Stimuli/Tropisms/Homeostasis

Front

What is Gravitropism?

Back

Gravitropism is the growth response of plants to gravity, where roots grow downward (with gravity) and stems grow upward (against gravity).

Front

What is a negative feedback loop?

Back

A negative feedback loop is a process that counteracts a change, helping to maintain homeostasis. For example, when a human is hungry, metabolism slows down to conserve energy.

Front

What is a negative response to a tropism?

Back

A negative response to a tropism is when a plant or organism moves away from a stimulus.

Front

What is Thigmotropism?

Back

Thigmotropism is the growth response of plants to physical touch, where they may wrap around or grow towards objects.

Front

What is homeostasis?

Back

Homeostasis is the process by which living organisms maintain a stable internal environment despite changes in external conditions.

Front

What is a positive feedback loop?

Back

A positive feedback loop is a process that amplifies a change, leading to an even greater response, such as during childbirth.

Front

What is phototropism?

Back

Phototropism is the growth response of plants towards light, where stems grow towards the light source.

Front

What is the role of stimuli in living organisms?

Back

Stimuli are changes in the environment that trigger responses in living organisms, helping them adapt and survive.

Front

What is the difference between tropism and nastic movement?

Back

Tropism is a directional growth response to a stimulus, while nastic movement is a non-directional response, such as the opening and closing of flowers.

Front

What is an example of an external stimulus?

Back

An example of an external stimulus is a snake lunging at a rabbit, prompting the rabbit to run away.