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Questions and Answers
What type of movement occurs in plants due to changes in turgor pressure of certain sensitive cells?
What type of movement occurs in plants due to changes in turgor pressure of certain sensitive cells?
- Hyponasty
- Tropic movements
- Variation movements (correct)
- Nutation
What is the term for the everyday changes in turgor pressure in the pulvinus that cause bean plants to lower their leaves in the evening and raise them in the morning?
What is the term for the everyday changes in turgor pressure in the pulvinus that cause bean plants to lower their leaves in the evening and raise them in the morning?
- Sleep movements (correct)
- Paratonic movements
- Rapid movements
- Nutation
What causes the leaflets of the sensitive plant Mimosa to fold together when touched?
What causes the leaflets of the sensitive plant Mimosa to fold together when touched?
- Rapid loss of turgor pressure (correct)
- Rapid gain of turgor pressure
- Increase in pulvinus size
- Decrease in pulvinus size
Which type of movement is characterized by the zig-zag movement of the growing tip of the young stem?
Which type of movement is characterized by the zig-zag movement of the growing tip of the young stem?
What is the term for the growth movements that occur in response to unidirectional external stimuli?
What is the term for the growth movements that occur in response to unidirectional external stimuli?
What is the term for the development in the lower surface area of the leaf in bud condition that is more than that of the upper surface area?
What is the term for the development in the lower surface area of the leaf in bud condition that is more than that of the upper surface area?
What is the term for the growth or turning movement of a plant in response to an environmental stimulus?
What is the term for the growth or turning movement of a plant in response to an environmental stimulus?
Which part of the plant exhibits negative geotropism?
Which part of the plant exhibits negative geotropism?
What type of tropic movement is caused by the unilateral stimulus of some chemicals?
What type of tropic movement is caused by the unilateral stimulus of some chemicals?
What is the result of thigmotropism in plant organs?
What is the result of thigmotropism in plant organs?
Which of the following plant parts exhibit positive hydrotropism?
Which of the following plant parts exhibit positive hydrotropism?
What is the direction of growth of pollen tubes dictated by?
What is the direction of growth of pollen tubes dictated by?
What is the primary characteristic of autonomic movements in plants?
What is the primary characteristic of autonomic movements in plants?
What is an example of movements of locomotion in plants?
What is an example of movements of locomotion in plants?
Which of the following is NOT a type of autonomic movement?
Which of the following is NOT a type of autonomic movement?
What is the result of unequal growth on two sides of plant organs?
What is the result of unequal growth on two sides of plant organs?
What is the first step in plant movement?
What is the first step in plant movement?
Which of the following is an example of epinasty?
Which of the following is an example of epinasty?
