Match each item in Column I with one item in Column II regarding plant adaptation to water scarcity andchose your answer from the codes given below:
Column I                                              Column II
I. Deep tap root                                   1. Oleander
II. Sunken stomata                              2. Prosopis
III. Deciduous leaves                           3. Capparis decidua
IV. CAM pathway                                 4. Orchids
Codes:
       I    II   III   IV
  • D.    1    2    4    3

  • C.    2    1    3    4
  • A.    1    2    3    4
  • B.    2    1    4    3

In the diagrammatic representation of the Hatch and Slack pathway, A and B respectively
represent:

  • Mesophyll cells and Bundle sheath cells

  • Bundle sheath cells and Mesophyll cells
  • Bundle sheath cells and Pallisade cells
  • Mesophyll cells and Guard cells

Examine the figure given below and select the wrong option

           

  • A - Present in only grana lamellae.

  • B - involves down hill movement of electron in terms of oxidation reduction potential .

  • C - Absorbs 700 nm light.

  •   The electrons return back to the reaction center.

The process which makes major difference between C3 and C4 plants is

  •   glycolysis

  •   Calvin cycle

  •   photorespiration

  •   respiration

Which of the following is not a product of light reaction of photosynthesis?

 
  • ATP
  • NADH
  • NADPH
  • Oxygen
Oxygen is not produced during photosynthesis by

 
  • Green sulphur bacteria
  • Nostoc
  • Cycas
  • Chara

The structures that are formed by stacking of organised flattened membranous sack in the chloroplasts are

 
CAM helps the plants in

C4-plants are more efficient in photosynthesis than C3-plants due to

Stroma in the chloroplasts of higher plants contains

Cyclic -photophosphorylation results in the formation of

In Hatch and Slack pathway, the primary CO2 acceptor is -

One scientist cultured Cladophora in a suspension of Azotobacter and illuminated the culture by splitting light through a prism. He observed that bacteria accumulated mainly in the region of :

In light reaction, plastoquinone facilitates the transfer of electrons from :

The oxygenation activity of RuBisCo enzyme in photorespiration leads to the formation of:

Mark the odd one (w.r.t internal factors affecting photosynthesis)

During non-cyclic photophosphorylation, when electrons are lost from the reaction center at PS II, what is the source which replaces these electrons?

Study the pathway given below-

65525

In which of the following options correct words for all the three blanks A, B and C are indicated?

         A                                  B                    C

The first stable product of CO2 fixation in sorghum is:
Consider the two statements:
I. Current availability of carbon dioxide levels is limiting to the C4 plants.
II. C3 plants have a much lower temperature optimum than C4 plants.
 
Bundle sheath cells, part of Kranz anatomy in a C4 plant, are not characterized by:
 
Match the Scientists given in COLUMN I with their contribution in Column II and select the correct match from the codes given:
COLUMN I COLUMN II
A Jan Ingenhousz P Provided evidence for production of glucose when plants grow
B T. W Engelmann Q Described the first action spectrum for photosynthesis
C Julius von Sachs R Showed that sunlight is essential for photosynthesis
D Cornelius van Neil S Inferred that oxygen evolved in photosynthesis comes from water and not from carbon dioxide

Codes
A B C D
1. R Q P S
2. Q R S P
3. P S R Q
4. S P Q R
Accessory pigments of photosynthesis in higher plants:
I.  include chlorophyll b, xanthophylls and carotenoids.       
II. absorb light and transfer electrons to chlorophyll a.
III. protect chlorophyll a from photo-oxidation.
 
What provides the electrons needed to replace those removed from photosystem II during non cyclic photophosphorylation?
 
The reducing power used in Calvin cycle for reduction of carbon dioxide is:
 
When the ratio of carbon dioxide and oxygen in the vicinity of RuBisCO is 1, the affinity of the enzyme:
 
T.W. Engelmann:
In non-cyclic photo-phosphorylation:
In Sorghum:
The oxygen evolving complex is associated with:
1. PS I
0:0:1


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Practice Botany Quiz Questions and Answers