Plant Structure MCQs with Answers

Which of the following feature is not related to vexillum in pea family?

• A.Large petal
• B.Posterior
• C.Anterior
• D.Standard petal

Plant protects itself from rapid chilling through ?

• A.Increasing protein contents only
• B.Increasing unsaturated fatty acids only
• C.Both increasing protein contents and unsaturated fatty acids
• D.Decreasing metabolic rate

Which is a pigment that is part of biological clock system that helps control of flowering?

• A.Chlorophyll
• B.Phytochromes
• C.Carotenoids
• D.Xanthophylls

Which is the first plant response against stress?

• A.Abscisic acid production
• B.Leaf wilting
• C.Root elongation
• D.Stomatal closure

Which of the following pairs is not correctly matched?

• A.Gibberellic acid - Leaf fall
• B.Cytokinin - Cell division
• C.Auxin - Apical dominance
• D.Abscisic acid - Stomatal closure

Which method is NOT commonly used for transformation in plants?

• A.Agrobacterium-mediated transformation
• B.Biolistic (gene gun) method
• C.Natural selection
• D.Electroporation

Mechanical tissues of plants include _?

• A.Collenchyma
• B.Sclerenchyma
• C.Both A and B
• D.Parenchyma

Cellulose is easily digested by _?

• A.Humans
• B.Plants
• C.Birds
• D.Fish

Boron is involved in _?

• A.Respiration in roots
• B.Nitrogen fixation in soil
• C.Photosynthesis in leaves
• D.Translocation of water in Plants

Which plant hormone stimulates the ripening of fruit and inhibits plant growth?

• A.Auxin
• B.Gibberellin
• C.Ethylene
• D.Cytokinin