Which pigment system is inactivated in red drop? (a) PS-I and PS-II (b) PS-I (c) PS-II (d) None of these

Which pigment system is inactivated in red drop?
(a) PS-I and PS-II (b) PS-I
(c) PS-II (d) None of these
by

1 Answer

Answer :

(c) PS-II
by

Related questions

During light reaction of photosynthesis, which of the following phenomenon is observed during cyclic phosphorylation as well as non-cyclic phosphorylation? (a) Release of O2 (b) Formation of ATP (c) Formation of NADPH (d) Involvement of PS I and PS II pigment systems

Description : During light reaction of photosynthesis, which of the following phenomenon is observed during cyclic phosphorylation as well as non-cyclic phosphorylation? (a) Release of O2 (b) Formation of ATP (c) Formation of NADPH (d) Involvement of PS I and PS II pigment systems

Last Answer : (b) Formation of ATP

Match each disease with its correct type of vaccine. Column I Column II A. Tuberculosis (i) Harmless virus B. Whooping cough (ii) Inactivated toxin C. Diphtheria (iii)Killed bacteria D. Polio (iv) Harmless bacteria (a) A-(iv), B-(iii), C-(ii), D-(i) (b) A-(i), B-(ii), C-(iv), D-(iii) (c) A-(ii), B-(i), C-(iii), D-(iv) (d) A-(iii), B-(ii), C-(iv), D-(i)

Description : Match each disease with its correct type of vaccine. Column I Column II A. Tuberculosis (i) Harmless virus B. Whooping cough (ii) Inactivated toxin C. Diphtheria (iii)Killed bacteria D. Polio (iv) Harmless bacteria (a) A-(iv), B-(iii), C- ... B-(i), C-(iii), D-(iv) (d) A-(iii), B-(ii), C-(iv), D-(i)

Last Answer : a) A-(iv), B-(iii), C-(ii), D-(i)

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.

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.

Primary electron acceptor of PS-II is

Description : Primary electron acceptor of PS-II is

Last Answer : Primary electron acceptor of PS-II is A. Pheophytin B. Ferredoxin C. PQ D. PC

PS II is found in

Description : PS II is found in

Last Answer : PS II is found in A. Stacked part of granum B. Non-stacked part of granum C. Stroma thylakoid D. Stroma

`P_(680)` is calld PS II ! C-4 plants hav photorespiration.

Description : `P_(680)` is calld PS II ! C-4 plants hav photorespiration.

Last Answer : `P_(680)` is calld PS II ! C-4 plants hav photorespiration. A. If both As and R are correct and R is ... , R is wrong D. If both As and R are wrong.

In PS I the reaction centre chlorophyll a has an absorption peak at 700 nm, hence is called (A)____ while in PS II it has absorption maxima at 680 nm

Description : In PS I the reaction centre chlorophyll a has an absorption peak at 700 nm, hence is called (A)____ while in PS II it has absorption maxima at 680 nm

Last Answer : In PS I the reaction centre chlorophyll a has an absorption peak at 700 nm, hence is called (A) ... absorption maxima at 680 nm and is called (B)____

Carbon dioxide joins the photosynthetic pathway in (a) PS I (b) PS II (c) light reaction (d) dark reaction

Description : Carbon dioxide joins the photosynthetic pathway in (a) PS I (b) PS II (c) light reaction (d) dark reaction

Last Answer : d) dark reaction.

NADP+ is reduced to NADPH in (a) PS I (b) PS II (c) Calvin cycle (d) noncyclic photophosphorylation.

Description : NADP+ is reduced to NADPH in (a) PS I (b) PS II (c) Calvin cycle (d) noncyclic photophosphorylation.

Last Answer : (d) noncyclic photophosphorylation.

In light reaction, plastoquinone facilitates the transfer of electrons from (a) PS-II to Cytb6f complex (b) Cytb6f complex to PS-I (c) PS-I to NADP+ (d) PS-I to ATP synthase.

Description : In light reaction, plastoquinone facilitates the transfer of electrons from (a) PS-II to Cytb6f complex (b) Cytb6f complex to PS-I (c) PS-I to NADP+ (d) PS-I to ATP synthase.

Last Answer : (a) PS-II to Cytb6f complex

Ferredoxin is a constituent of (a) PS I (b) PS II (c) Hill reaction (d) P680.

Description : Ferredoxin is a constituent of (a) PS I (b) PS II (c) Hill reaction (d) P680.

Last Answer : (a) PS I

Positive control of induction is best described as a control system in which an operon functions (A) Unless it is switched off by a derepressed repressor protein (B) Only after a repressor protein is inactivated by an inducer (C) Only after an inducer protein, which can be inactivated by a corepressor, switches it on (D) Only after an inducer protein, which is activated by an inducer, switch it on

Description : Positive control of induction is best described as a control system in which an operon functions (A) Unless it is switched off by a derepressed repressor protein (B) Only after a repressor protein is ... on (D) Only after an inducer protein, which is activated by an inducer, switch it on

Last Answer : Answer : D

When eggs are cooked (A) Biotin is destroyed but avidin remains unaffected (B) Avidin is inactivated but biotin remains unaffected (C) Both avidin and biotin are inactivated (D) Both avidin and biotin remain unaffected

Description : When eggs are cooked (A) Biotin is destroyed but avidin remains unaffected (B) Avidin is inactivated but biotin remains unaffected (C) Both avidin and biotin are inactivated (D) Both avidin and biotin remain unaffected

Last Answer : Answer : B

Prostaglandins are inactivated by (A) 15-Hydroxyprostaglandin dehydrogenase (B) Cyclo-oxygenase (C) Lipo-oxygenase (D) None of these

Description : Prostaglandins are inactivated by (A) 15-Hydroxyprostaglandin dehydrogenase (B) Cyclo-oxygenase (C) Lipo-oxygenase (D) None of these

Last Answer : Answer : A

Zymogen is (A) An intracellular enzyme (B) Serum enzyme (C) A complete extracellular enzyme (D) An inactivated enzyme

Description : Zymogen is (A) An intracellular enzyme (B) Serum enzyme (C) A complete extracellular enzyme (D) An inactivated enzyme

Last Answer : Answer : D

Compared to older tetracyclines, doxycycline produces a lower incidence of superinfection diarrhoea because (a) It is completely absorbed in the small intestines so that drug concentration in the colonic contents is low (b) It is inactivated by the gut microflora (c) It is not active against the microbes of the normal gut flora (d) It is a potent tetracycline and inhibits the superinfection causing microbes as well

Description : Compared to older tetracyclines, doxycycline produces a lower incidence of superinfection diarrhoea because (a) It is completely absorbed in the small intestines so that drug concentration in the colonic ... (d) It is a potent tetracycline and inhibits the superinfection causing microbes as well

Last Answer : Ans: A

How is prostaglandins inactivated?

Description : How is prostaglandins inactivated? 

Last Answer : Prostaglandins have only very short half life, of about 30 seconds. They are inactivated by the 15- hydroxy-prostaglandin-dehydrogenase which converts 15-OH group to keto group.

What are Killed (inactivated) vaccines?

Description : What are Killed (inactivated) vaccines?

Last Answer : When safe live vaccines are not available, either because attenuated strains have not been developed or else because reversion to wild type occurs too readily, it may be possible to use an ... site. However, the same disadvantages of poor immunogenicity and the need for multiple boosters apply. 

How are the neurotransmitter molecules inactivated after they are released at a synapse?

Description : How are the neurotransmitter molecules inactivated after they are released at a synapse?

Last Answer : After a chemical neurotransmitter has been released from the synaptic terminal, its action must be terminated in some way. Otherwise, the continued presence of the transmitter in the ... mechanism is used to inactivate Acetylcholine released from the synaptic terminals of the motor neurons.

The following are true about the neurotransmitters: a. acetylcholine is inactivated mainly by presynaptic reuptake b. tyrosine is essential for the formation of dopamine c. noradrenaline is inactivated mainly by hydrolysis d. adrenaline is formed from methylation of the noradrenaline

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Last Answer : adrenaline is formed from methylation of the noradrenaline

True statements about the following neurotransmitters include: a. dopamine is formed from tyrosine b. in the synapse, noradrenaline is inactivated by active reuptake into the presynpatic terminals c. noradrenaline is formed by hydroxylation of dopamine d. all above

Description : True statements about the following neurotransmitters include: a. dopamine is formed from tyrosine b. in the synapse, noradrenaline is inactivated by active reuptake into the presynpatic terminals c. noradrenaline is formed by hydroxylation of dopamine d. all above

Last Answer : all above

The following are true about acetylcholine: a. it is synthesized from acetyl-coenzyme A and choline b. its formation is catalysed by acetylcholinesterase c. at the synaptic cleft, it is inactivated by hydrolysis d. reuptake by the presynaptic neurones play an important in inactivating acetylcholine

Description : The following are true about acetylcholine: a. it is synthesized from acetyl-coenzyme A and choline b. its formation is catalysed by acetylcholinesterase c. at the synaptic cleft, ... inactivated by hydrolysis d. reuptake by the presynaptic neurones play an important in inactivating acetylcholine

Last Answer : at the synaptic cleft, it is inactivated by hydrolysis

G-proteins: a. are activated by the binding of an extracellular ligand to a membrane receptor b. can be mutated in tumour cells c. mediate the action of glucocorticoid hormone d. they are inactivated by cholera toxins

Description : G-proteins: a. are activated by the binding of an extracellular ligand to a membrane receptor b. can be mutated in tumour cells c. mediate the action of glucocorticoid hormone d. they are inactivated by cholera toxins

Last Answer : are activated by the binding of an extracellular ligand to a membrane receptor

True statements about chromosome include: a. 23 chromosomes are found in germinal cells b. in female only one chromosome is activated c. the Barr body is due to inactivated X chromosome e. all above

Description : True statements about chromosome include: a. 23 chromosomes are found in germinal cells b. in female only one chromosome is activated c. the Barr body is due to inactivated X chromosome e. all above

Last Answer : all above

If the growing plant is decapitated, then (a) its growth stops (b) leaves become yellow and fall down (c) axillary buds are inactivated (d) axillary buds are activated.

Description : If the growing plant is decapitated, then (a) its growth stops (b) leaves become yellow and fall down (c) axillary buds are inactivated (d) axillary buds are activated.

Last Answer : (d) axillary buds are activated.

If by radiation all nitrogenase enzyme are inactivated, then there will be no (a) fixation of nitrogen in legumes (b) fixation of atmospheric nitrogen (c) conversion from nitrate to nitrite in legumes (d) conversion from ammonium to nitrate in soil.

Description : If by radiation all nitrogenase enzyme are inactivated, then there will be no (a) fixation of nitrogen in legumes (b) fixation of atmospheric nitrogen (c) conversion from nitrate to nitrite in legumes (d) conversion from ammonium to nitrate in soil.

Last Answer : (a) fixation of nitrogen in legumes

Why are inactivated vaccines safer than attenuated vaccines? a. they can't mutate and cause the disease b. they last a lifetime c. they are easier to administer d. they aren't any better

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A/an _____ vaccine contains inactivated toxins. a. toxigenicb. toxoid c. antitoxin d. immunotoxic

Description : A/an _____ vaccine contains inactivated toxins. a. toxigenic b. toxoid c. antitoxin d. immunotoxic

Last Answer : b. toxoid

Which investigator developed a polio vaccine containing inactivated viruses? a. Enders b. Sabin c. Jenner d. Salk

Description : Which investigator developed a polio vaccine containing inactivated viruses? a. Enders b. Sabin c. Jenner d. Salk

Last Answer : b. Sabin

Rivers' postulates can be used toa. locate an oncogene in a cell that is cancerous. b. develop inactivated viruses for use in a vaccine. c. eliminate viruses with certain chemical agents. d. relate a particular virus to a particular disease.

Description : Rivers' postulates can be used to a. locate an oncogene in a cell that is cancerous. b. develop inactivated viruses for use in a vaccine. c. eliminate viruses with certain chemical agents. d. relate a particular virus to a particular disease.

Last Answer : d. relate a particular virus to a particular disease.

When eggs are cooked (A) Biotin is destroyed but avidin remains unaffected (B) Avidin is inactivated but biotin remains unaffected (C) Both avidin and biotin are inactivated (D) Both avidin and biotin remain unaffected

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Last Answer : (B) Avidin is inactivated but biotin remains unaffected

To prepare soils for the bioassay, her bicides get inactivated by a). Darco G-60 b). Activated charcoal c). a & b d). None

Description : To prepare soils for the bioassay, her bicides get inactivated by a). Darco G-60 b). Activated charcoal c). a & b d). None

Last Answer : c). a & b

Metronidazole is selectively active against anaerobic organisms because: A. Aerobes have an active transport mechanism to pump it out of their cell B. Only anaerobes reduce it to generate the reactive nitro radical C. It is rapidly inactivated in the presence of oxygen D. It binds to DNA of anaerobes with high affinity

Description : Metronidazole is selectively active against anaerobic organisms because: A. Aerobes have an active transport mechanism to pump it out of their cell B. Only anaerobes reduce it to generate the reactive ... inactivated in the presence of oxygen D. It binds to DNA of anaerobes with high affinity

Last Answer : B. Only anaerobes reduce it to generate the reactive nitro radical

Compared to older tetracyclines, doxycycline produces a lower incidence of superinfection diarrhoea because: A. It is completely absorbed in the small intestines so that drug concentration in the colonic contents is low B. It is inactivated by the gut microflora C. It is not active against the microbes of the normal gut flora D. It is a potent tetracycline and inhibits

Description : Compared to older tetracyclines, doxycycline produces a lower incidence of superinfection diarrhoea because: A. It is completely absorbed in the small intestines so that drug concentration in the colonic contents ... the microbes of the normal gut flora D. It is a potent tetracycline and inhibits

Last Answer : A. It is completely absorbed in the small intestines so that drug concentration in the colonic contents is low

yocardial Na+ channel blockade by lignocaine has the following characteristic: A. It blocks inactivated Na+ channels more than activated channels B. It blocks activated Na+ channels more than inactivated channels C. It delays rate of recovery of Na+ channels D. It produces more prominent blockade of atrial than ventricular Na+ channels

Description : yocardial Na+ channel blockade by lignocaine has the following characteristic: A. It blocks inactivated Na+ channels more than activated channels B. It blocks activated Na+ channels more than inactivated ... Na+ channels D. It produces more prominent blockade of atrial than ventricular Na+ channels

Last Answer : A. It blocks inactivated Na+ channels more than activated channels

Pralidoxime can reactivate cholinesterase enzyme that has been inactivated by: A. Carbamate anticholinesterases B. Organophosphate anticholinesterases C. Both carbamate and organophosphate anticholinesterases D. Reversible anticholinesterases

Description : Pralidoxime can reactivate cholinesterase enzyme that has been inactivated by: A. Carbamate anticholinesterases B. Organophosphate anticholinesterases C. Both carbamate and organophosphate anticholinesterases D. Reversible anticholinesterases

Last Answer : B. Organophosphate anticholinesterases

Pralidoxime can reactivate cholinesterase enzyme that has been inactivated by: A. Carbamate anticholinesterases B. Organophosphate anticholinesterases C. Both carbamate and organophosphate anticholinesterases D. Reversible anticholinesterases

Description : Pralidoxime can reactivate cholinesterase enzyme that has been inactivated by: A. Carbamate anticholinesterases B. Organophosphate anticholinesterases C. Both carbamate and organophosphate anticholinesterases D. Reversible anticholinesterases

Last Answer : B. Organophosphate anticholinesterases

Below freezing point an enzyme is (a) Inactivated (b) Activated (c) Destroyed (d) Unaffected

Description : Below freezing point an enzyme is (a) Inactivated (b) Activated (c) Destroyed (d) Unaffected

Last Answer : (a) Inactivated

What pigment is found in red algae? -Biology

Description : What pigment is found in red algae? -Biology

Last Answer : answer:

Respiratory pigment Fe containing but red in colour `:-`

Description : Respiratory pigment Fe containing but red in colour `:-`

Last Answer : Respiratory pigment Fe containing but red in colour `:-` A. Haemocyanin (Molluscas) B. Haemoglobin ... ) C. Chlorocruorin (Some annelids) D. None

The piament involved in red - far red light interconversion is Or The pigm,ent involved in photomorphogenetic movements is Or Pigment involved in phot

Description : The piament involved in red - far red light interconversion is Or The pigm,ent involved in photomorphogenetic movements is Or Pigment involved in phot

Last Answer : The piament involved in red - far red light interconversion is Or The pigm,ent involved in ... Carotene B. Phytochrome C. Cytochrome D. Lycopene

The purplish red pigment rhodopsin contained in the rods type of photoreceptor cells of the human eye, is a derivative of

Description : The purplish red pigment rhodopsin contained in the rods type of photoreceptor cells of the human eye, is a derivative of

Last Answer : The purplish red pigment rhodopsin contained in the rods type of photoreceptor cells of the human eye, is a ... Vitamin B 1 C. Vitamin C D. Vitamin D

What is red yellow and orange pigment found within chloroplast's?

Description : What is red yellow and orange pigment found within chloroplast's?

Last Answer : What is the answer ?

What pigment reflects orange yellow and red and absorbs the other colors to provide energy for photosynthesis?

Description : What pigment reflects orange yellow and red and absorbs the other colors to provide energy for photosynthesis?

Last Answer : Carotenoids.

A pigment responsible for red colour in tomato

Description : A pigment responsible for red colour in tomato

Last Answer : Ans. Lycopene

Red pigment in litchi is due to

Description : Red pigment in litchi is due to

Last Answer : Ans. Anthocyanin

The red coloured pigment in 'sindur'?

Description : The red coloured pigment in 'sindur'?

Last Answer : Trilead Tetroxide

Most of the red; blue and purple colours of plants are due to a pigment called?

Description : Most of the red; blue and purple colours of plants are due to a pigment called?

Last Answer : anthocyanin

What are the primary colors of Pigment? A. White, Black, Blue B. Red, Yellow, Blue (Answer) C. Red, Orange, Blue D. Red, Green, Blue

Description : What are the primary colors of Pigment? A. White, Black, Blue B. Red, Yellow, Blue (Answer) C. Red, Orange, Blue D. Red, Green, Blue

Last Answer : B. Red, Yellow, Blue (Answer)

Rhodopsin: a. is a red pigment b. is least sensitive to red light c. is regenerated when the eyes are closed d. all above

Description : Rhodopsin: a. is a red pigment b. is least sensitive to red light c. is regenerated when the eyes are closed d. all above

Last Answer : all above