🔬 3-5 Homeostasis and cell processes

Front

What is the process called when particles are enclosed in a vesicle and released from a cell?

Back

Exocytosis

Front

How do molecules move in and out of a cell by diffusion?

Back

Molecules move from an area of higher concentration to an area of lower concentration.

Front

What is the movement of materials across the cell membrane from low concentration to high concentration that requires energy?

Back

Active Transport

Front

What is the diffusion of water through a semi-permeable membrane called?

Back

Osmosis

Front

What is homeostasis?

Back

Homeostasis is the ability of an organism to maintain a stable internal environment despite changes in external conditions.

Front

What do trees do to maintain homeostasis during winter?

Back

Trees lose leaves to conserve water and energy.

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 is the role of the cell membrane?

Back

The cell membrane controls what enters and exits the cell, maintaining homeostasis.

Front

What is endocytosis?

Back

Endocytosis is the process by which cells take in substances by engulfing them in a vesicle.

Front

What is the difference between passive transport and active transport?

Back

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