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Multiple Choice Quiz on Plant Physiology

This quiz is designed to assess your basic knowledge in ‘plant physiology’. Questions come under ‘medium’ category. Choose the best answer from the four options given. When you've finished answering as many of the questions as you can, scroll down to the bottom of the page and check your answers by clicking 'Score'. Percentage score will be displayed along with right answers.
plant to bend towards light
1. What causes a green plant to bend towards light as it grows?
because green plants need light to carry on photosynthesis
because green plants are phototropic
auxin accumulates on shaded side stimulating greater cell elongation
light stimulates plant cells on the lighted side to grow faster
2. Acid concentration in CAM plants is more of
night
down
dunk
daytime
3. Cell elongation in internodal regions of the green plants takes place due to
cytokinins
ethylene
gibberellins
indole acetic acid
4. Presence of trichomes on leaves
helps in rapid gaseous exchange
prevents guttation
reduces transpiration
increases transpiration
5. Flowering dependent on cold treatment is
cryopreservation
vernalization
cryogenics
cryotherapy
6. Who proposed that opening and closing of stomata is connected with the change on pH of guard cells
Lyond
Levitt
Von Mohl
Sayre/ Scarth
7. Rubisco content of chloroplast is
20%
16%
15%
12%
8. The characteristics of C4 plants is
first product oxaloacetic acid
carboxylating enzymes are PEPco and Rubisco
Krans anatomy
all of these
9. Dichlorophenyl dimethyl urea (DCMU)
inhibits oxygen evolution and non cyclic photophosphorylation
promotes oxygen evolution and non cyclic photophosphorylation
both
none of these
10. Indole 3-acetic acid is chemically similar to be aminoacid
proline
methionine
phenylalanine
tryptophan
Score =
Correct answers:
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