Unit 3: Unity, Diversity, Cells & Homeostasis

Front

What is a stimulus in the context of plant behavior?

Back

A stimulus is an external factor that causes a response in an organism, such as light causing a plant to bend towards it.

Front

What characteristic of life refers to the ability of living things to grow and reproduce?

Back

Living things grow and reproduce.

Front

What is osmosis?

Back

Osmosis is the movement of water through a semi-permeable membrane from an area of low concentration to an area of high concentration.

Front

During osmosis, how does water move?

Back

Water moves from high to low concentration.

Front

What is the definition of concentration gradient?

Back

A concentration gradient is the difference in the concentration of a substance between two areas.

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 are cells?

Back

Cells are the basic building blocks of all living organisms, composed of one or more cells.

Front

What is diffusion?

Back

Diffusion is the movement of particles from an area of high concentration to an area of low concentration.

Front

What role do proteins play in cells?

Back

Proteins are essential for various functions in cells, including building cellular structures and facilitating biochemical reactions.

Front

What is the difference between active transport and passive transport?

Back

Active transport requires energy to move substances against their concentration gradient, while passive transport does not require energy.