Скачать или смотреть Photosynthesis class 11 biology chapter 12 exercise solutions

Photosynthesis class 11 biology chapter 12 exercise solutions


#solutions_made_easy #maharashtrastateboard
#ashish_madhwai #answers #solutions
#practical # maharashtraboard # class11 #class12

1. Choose correct option
A. A cell that lacks chloroplast does not
a. evolve carbon dioxide
b. liberate oxygen
c. require water
d. utilize carbohydrates.
B. Energy is transferred from the light
reaction step to the dark reaction step by
a. chlorophyll b. ADP
c. ATP d. RuBP
C. Which one is wrong in photorespiration
a. It occurs in chloroplasts
b. It occurs in day time only
c. It is characteristic of C4
-plants
c. It is characteristic of C3
-plants
D. Non-cyclic photophorylation differs
from cyclic photophosphorylation in that
former
a. involves only PS I
b. Include evolution of O2
c. involves formation of assimilatory
power
d. both 'b' and 'c'
E. For fixation of 6 molecules of CO2
and
formation of one molecule of glucose in
Calvin cycle, requires
a. 3 ATP and 2 NADPH2
b. 18 ATP and 12 NADPH2
c. 30 ATP and 18 NADPH2
d. 6 ATP and 6 NADPH2
F. In maize and wheat the first stable
products formed in bundle sheath cells
respectively are
a. OAA and PEPA
b. OAA and OAA
c. OAA and 3PGA
d. 3PGA and OAA
G. C4
pathway is also called as
dicarboxylation pathway because
a. RuBP + CO2
in bundle sheath cells
b. PEPA + CO2
in mesophyll cells
c. both 'a' and 'b'
d. It occurs in presence of intensive light
H. The head and tail of chlorophyll are
made up of
a. porphyrin and phytin respectively
b. pyrrole and tetrapyrrole respectively
c. prophyrin and phyrol respictively
d. tetrapyrole and pyrrole respectively
I. The net result of photo-oxidation of
water is release of
a. electron and proton
b. proton and oxygen
c. proton, electron and oxygen
d. electron and oxygen
J. For fixing one molecule of CO2
in Calvin
cycle, are required
a. 3ATP + 1NADPH2

b. 3ATP + 2NADPH2
c. 2ATP + 3NADPH2

d. 3ATP + 3NADPH2
K. In presence of high concentration of
oxygen, RuBP carboxylase converts
RuBP carboxylase converts RuBP to
a. Malic acid and PEP
b. PGA and PEP
c. PGA and malic acid
d. PGA and phosphoglycolate
L. The sequential order in electron transport
from PSII to PSI of photosynthesis is
a. FeS, PQ, PC and Cytochrome
b. FeS, PQ, Cytochrome and PC
c. PQ, Cytochrome, PC and FeS
d. PC, Cytochrome, FeS, PQ

2. Answer the following questions
A. Describe the light-dependent steps of
photosynthesis. How are they linked to
the dark reactions?
B. Distinguish between: a. respiration
and photorespiration b. absorption
spectrum and action spectrum c. cyclic
photophosphorylation and non-cyclic
photophosphorylation
C. What are the steps that are common to C3
and C4
photosynthesis?
D. Are the enzymes that catalyse the dark
reactions of carbon fixation located inside
the thylakoids or outside the thylakoids?
E. Calvin cycle consists of three phases,
what are they? Explain the significance
of each of them.
F. Why are the plants that consume more
than the usual 18 ATP to produce 1
molecule of glucose favoured in tropical
regions?
G. What is the advantage of having
more than one pigment molecule in a
photocentre?
H. Why does chlorophyll appear green
in reflected light and red transmitted
light? Explain the significance of these
phenomena in terms of photosynthesis.
I. Explain why photosynthesis is considered
the most important process in the
biosphere.
J. Why is photolysis of water accompained
with non-cyclic photophosphorylation?
K. In C-4 plants, why is C-3 pathway
operated in bundle sheath cells only?
L. What would have happed if C-4 plants
did not have Kranz anatomy?
M. Why does RnBisCo carry out
preferentially carboxylation than
oxygenation in C4 plants?
N. What would have happened if plants did
not have accessoy pigments?

photosynthesis class 11
photosynthesis class 11 biology
photosynthesis 11th class biology exercise
photosynthesis 11th class biology state board exercise
class 11 biology photosynthesis exercise
class 11 biology chapter 12 photosynthesis exercise
photosynthesis exercise class 11 solutions

Class 11 Physics practical:    • Class 11 Physics practical  


Class 11 chemistry all exercise solutions:    • Class 11 chemistry all exercise solutions  

Class 11 biology all exercises solutions:    • Class 11 biology all exercises solutions  

Class 11 biology practical answers:    • Class 11 biology practical answers  

Check out my Instagram profile and follow for direct messages.🤗
https://instagram.com/ashish_madhwai?...

join telegram group
https://t.me/+BLbkP00z9uI1MGVl