Question
Negative tropism means:
- Plants growing towards a stimulus
- Plants growing away from the stimulus.
- Plants not responding to stimulus.
- Plant changing its pattern of growth.
Hint:
Tropism is either towards or away from the stimulus.
The correct answer is: Plants growing away from the stimulus.
The correct option is b) Plants growing away from the stimulus.
The turning of a plant or a part of it in response to a stimulus such as light, water, gravity etc. is called tropism. Tropism are of two type: negative and positive.
Negative tropism is when plants or a part of the plants moves away from the stimulus. The stem moves in the opposite direction to gravity which shows negative geotropism.
Related Questions to study
The following picture shows which tropism?
The following picture shows which tropism?
What is INCORRECT about geotropism.
What is INCORRECT about geotropism.
The Venus-flytrap is an ___________ plant
The Venus-flytrap is an ___________ plant
Which of the statements best defines a “stimulus”.
Which of the statements best defines a “stimulus”.
Vines respond to touch by:
Vines respond to touch by:
The stem of plant shows:
The stem of plant shows:
Response to gravity is called:
Response to gravity is called:
What is INCORRECT about tropism?
What is INCORRECT about tropism?
Plants respond to which of the following:
Plants respond to which of the following:
Plants are not sensitive to heat.
The statement is false.
Heat stress is often defined as a sufficiently high temperature for a sufficient period of time to cause irreversible damage to plant function and development. In addition, high temperatures increase the rate of reproductive development and shorten the time during which photosynthesis contributes to fruit and seed production. Plants can be harmed in many ways by hot day and night temperatures, hot air temperatures, and high soil temperatures. Pea plants can even die due to high temperature.
Plants are not sensitive to heat.
The statement is false.
Heat stress is often defined as a sufficiently high temperature for a sufficient period of time to cause irreversible damage to plant function and development. In addition, high temperatures increase the rate of reproductive development and shorten the time during which photosynthesis contributes to fruit and seed production. Plants can be harmed in many ways by hot day and night temperatures, hot air temperatures, and high soil temperatures. Pea plants can even die due to high temperature.
The stem of the plants grow towards the gravitational pull.
The stem of the plants grow towards the gravitational pull.
Plants growing towards the source of light is also known as:
The correct option is a)Phototropism.
Phototropism can be defined as the response of plant towards light. Plant cells furthest from light contain hormones called auxins that react when phototropism occurs. This causes plants to have elongated cells on the side furthest from light. Phototropism is one of many plant tropisms, and the movements in response to external stimuli. Growing towards the light source is called positive phototropism and growing away from the light is called negative phototropism.
Plants growing towards the source of light is also known as:
The correct option is a)Phototropism.
Phototropism can be defined as the response of plant towards light. Plant cells furthest from light contain hormones called auxins that react when phototropism occurs. This causes plants to have elongated cells on the side furthest from light. Phototropism is one of many plant tropisms, and the movements in response to external stimuli. Growing towards the light source is called positive phototropism and growing away from the light is called negative phototropism.
