Tropisms and Turgor Pressure Quiz

What is a stimulus?

• A detectable change in the internal or external environment of an organism

• The movement of a plant towards or away from a stimulus

• A response made by an organism due to a change in the environment

• The pressure exerted by water-filled vacuoles in a plant cell

Tags

NGSS.MS-LS1-8

Which of the following is an example of an external stimulus?

• Wilting of a plant

• Absorption of water by a plant

• Bending of a plant towards light

• Gravity acting on a plant

Tags

NGSS.MS-LS1-8

What is the term for the turning of an organism in response to an external stimulus?

• Geotropism

• Tropism

• Hydrotropism

• Thigmotropism

Tags

NGSS.MS-LS1-8

Which tropism causes the roots of a plant to grow towards a water source?

• Phototropism

• Geotropism

• Hydrotropism

• Thigmotropism

What is the term for the pressure exerted by water-filled vacuoles in a plant cell?

• Stimulus

• Turgor Pressure

• Response

• Tropism

Tags

NGSS.MS-LS1-2

Which of the following is an example of a positive tropism?

• A plant bending towards light

• A plant growing against gravity

• A plant folding its leaves in response to touch

• A plant growing away from water

What is the hormone responsible for elongating cells on the dark side of a plant during phototropism?

• Ethylene

• Cytokinin

• Gibberellin

• Auxin

Which tropism causes the roots of a plant to grow down with the force of gravity?

• Thigmotropism

• Phototropism

• Geotropism

• Hydrotropism

What is the term for the movement or change in orientation of a plant in response to touch?

• Phototropism

• Geotropism

• Hydrotropism

• Thigmotropism

What is the term for the movement of water in and out of a plant cell through the cell wall?

• Osmosis

• Diffusion

• Active Transport

• Transpiration