Biology MCQ on Photoperiodism and Vernalization for NEET and Medical Exam 2021
MCQ on Photoperiodism and Vernalization: Biology is one of the most important and vital sections in NEET. It includes theories, descriptions, discoveries, diagrams, definitions, explanation of differences and relations. Most of the concepts covered in the NEET syllabus are from the NCERT syllabus of Class 11 & 12. Other related sources make up for the rest of the syllabus.
In this post we are providing you MCQ on Photoperiodism and Vernalization, which will be beneficial for you in upcoming NEET, AIIMS, JIPMER, PGIMER, CBSE Board, ICSE Board, Class 12th, 11th.
MCQ on Photoperiodism and Vernalization
Q1. Phytochrome is found in ________. (c) Flowering plants
a) Fungi
b) Algae
c) Flowering plants
d) Vascular cryptograms
Q2. When the dark period of short day plants is interrupted by a brief exposure of light, then the plant ________. (b) will not flower at all
a) flowers immediately
b) will not flower at all
c) turns into a long day plant
d) gives more flowers
Q3. Reversal of etiolation effect by light is called ________. (b) Photomorphogenesis
a) Red-far red light interaction
b) Photomorphogenesis
c) Anisotropic wall expansion
d) Richmond Lang effect
Q4. The pigment involved in red-far red light interconversion is ________. (b) Phytochrome
a) Lycopen
b) Phytochrome
c) Cytochrome
d) Xanthophyll
Q5. Which of the following hormone can replace vernalization ? (b) Gibberellins
a) Cytokinins
b) Gibberellins
c) Auxin
d) Ethylene
Q6. ________ influences the flowering process. (a) Photoperiod
a) Photoperiod
b) amount of green pigment
c) acidity of the soil
d) water in the soil
Q7. The change over from vegetative to reproductive phase in many plants takes place in response to ________. (c) length of the day
a) Oxygen content in the air
b) severity of temperature
c) length of the day
d) mainly the food material available in the soil
Q8. With which of the following process Cholodny-Went theory is concerned ? (c) Phototropism
a) Photorespiration
b) Photoperiodism
c) Phototropism
d) Photomorphogenesis
Q9. Pigment phytochrome is involved in ________. (b) Photoperiodism
a) Geotropism
b) Photoperiodism
c) Phototropism
d) Photorespiration
Q10. A plant that needs not less than 10 hours of light to flower is ________. (b) Long day plant
a) Day neutral plant
b) Long day plant
c) Short day plant
d) None of the above
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