14.3 & 14.1 Remediation

Front

What is the primary function of ribosomes?

Back

Protein synthesis.

Front

What is active transport in cells?

Back

The movement of molecules across the cell membrane against the concentration gradient, requiring energy (ATP).

Front

What does it mean for a cell membrane to be semi-permeable?

Back

It allows certain substances (like water, oxygen, and carbon dioxide) to pass through while blocking others.

Front

What happens to water in swollen gums when rinsed with salt water?

Back

Water moves out of the gums due to the high concentration of salt in the solution.

Front

Which structure is found in both prokaryotic and eukaryotic cells?

Back

Ribosome.

Front

What is the role of mitochondria in a cell?

Back

They are the powerhouse of the cell, generating ATP through cellular respiration.

Front

Define osmosis.

Back

The movement of water molecules across a semi-permeable membrane from an area of lower solute concentration to an area of higher solute concentration.

Front

What is the function of the nucleus in a cell?

Back

It stores genetic material (DNA) and controls cellular activities.

Front

What is the difference between passive and active transport?

Back

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

Front

What is phagocytosis?

Back

A type of active transport where a cell engulfs large particles or cells.