Self Studies
Self Studies
Self Studies
Self Studies
Selfstudy
Selfstudy

Photosynthesis Test - 8

Result Self Studies

Photosynthesis Test - 8
  • Score

    -

    out of -
  • Rank

    -

    out of -
TIME Taken - -
Self Studies

SHARING IS CARING

If our Website helped you a little, then kindly spread our voice using Social Networks. Spread our word to your readers, friends, teachers, students & all those close ones who deserve to know what you know now.

Self Studies Self Studies
Weekly Quiz Competition
  • Question 1
    1 / -0

    Role of peroxisome in photorespiration is the

    Solution

    Photorespiration is a process of respiration which takes place in the presence of light and in chloroplasts only. In this process, first of all RuBP is oxygenated in presence of O2. Then, 1 molecule of a 2-C phosphoglycolate and 1 mol. Of a 3C PGA are formed from it. The PGA molecule is used in the Calvin cycle. Phosphoglycolate is dephosphorylated and glycolate is formed. Glycolate diffuses out of chloroplast and enters the organelle called peroxisome. Here it is oxidized and becomes glyoxylate. Glyoxylate is used in synthesis of glycine.

     

  • Question 2
    1 / -0

    During photosynthesis when PGA is changed into phosphoglyceraldehyde, which of the following reaction takes place

    Solution

    During photosynthesis PGA is reduced by NADP. 2H into phosphoglyceraldehyde.

     

  • Question 3
    1 / -0

    C4 plant shows efficiency even in

    Solution

    In C4 plants there is a poor supply of CO2, because there is an internal supply of CO2. So these plants can survive in poor CO2 conditions.

     

  • Question 4
    1 / -0

    In C4-plants, the carbon dioxide fixation occurs in

    Solution

    In C4-plants, the light-dependent reactions and the Calvin cycle are physically separated, with the light-dependent reactions occurring in the mesophyll cells(spongy tissue in the middle of the leaf) and the Calvin cycle occurring in special cells around the leaf veins. These cells are called bundle-sheath cells.
    Atmospheric CO2 start subscript, 2, end subscript is fixed in the mesophyll cells to form a simple, 4 carbon organic acid (oxaloacetate). 

     

  • Question 5
    1 / -0

    Which of the following cells of C4 plants are prominently loaded with starch?

    Solution

    Because bundle sheath cells have longer parenchymatous cells which are also called as storage cells.

     

  • Question 6
    1 / -0

    How many molecules of glycine is required to release one CO2 molecule in photorespiration

    Solution

    There is two molecule of glycine used and interact to form one molecule each of serine CO2 and NH3. 

    2Glycine+H2O +NAD → Serine + CO2 + NH3 + NADP

     

  • Question 7
    1 / -0
  • Question 8
    1 / -0

    What effect would occur on photosynthesis, if the amount of oxygen in the atmosphere decreases?

    Solution

    If the amount of oxygen in the atmosphere decreases then the photosynthesis will be increased in C3 cycle (oxygen has inhibitory effect of photosynthesis) while there will be no change in C4 cycle (oxygen has no inhibitory effect of photosynthesis).

     

Self Studies
User
Question Analysis

  • Correct -

  • Wrong -

  • Skipped -

My Perfomance
  • Score

    -

    out of -
  • Rank

    -

    out of -
Re-Attempt Weekly Quiz Competition
Self Studies Get latest Exam Updates
& Study Material Alerts!
No, Thanks
Self Studies
Click on Allow to receive notifications
Allow Notification
Self Studies
Self Studies Self Studies
To enable notifications follow this 2 steps:
  • First Click on Secure Icon Self Studies
  • Second click on the toggle icon
Allow Notification
Get latest Exam Updates & FREE Study Material Alerts!
Self Studies ×
Open Now