acids to ribosomes

Last Answer : Ans:(d)

What is ocean acidification?

Description : What is ocean acidification?

Last Answer : Ocean acidification is the decrease in the pH of the Earth's oceans due to the absorption of carbon dioxide from the atmosphere, which can have harmful effects on marine life and ecosystems, and is an important concept in environmental science and climate change.

What is ocean acidification?

Description : What is ocean acidification?

Last Answer : Ocean acidification is the ongoing decrease in the pH of the Earth's oceans, primarily due to the absorption of carbon dioxide from the atmosphere, and is an important concept in marine science and environmental policy.

What is ocean acidification?

Description : What is ocean acidification?

Last Answer : Ocean acidification is the process by which the pH of the Earth's oceans decreases due to the absorption of carbon dioxide from the atmosphere, and is an important concept in marine biology and environmental science.

Phenol on treatment with `CO_(2)` in the presence of `NaOH` followed by acidification produces compound X as the major product. X on treatment with `(

Description : Phenol on treatment with `CO_(2)` in the presence of `NaOH` followed by acidification produces compound X as the major product. X on treatment with `(

Last Answer : Phenol on treatment with `CO_(2)` in the presence of `NaOH` followed by acidification produces compound X as the ... `H_(2)SO_(4)` produces B. C. D.

Which of the following reactants on reaction with conc. NaOH followed by acidification gives following lactone as the product?

Description : Which of the following reactants on reaction with conc. NaOH followed by acidification gives following lactone as the product?

Last Answer : Which of the following reactants on reaction with conc. NaOH followed by acidification gives following lactone as the product? A. B. C. D.

Which of the following reactants on reaction with conc. NaOH followed by acidification gives following lactone as the product?

Description : Which of the following reactants on reaction with conc. NaOH followed by acidification gives following lactone as the product?

Last Answer : Which of the following reactants on reaction with conc. NaOH followed by acidification gives following lactone as the product? A. B. C. D.

`20ml ofH_(2)O_(2)` after acidification with dilute `H_2SO_(4)`required 30mlof `(N)/(12)KMnO_4` for complete oxidation. The approximate strength of `H

Description : `20ml ofH_(2)O_(2)` after acidification with dilute `H_2SO_(4)`required 30mlof `(N)/(12)KMnO_4` for complete oxidation. The approximate strength of `H

Last Answer : `20ml ofH_(2)O_(2)` after acidification with dilute `H_2SO_(4)`required 30mlof `(N)/(12)KMnO_4` for ... (ing/L)is : [Molar mass of `H_2O_2=34`]

Which of the following salt liberates a colourless gas on acidification with dil. `H_(2)SO_(4)` ?

Description : Which of the following salt liberates a colourless gas on acidification with dil. `H_(2)SO_(4)` ?

Last Answer : Which of the following salt liberates a colourless gas on acidification with dil. `H_(2)SO_(4)` ? A. `KNO_(2)` ... (3)` C. `NaNO_(2)` D. `NaHCO_(3)`

Thiosulphate ion `(S_(2)O_(3)^(2-))` on acidification changes to `SO_(2)` along the precipitation of sulpur, `.^(35)S^(32) SO_(3)^(2-) + 2H^(+) to H_(

Description : Thiosulphate ion `(S_(2)O_(3)^(2-))` on acidification changes to `SO_(2)` along the precipitation of sulpur, `.^(35)S^(32) SO_(3)^(2-) + 2H^(+) to H_(

Last Answer : Thiosulphate ion `(S_(2)O_(3)^(2-))` on acidification changes to `SO_(2)` along the precipitation of sulpur, ` ... ` is in both D. `S^(35)` is in none

When phenol reactes with `CHCl_(3)` and NaOH followed by acidification, salicyladehyde is obtained. Which of the following species are involed in the

Description : When phenol reactes with `CHCl_(3)` and NaOH followed by acidification, salicyladehyde is obtained. Which of the following species are involed in the

Last Answer : When phenol reactes with `CHCl_(3)` and NaOH followed by acidification, salicyladehyde is obtained. Which of ... as intermediates ? A. B. C. D.

Which of the following combination of processing and preservation techniques works best for smoked products? A. Salt and acidification B. Heat, salt, dipping in brine/ minimal moisture content C. Heat, salt, acidification/minimal moisture content D. Heat and solid content

Description : Which of the following combination of processing and preservation techniques works best for smoked products? A. Salt and acidification B. Heat, salt, dipping in brine/ minimal moisture content C. Heat, salt, acidification/minimal moisture content D. Heat and solid content

Last Answer : B. Heat, salt, dipping in brine/ minimal moisture content

Which one of the following is the correct sequence for the events of phagocytosis? a. Cell attachment, acidification, phagosome formation, lysosome degradation b. Cell attachment, phagosome formation, acidification, lysosome degradation c. Phagosome formation, cell attachment, acidification. lysosome d. Cell attachment phagosome formation, lysosome degradation. acidification

Description : Which one of the following is the correct sequence for the events of phagocytosis? a. Cell attachment, acidification, phagosome formation, lysosome degradation b. Cell ... attachment, acidification. lysosome degradationd. Cell attachment phagosome formation, lysosome degradation. acidification

Last Answer : Cell attachment, phagosome formation, acidification, lysosome degradation

Basic-hydrolysis of esters is called (a) Acetylation (b) Acidification (c) Esterification (d) Saponification

Description : Basic-hydrolysis of esters is called (a) Acetylation (b) Acidification (c) Esterification (d) Saponification

Last Answer : Saponification

Reaction of an alcohol with organic acid is called the __________ reaction. (A) Saponification (B) Esterification (C) Neutralisation (D) Acidification

Description : Reaction of an alcohol with organic acid is called the __________ reaction. (A) Saponification (B) Esterification (C) Neutralisation (D) Acidification

Last Answer : (B) Esterification

Protein synthesis in an animal cell occurs (a) only on the ribosomes present in cytosol (b) only on ribosome attached to the nuclear envelope and endoplasmic reticulum (c) on ribosome present in the nucleolus as well as in cytoplasm (d) on ribosomes present in cytoplasm as well as in mitochondria.

Description : Protein synthesis in an animal cell occurs (a) only on the ribosomes present in cytosol (b) only on ribosome attached to the nuclear envelope and endoplasmic reticulum (c) on ribosome present in the ... as well as in cytoplasm (d) on ribosomes present in cytoplasm as well as in mitochondria.

Last Answer : (d) on ribosomes present in cytoplasm as well as in mitochondria.

The maximum formation of mRNA occurs in (a) ribosome (b) nucleoplasm (c) cytoplasm (d) nucleolus.

Description : The maximum formation of mRNA occurs in (a) ribosome (b) nucleoplasm (c) cytoplasm (d) nucleolus.

Last Answer : (b) nucleoplasm

.Protein synthesis in an animal cell occurs (a) only on the ribosomes present in cytosol (b) only on ribosome attached to the nuclear envelope and endoplasmic reticulum (c) on ribosome present in the nucleolus as well as in cytoplasm (d) on ribosomes present in cytoplasm as well as in mitochondria.

Description : .Protein synthesis in an animal cell occurs (a) only on the ribosomes present in cytosol (b) only on ribosome attached to the nuclear envelope and endoplasmic reticulum (c) on ribosome present in the ... as well as in cytoplasm (d) on ribosomes present in cytoplasm as well as in mitochondria.

Last Answer : (d) on ribosomes present in cytoplasm as well as in mitochondria.

The maximum formation of mRNA occurs in (a) ribosome (b) nucleoplasm (c) cytoplasm (d) nucleolus.

Description : The maximum formation of mRNA occurs in (a) ribosome (b) nucleoplasm (c) cytoplasm (d) nucleolus.

Last Answer : (d) nucleolus.

In which plants CAM pathway is present? -Biology

Description : In which plants CAM pathway is present? -Biology

Last Answer : answer:

CAM helps the plants in

Description : CAM helps the plants in

Last Answer : CAM helps the plants in A. Reproduction B. Conservation water C. Secondary growth D. Disease resistance

The first stable product in `CAM//C_(4)` plants is

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

The example of CAM plants are

Description : The example of CAM plants are

Last Answer : Ans. Pineapple and Opuntia

The CAM Plants are

Description : The CAM Plants are

Last Answer : Ans.Pineapple, khajur, cactus, sisal.

Photo-respiration rate is highest in which group of plants? (A) C3 plants (B) CAM plants (C)C4 plants (D) None of these

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

Kranz anatomy is typical of (a) C4 plants (b) C3 plants (c) C2 plants (d) CAM plants.

Description : Kranz anatomy is typical of (a) C4 plants (b) C3 plants (c) C2 plants (d) CAM plants.

Last Answer : (a) C4 plants

CAM helps the plants in (a) conserving water (b) secondary growth (c) disease resistance (d) reproduction.

Description : CAM helps the plants in (a) conserving water (b) secondary growth (c) disease resistance (d) reproduction.

Last Answer : (a) conserving water

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

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.

Source of `CO_(2)` for photosynthesis during day in CAM plant is

Description : Source of `CO_(2)` for photosynthesis during day in CAM plant is

Last Answer : Source of `CO_(2)` for photosynthesis during day in CAM plant is A. 3-PGA B. Malic acid C. Oxaloacetic acid D. Pyruvate

Assertion : Replication of DNA not occurs during interkinesis. Reason : Divison of chromosomes takes place during meiosis-II.

Description : Assertion : Replication of DNA not occurs during interkinesis. Reason : Divison of chromosomes takes place during meiosis-II.

Last Answer : Assertion : Replication of DNA not occurs during interkinesis. Reason : Divison of chromosomes takes place ... . If both Assertion & Reason are false.

Assertion : All birds, except the ones like koel (cuckoo) build nests for retiring and taking rest during night time (day time for noctumal) Reason :

Description : Assertion : All birds, except the ones like koel (cuckoo) build nests for retiring and taking rest during night time (day time for noctumal) Reason :

Last Answer : Assertion : All birds, except the ones like koel (cuckoo) build nests for retiring and taking rest ... D. If both Assertion and Reason are false.

Assertion :- In England, before industrialisation, it was observed that there were more white-winged moths on trees than dark-winged or melanised moth

Description : Assertion :- In England, before industrialisation, it was observed that there were more white-winged moths on trees than dark-winged or melanised moth

Last Answer : Assertion :- In England, before industrialisation, it was observed that there were more white-winged ... D. If both Assertion & Reason are false.

Assertion : Dark reactions of photosynthesis are temperauture -controlled processes. Reason : Most of the reactions are enzymatic in nature.

Description : Assertion : Dark reactions of photosynthesis are temperauture -controlled processes. Reason : Most of the reactions are enzymatic in nature.

Last Answer : Assertion : Dark reactions of photosynthesis are temperauture -controlled processes. Reason : Most of the ... If both Assertion and Reason are false.

Which of the following is true for photoperiodic? (1) It occurs only in plants (2) It is related to flowering in plants (3) It is related to feathers of animals (4) It is the reaction of organisms to the length of day or night

Description : Which of the following is true for photoperiodic? (1) It occurs only in plants (2) It is related to flowering in plants (3) It is related to feathers of animals (4) It is the reaction of organisms to the length of day or night

Last Answer : (4) It is the reaction of organisms to the length of day or night Explanation: Photoperiodism is the physiological reaction of organisms to the length of day or night. The term " ... Because flowers produce seeds, flowering is crucially important for the plant to complete its life cycle.

Which of the following is true for photoperiodic ? (1) It occurs only in plants (2) It is related to flowering in plants (3) It is related to feathers of animals (4) It is the reaction of organisms to the length of day or night

Description : Which of the following is true for photoperiodic ? (1) It occurs only in plants (2) It is related to flowering in plants (3) It is related to feathers of animals (4) It is the reaction of organisms to the length of day or night

Last Answer : It is the reaction of organisms to the length of day or night

De novo synthesis and oxidation of fatty acids differ in the following respect: (A) Synthesis occurs in cytosol and oxidation in mitochondria (B) Synthesis is decreased and oxidation increased by insulin (C) NADH is required in synthesis and FAD in oxidation (D) Malonyl CoA is formed during oxidation but not during synthesis

Description : De novo synthesis and oxidation of fatty acids differ in the following respect: (A) Synthesis occurs in cytosol and oxidation in mitochondria (B) Synthesis is decreased and oxidation increased by ... synthesis and FAD in oxidation (D) Malonyl CoA is formed during oxidation but not during synthesis

Last Answer : Answer : A

Assertion `:-` Fats are transported into the lacteals in the villi. Reason `:-` Fatty acids are insoluble in water.

Description : Assertion `:-` Fats are transported into the lacteals in the villi. Reason `:-` Fatty acids are insoluble in water.

Last Answer : Assertion `:-` Fats are transported into the lacteals in the villi. Reason `:-` Fatty acids are ... False. D. If both Assertion & Reason are false.

The final stage of the cell cycle, during which the cytoplasm divides, is called .?

Description : The final stage of the cell cycle, during which the cytoplasm divides, is called .?

Last Answer : cytoplasm

Cleavage divisions differ from normal mitotic divisions in that: (a) There is no nuclear division during cleavage (b) There is no division of cytoplasm during cleavage (c) The division of cytoplasm follows nuclear division (d) There is no period of growth in between divisions

Description : Cleavage divisions differ from normal mitotic divisions in that: (a) There is no nuclear division during cleavage (b) There is no division of cytoplasm during cleavage (c) The division of cytoplasm follows nuclear division (d) There is no period of growth in between divisions

Last Answer : Ans:(d)