Unit 3 Cells Test

Front

What is active transport?

Back

Active transport is the process by which cells move substances across their membrane against a concentration gradient, requiring energy (ATP).

Front

What is the main purpose of mitosis?

Back

The main purpose of mitosis is to replicate cells for growth and repair.

Front

What occurs during anaphase of mitosis?

Back

During anaphase, the chromosomes are pulled away from each other towards opposite poles of the cell.

Front

What did the invention of the microscope allow scientists to discover?

Back

The invention of the microscope allowed scientists to discover cells.

Front

Where are specialized cells found?

Back

Specialized cells are found only in multi-celled organisms.

Front

What is passive transport?

Back

Passive transport is the movement of substances across a cell membrane without the use of energy, following the concentration gradient.

Front

What is osmosis?

Back

Osmosis is the diffusion of water molecules through a selectively permeable membrane.

Front

What is diffusion?

Back

Diffusion is the process by which molecules spread from areas of high concentration to areas of low concentration.

Front

What is the role of ribosomes in a cell?

Back

Ribosomes are responsible for protein synthesis in the cell.

Front

What is the function of the cell membrane?

Back

The cell membrane controls the movement of substances in and out of the cell.