238008
What change occurs during conversion of proto chlorophyll to chlorophyll
1 Addition of $2 \mathrm{H}$ in one pyrrole ring
2 Loss of $2 \mathrm{H}$
3 Addition of $\mathrm{Mg}$
4 Loss of $\mathrm{Mg}$
Explanation:
A The conversion of proto chlorophyll to chlorophyll involves the addition of two hydrogen atoms to one of the pyrrole rings. This changes the structure of the ring and makes it more stable. The magnesium atom is not added until later in the process. The chemical reaction- Protochlrophyllide $+2 \mathrm{H} \rightarrow$ chlorophyllide chlorophyllide $+\mathrm{Mg}^{2+} \rightarrow$ chlorophyll. - Protochlorophyllide is the precursor to chlorophyll. It is a colorless compound that is converted to chlorophyll in the presence of light and magnesium ions.
AIPMT-1998
Photosynthesis in higher plants
238011
Chloroplast has maximum quantity of............in stroma.
1 Dehydrogenase
2 RuBP carboxylase
3 Pyruvic carboxylase
4 Hexokinase
Explanation:
B RuBP carboxylase is the enzyme that catalyzes the first step of the Calvin cycle, which is the light independent reactions of photosynthesis. It is the most abundant protein on earth, and it is found in the stroma of the chloroplast. - Dehydrogenase is an enzyme that catalyzes the oxidation- reduction reactions of cellular metabolism. - Hexokinase is an enzymes that catalyzes the carboxylation of pyruvic acid.
MGIMS Wardha-2011
Photosynthesis in higher plants
238013
In the process of photosynthesis water molecule breaks is:
1 red drop
2 photolysis
3 phosphorylation
4 carbon assimilation
Explanation:
B Photolysis is the process of splitting water molecules into hydrogen and oxygen using light energy. It occurs in the thylakoid membrane of the chloroplast, which is where the light dependent reactions of photosynthesis takes place. - Red drop is a phenomenon that occurs in the absorption spectrum of chlorophyll when the light intensity is very high.
JCECE-2005
Photosynthesis in higher plants
238014
Oxygen is released from:
1 cytoplasm
2 golgi body
3 chloroplast
4 mitochondria
Explanation:
C The oxygen released during photosynthesis is a byproduct of light-dependent reactions, which take place in the thylakoid membranes of the chloroplast. The light energy is used to split water molecules into oxygen and hydrogen ions. The oxygen is released to into atmosphere, while the hydrogen ions are used to produces ATP. The oxygen released by plant is essential for life on earth.
238008
What change occurs during conversion of proto chlorophyll to chlorophyll
1 Addition of $2 \mathrm{H}$ in one pyrrole ring
2 Loss of $2 \mathrm{H}$
3 Addition of $\mathrm{Mg}$
4 Loss of $\mathrm{Mg}$
Explanation:
A The conversion of proto chlorophyll to chlorophyll involves the addition of two hydrogen atoms to one of the pyrrole rings. This changes the structure of the ring and makes it more stable. The magnesium atom is not added until later in the process. The chemical reaction- Protochlrophyllide $+2 \mathrm{H} \rightarrow$ chlorophyllide chlorophyllide $+\mathrm{Mg}^{2+} \rightarrow$ chlorophyll. - Protochlorophyllide is the precursor to chlorophyll. It is a colorless compound that is converted to chlorophyll in the presence of light and magnesium ions.
AIPMT-1998
Photosynthesis in higher plants
238011
Chloroplast has maximum quantity of............in stroma.
1 Dehydrogenase
2 RuBP carboxylase
3 Pyruvic carboxylase
4 Hexokinase
Explanation:
B RuBP carboxylase is the enzyme that catalyzes the first step of the Calvin cycle, which is the light independent reactions of photosynthesis. It is the most abundant protein on earth, and it is found in the stroma of the chloroplast. - Dehydrogenase is an enzyme that catalyzes the oxidation- reduction reactions of cellular metabolism. - Hexokinase is an enzymes that catalyzes the carboxylation of pyruvic acid.
MGIMS Wardha-2011
Photosynthesis in higher plants
238013
In the process of photosynthesis water molecule breaks is:
1 red drop
2 photolysis
3 phosphorylation
4 carbon assimilation
Explanation:
B Photolysis is the process of splitting water molecules into hydrogen and oxygen using light energy. It occurs in the thylakoid membrane of the chloroplast, which is where the light dependent reactions of photosynthesis takes place. - Red drop is a phenomenon that occurs in the absorption spectrum of chlorophyll when the light intensity is very high.
JCECE-2005
Photosynthesis in higher plants
238014
Oxygen is released from:
1 cytoplasm
2 golgi body
3 chloroplast
4 mitochondria
Explanation:
C The oxygen released during photosynthesis is a byproduct of light-dependent reactions, which take place in the thylakoid membranes of the chloroplast. The light energy is used to split water molecules into oxygen and hydrogen ions. The oxygen is released to into atmosphere, while the hydrogen ions are used to produces ATP. The oxygen released by plant is essential for life on earth.
238008
What change occurs during conversion of proto chlorophyll to chlorophyll
1 Addition of $2 \mathrm{H}$ in one pyrrole ring
2 Loss of $2 \mathrm{H}$
3 Addition of $\mathrm{Mg}$
4 Loss of $\mathrm{Mg}$
Explanation:
A The conversion of proto chlorophyll to chlorophyll involves the addition of two hydrogen atoms to one of the pyrrole rings. This changes the structure of the ring and makes it more stable. The magnesium atom is not added until later in the process. The chemical reaction- Protochlrophyllide $+2 \mathrm{H} \rightarrow$ chlorophyllide chlorophyllide $+\mathrm{Mg}^{2+} \rightarrow$ chlorophyll. - Protochlorophyllide is the precursor to chlorophyll. It is a colorless compound that is converted to chlorophyll in the presence of light and magnesium ions.
AIPMT-1998
Photosynthesis in higher plants
238011
Chloroplast has maximum quantity of............in stroma.
1 Dehydrogenase
2 RuBP carboxylase
3 Pyruvic carboxylase
4 Hexokinase
Explanation:
B RuBP carboxylase is the enzyme that catalyzes the first step of the Calvin cycle, which is the light independent reactions of photosynthesis. It is the most abundant protein on earth, and it is found in the stroma of the chloroplast. - Dehydrogenase is an enzyme that catalyzes the oxidation- reduction reactions of cellular metabolism. - Hexokinase is an enzymes that catalyzes the carboxylation of pyruvic acid.
MGIMS Wardha-2011
Photosynthesis in higher plants
238013
In the process of photosynthesis water molecule breaks is:
1 red drop
2 photolysis
3 phosphorylation
4 carbon assimilation
Explanation:
B Photolysis is the process of splitting water molecules into hydrogen and oxygen using light energy. It occurs in the thylakoid membrane of the chloroplast, which is where the light dependent reactions of photosynthesis takes place. - Red drop is a phenomenon that occurs in the absorption spectrum of chlorophyll when the light intensity is very high.
JCECE-2005
Photosynthesis in higher plants
238014
Oxygen is released from:
1 cytoplasm
2 golgi body
3 chloroplast
4 mitochondria
Explanation:
C The oxygen released during photosynthesis is a byproduct of light-dependent reactions, which take place in the thylakoid membranes of the chloroplast. The light energy is used to split water molecules into oxygen and hydrogen ions. The oxygen is released to into atmosphere, while the hydrogen ions are used to produces ATP. The oxygen released by plant is essential for life on earth.
238008
What change occurs during conversion of proto chlorophyll to chlorophyll
1 Addition of $2 \mathrm{H}$ in one pyrrole ring
2 Loss of $2 \mathrm{H}$
3 Addition of $\mathrm{Mg}$
4 Loss of $\mathrm{Mg}$
Explanation:
A The conversion of proto chlorophyll to chlorophyll involves the addition of two hydrogen atoms to one of the pyrrole rings. This changes the structure of the ring and makes it more stable. The magnesium atom is not added until later in the process. The chemical reaction- Protochlrophyllide $+2 \mathrm{H} \rightarrow$ chlorophyllide chlorophyllide $+\mathrm{Mg}^{2+} \rightarrow$ chlorophyll. - Protochlorophyllide is the precursor to chlorophyll. It is a colorless compound that is converted to chlorophyll in the presence of light and magnesium ions.
AIPMT-1998
Photosynthesis in higher plants
238011
Chloroplast has maximum quantity of............in stroma.
1 Dehydrogenase
2 RuBP carboxylase
3 Pyruvic carboxylase
4 Hexokinase
Explanation:
B RuBP carboxylase is the enzyme that catalyzes the first step of the Calvin cycle, which is the light independent reactions of photosynthesis. It is the most abundant protein on earth, and it is found in the stroma of the chloroplast. - Dehydrogenase is an enzyme that catalyzes the oxidation- reduction reactions of cellular metabolism. - Hexokinase is an enzymes that catalyzes the carboxylation of pyruvic acid.
MGIMS Wardha-2011
Photosynthesis in higher plants
238013
In the process of photosynthesis water molecule breaks is:
1 red drop
2 photolysis
3 phosphorylation
4 carbon assimilation
Explanation:
B Photolysis is the process of splitting water molecules into hydrogen and oxygen using light energy. It occurs in the thylakoid membrane of the chloroplast, which is where the light dependent reactions of photosynthesis takes place. - Red drop is a phenomenon that occurs in the absorption spectrum of chlorophyll when the light intensity is very high.
JCECE-2005
Photosynthesis in higher plants
238014
Oxygen is released from:
1 cytoplasm
2 golgi body
3 chloroplast
4 mitochondria
Explanation:
C The oxygen released during photosynthesis is a byproduct of light-dependent reactions, which take place in the thylakoid membranes of the chloroplast. The light energy is used to split water molecules into oxygen and hydrogen ions. The oxygen is released to into atmosphere, while the hydrogen ions are used to produces ATP. The oxygen released by plant is essential for life on earth.
