C Photosynthetically active radiation range - The solar radiation absorbed for the photosynthesis process is in the range of 400-700 $\mathrm{nm}$ wavelength, i.e. the visible light spectrum. It is the optical range, which is not harmful for living organisms. Shorter wavelength are damaging to cells and are filtered by the ozone layer while longer wavelengths have less energy to carry out photosynthesis. Some bacteria like cyanobacteria can use extended spectral regions.
238024
The wavelength of light absorbed by Pr form of phytochrome is:-
1 $620 \mathrm{~nm}$
2 $640 \mathrm{~nm}$
3 $680 \mathrm{~nm}$
4 $720 \mathrm{~nm}$
Explanation:
C Phytochrome is basically a type of photoreceptor pigment, it's also help in controlling the flowering. - Phytochrome are two types. - Pr types and pfr types. - Pr is a blue form that absorb red light (wavelength of light $660-680 \mathrm{~nm}$ ). and Pfr is a blue-green form that absorbs far - red light (wavelength of light $730 \mathrm{~nm}$ ). - Pr type of light absorb a wavelength 660-680 nm.
C Chlorophyll ' $b$ ', Molecular formula $-\mathrm{C}_{55}$ $\mathrm{H}_{70} \mathrm{O} 6 \mathrm{~N}_{4} \mathrm{Mg}$ Found in all the green algae, bryophytes, pteridophytes, gymnosperms and angiosperms where reserve food is starch $25 \%$ has $\mathrm{CHO}$ (aldehyde) group at the 3 -carbon position and absorb $453,430,642 \mathrm{~nm}$ wavelength of light. Chlorophyll ' $a$ '- Molecular formula $-\mathrm{C}_{55} \mathrm{H}_{72} \mathrm{O}_{5} \mathrm{~N}_{4} \mathrm{Mg}$ It is universal pigment found in all the green plants, which evolve $\mathrm{O}_{2}$ bactera. It occurs $75 \%$ and has- $\mathrm{CH}_{3}$ group at the 3-carbon position and absorb-429, 410 $660,680 \mathrm{~nm}$ wave length of light.
JIPMER -2018 / BHU PMT(Mains)-2005
Photosynthesis in higher plants
238021
The colour of chlorophyll $b^{\prime \prime}$ in the chromatogram.
1 Yellow orange
2 Yellow
3 Bright or blue green
4 Yellow green
Explanation:
D Chlorophyll-b is in chromatogram show yellow-green color. Chlorophyll-b is a green pigment that absorbs blue and red light. It helps chlorophyll-a for absorbing light energy. - Yellow-orange, is the color of carotenoids. - Yellow is the color of xanthophylls. - Bright or blue green is the color of chlorophyll-a.
Shift-II
Photosynthesis in higher plants
238026
Phytochrome is a
1 flavoprotein
2 glycoprotein
3 lipoprotein
4 chromoprotein
Explanation:
D Phytochrome is a chromoprotein, which controls photoperiodism in plants. - It exist in two forms $-P_{r}$ and $P_{\text {fr }}$ forms. These two forms are interconvertible. - $\mathrm{P}_{\mathrm{r}}$ is a blue form that absorbs red light $(660 \mathrm{~nm})$ and $\mathrm{P}_{\mathrm{fr}}$ is a blue-green form that absorbs far-red light $(730 \mathrm{~nm})$. - When plants receive red light $\mathrm{P}_{\mathrm{r}}$ converts to $\mathrm{P}_{\mathrm{fr}}$ and vice versa.
C Photosynthetically active radiation range - The solar radiation absorbed for the photosynthesis process is in the range of 400-700 $\mathrm{nm}$ wavelength, i.e. the visible light spectrum. It is the optical range, which is not harmful for living organisms. Shorter wavelength are damaging to cells and are filtered by the ozone layer while longer wavelengths have less energy to carry out photosynthesis. Some bacteria like cyanobacteria can use extended spectral regions.
238024
The wavelength of light absorbed by Pr form of phytochrome is:-
1 $620 \mathrm{~nm}$
2 $640 \mathrm{~nm}$
3 $680 \mathrm{~nm}$
4 $720 \mathrm{~nm}$
Explanation:
C Phytochrome is basically a type of photoreceptor pigment, it's also help in controlling the flowering. - Phytochrome are two types. - Pr types and pfr types. - Pr is a blue form that absorb red light (wavelength of light $660-680 \mathrm{~nm}$ ). and Pfr is a blue-green form that absorbs far - red light (wavelength of light $730 \mathrm{~nm}$ ). - Pr type of light absorb a wavelength 660-680 nm.
C Chlorophyll ' $b$ ', Molecular formula $-\mathrm{C}_{55}$ $\mathrm{H}_{70} \mathrm{O} 6 \mathrm{~N}_{4} \mathrm{Mg}$ Found in all the green algae, bryophytes, pteridophytes, gymnosperms and angiosperms where reserve food is starch $25 \%$ has $\mathrm{CHO}$ (aldehyde) group at the 3 -carbon position and absorb $453,430,642 \mathrm{~nm}$ wavelength of light. Chlorophyll ' $a$ '- Molecular formula $-\mathrm{C}_{55} \mathrm{H}_{72} \mathrm{O}_{5} \mathrm{~N}_{4} \mathrm{Mg}$ It is universal pigment found in all the green plants, which evolve $\mathrm{O}_{2}$ bactera. It occurs $75 \%$ and has- $\mathrm{CH}_{3}$ group at the 3-carbon position and absorb-429, 410 $660,680 \mathrm{~nm}$ wave length of light.
JIPMER -2018 / BHU PMT(Mains)-2005
Photosynthesis in higher plants
238021
The colour of chlorophyll $b^{\prime \prime}$ in the chromatogram.
1 Yellow orange
2 Yellow
3 Bright or blue green
4 Yellow green
Explanation:
D Chlorophyll-b is in chromatogram show yellow-green color. Chlorophyll-b is a green pigment that absorbs blue and red light. It helps chlorophyll-a for absorbing light energy. - Yellow-orange, is the color of carotenoids. - Yellow is the color of xanthophylls. - Bright or blue green is the color of chlorophyll-a.
Shift-II
Photosynthesis in higher plants
238026
Phytochrome is a
1 flavoprotein
2 glycoprotein
3 lipoprotein
4 chromoprotein
Explanation:
D Phytochrome is a chromoprotein, which controls photoperiodism in plants. - It exist in two forms $-P_{r}$ and $P_{\text {fr }}$ forms. These two forms are interconvertible. - $\mathrm{P}_{\mathrm{r}}$ is a blue form that absorbs red light $(660 \mathrm{~nm})$ and $\mathrm{P}_{\mathrm{fr}}$ is a blue-green form that absorbs far-red light $(730 \mathrm{~nm})$. - When plants receive red light $\mathrm{P}_{\mathrm{r}}$ converts to $\mathrm{P}_{\mathrm{fr}}$ and vice versa.
C Photosynthetically active radiation range - The solar radiation absorbed for the photosynthesis process is in the range of 400-700 $\mathrm{nm}$ wavelength, i.e. the visible light spectrum. It is the optical range, which is not harmful for living organisms. Shorter wavelength are damaging to cells and are filtered by the ozone layer while longer wavelengths have less energy to carry out photosynthesis. Some bacteria like cyanobacteria can use extended spectral regions.
238024
The wavelength of light absorbed by Pr form of phytochrome is:-
1 $620 \mathrm{~nm}$
2 $640 \mathrm{~nm}$
3 $680 \mathrm{~nm}$
4 $720 \mathrm{~nm}$
Explanation:
C Phytochrome is basically a type of photoreceptor pigment, it's also help in controlling the flowering. - Phytochrome are two types. - Pr types and pfr types. - Pr is a blue form that absorb red light (wavelength of light $660-680 \mathrm{~nm}$ ). and Pfr is a blue-green form that absorbs far - red light (wavelength of light $730 \mathrm{~nm}$ ). - Pr type of light absorb a wavelength 660-680 nm.
C Chlorophyll ' $b$ ', Molecular formula $-\mathrm{C}_{55}$ $\mathrm{H}_{70} \mathrm{O} 6 \mathrm{~N}_{4} \mathrm{Mg}$ Found in all the green algae, bryophytes, pteridophytes, gymnosperms and angiosperms where reserve food is starch $25 \%$ has $\mathrm{CHO}$ (aldehyde) group at the 3 -carbon position and absorb $453,430,642 \mathrm{~nm}$ wavelength of light. Chlorophyll ' $a$ '- Molecular formula $-\mathrm{C}_{55} \mathrm{H}_{72} \mathrm{O}_{5} \mathrm{~N}_{4} \mathrm{Mg}$ It is universal pigment found in all the green plants, which evolve $\mathrm{O}_{2}$ bactera. It occurs $75 \%$ and has- $\mathrm{CH}_{3}$ group at the 3-carbon position and absorb-429, 410 $660,680 \mathrm{~nm}$ wave length of light.
JIPMER -2018 / BHU PMT(Mains)-2005
Photosynthesis in higher plants
238021
The colour of chlorophyll $b^{\prime \prime}$ in the chromatogram.
1 Yellow orange
2 Yellow
3 Bright or blue green
4 Yellow green
Explanation:
D Chlorophyll-b is in chromatogram show yellow-green color. Chlorophyll-b is a green pigment that absorbs blue and red light. It helps chlorophyll-a for absorbing light energy. - Yellow-orange, is the color of carotenoids. - Yellow is the color of xanthophylls. - Bright or blue green is the color of chlorophyll-a.
Shift-II
Photosynthesis in higher plants
238026
Phytochrome is a
1 flavoprotein
2 glycoprotein
3 lipoprotein
4 chromoprotein
Explanation:
D Phytochrome is a chromoprotein, which controls photoperiodism in plants. - It exist in two forms $-P_{r}$ and $P_{\text {fr }}$ forms. These two forms are interconvertible. - $\mathrm{P}_{\mathrm{r}}$ is a blue form that absorbs red light $(660 \mathrm{~nm})$ and $\mathrm{P}_{\mathrm{fr}}$ is a blue-green form that absorbs far-red light $(730 \mathrm{~nm})$. - When plants receive red light $\mathrm{P}_{\mathrm{r}}$ converts to $\mathrm{P}_{\mathrm{fr}}$ and vice versa.
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Photosynthesis in higher plants
238020
Wavelength of visibile light/PAR is
1 $200-400 \mathrm{~nm}$
2 $700-900 \mathrm{~nm}$
3 $400-700 \mathrm{~nm}$
4 $100-200 \mathrm{~nm}$
Explanation:
C Photosynthetically active radiation range - The solar radiation absorbed for the photosynthesis process is in the range of 400-700 $\mathrm{nm}$ wavelength, i.e. the visible light spectrum. It is the optical range, which is not harmful for living organisms. Shorter wavelength are damaging to cells and are filtered by the ozone layer while longer wavelengths have less energy to carry out photosynthesis. Some bacteria like cyanobacteria can use extended spectral regions.
238024
The wavelength of light absorbed by Pr form of phytochrome is:-
1 $620 \mathrm{~nm}$
2 $640 \mathrm{~nm}$
3 $680 \mathrm{~nm}$
4 $720 \mathrm{~nm}$
Explanation:
C Phytochrome is basically a type of photoreceptor pigment, it's also help in controlling the flowering. - Phytochrome are two types. - Pr types and pfr types. - Pr is a blue form that absorb red light (wavelength of light $660-680 \mathrm{~nm}$ ). and Pfr is a blue-green form that absorbs far - red light (wavelength of light $730 \mathrm{~nm}$ ). - Pr type of light absorb a wavelength 660-680 nm.
C Chlorophyll ' $b$ ', Molecular formula $-\mathrm{C}_{55}$ $\mathrm{H}_{70} \mathrm{O} 6 \mathrm{~N}_{4} \mathrm{Mg}$ Found in all the green algae, bryophytes, pteridophytes, gymnosperms and angiosperms where reserve food is starch $25 \%$ has $\mathrm{CHO}$ (aldehyde) group at the 3 -carbon position and absorb $453,430,642 \mathrm{~nm}$ wavelength of light. Chlorophyll ' $a$ '- Molecular formula $-\mathrm{C}_{55} \mathrm{H}_{72} \mathrm{O}_{5} \mathrm{~N}_{4} \mathrm{Mg}$ It is universal pigment found in all the green plants, which evolve $\mathrm{O}_{2}$ bactera. It occurs $75 \%$ and has- $\mathrm{CH}_{3}$ group at the 3-carbon position and absorb-429, 410 $660,680 \mathrm{~nm}$ wave length of light.
JIPMER -2018 / BHU PMT(Mains)-2005
Photosynthesis in higher plants
238021
The colour of chlorophyll $b^{\prime \prime}$ in the chromatogram.
1 Yellow orange
2 Yellow
3 Bright or blue green
4 Yellow green
Explanation:
D Chlorophyll-b is in chromatogram show yellow-green color. Chlorophyll-b is a green pigment that absorbs blue and red light. It helps chlorophyll-a for absorbing light energy. - Yellow-orange, is the color of carotenoids. - Yellow is the color of xanthophylls. - Bright or blue green is the color of chlorophyll-a.
Shift-II
Photosynthesis in higher plants
238026
Phytochrome is a
1 flavoprotein
2 glycoprotein
3 lipoprotein
4 chromoprotein
Explanation:
D Phytochrome is a chromoprotein, which controls photoperiodism in plants. - It exist in two forms $-P_{r}$ and $P_{\text {fr }}$ forms. These two forms are interconvertible. - $\mathrm{P}_{\mathrm{r}}$ is a blue form that absorbs red light $(660 \mathrm{~nm})$ and $\mathrm{P}_{\mathrm{fr}}$ is a blue-green form that absorbs far-red light $(730 \mathrm{~nm})$. - When plants receive red light $\mathrm{P}_{\mathrm{r}}$ converts to $\mathrm{P}_{\mathrm{fr}}$ and vice versa.
C Photosynthetically active radiation range - The solar radiation absorbed for the photosynthesis process is in the range of 400-700 $\mathrm{nm}$ wavelength, i.e. the visible light spectrum. It is the optical range, which is not harmful for living organisms. Shorter wavelength are damaging to cells and are filtered by the ozone layer while longer wavelengths have less energy to carry out photosynthesis. Some bacteria like cyanobacteria can use extended spectral regions.
238024
The wavelength of light absorbed by Pr form of phytochrome is:-
1 $620 \mathrm{~nm}$
2 $640 \mathrm{~nm}$
3 $680 \mathrm{~nm}$
4 $720 \mathrm{~nm}$
Explanation:
C Phytochrome is basically a type of photoreceptor pigment, it's also help in controlling the flowering. - Phytochrome are two types. - Pr types and pfr types. - Pr is a blue form that absorb red light (wavelength of light $660-680 \mathrm{~nm}$ ). and Pfr is a blue-green form that absorbs far - red light (wavelength of light $730 \mathrm{~nm}$ ). - Pr type of light absorb a wavelength 660-680 nm.
C Chlorophyll ' $b$ ', Molecular formula $-\mathrm{C}_{55}$ $\mathrm{H}_{70} \mathrm{O} 6 \mathrm{~N}_{4} \mathrm{Mg}$ Found in all the green algae, bryophytes, pteridophytes, gymnosperms and angiosperms where reserve food is starch $25 \%$ has $\mathrm{CHO}$ (aldehyde) group at the 3 -carbon position and absorb $453,430,642 \mathrm{~nm}$ wavelength of light. Chlorophyll ' $a$ '- Molecular formula $-\mathrm{C}_{55} \mathrm{H}_{72} \mathrm{O}_{5} \mathrm{~N}_{4} \mathrm{Mg}$ It is universal pigment found in all the green plants, which evolve $\mathrm{O}_{2}$ bactera. It occurs $75 \%$ and has- $\mathrm{CH}_{3}$ group at the 3-carbon position and absorb-429, 410 $660,680 \mathrm{~nm}$ wave length of light.
JIPMER -2018 / BHU PMT(Mains)-2005
Photosynthesis in higher plants
238021
The colour of chlorophyll $b^{\prime \prime}$ in the chromatogram.
1 Yellow orange
2 Yellow
3 Bright or blue green
4 Yellow green
Explanation:
D Chlorophyll-b is in chromatogram show yellow-green color. Chlorophyll-b is a green pigment that absorbs blue and red light. It helps chlorophyll-a for absorbing light energy. - Yellow-orange, is the color of carotenoids. - Yellow is the color of xanthophylls. - Bright or blue green is the color of chlorophyll-a.
Shift-II
Photosynthesis in higher plants
238026
Phytochrome is a
1 flavoprotein
2 glycoprotein
3 lipoprotein
4 chromoprotein
Explanation:
D Phytochrome is a chromoprotein, which controls photoperiodism in plants. - It exist in two forms $-P_{r}$ and $P_{\text {fr }}$ forms. These two forms are interconvertible. - $\mathrm{P}_{\mathrm{r}}$ is a blue form that absorbs red light $(660 \mathrm{~nm})$ and $\mathrm{P}_{\mathrm{fr}}$ is a blue-green form that absorbs far-red light $(730 \mathrm{~nm})$. - When plants receive red light $\mathrm{P}_{\mathrm{r}}$ converts to $\mathrm{P}_{\mathrm{fr}}$ and vice versa.
