Cell Structure Definitions

Question 1

Cell differentiation

Answer 1

The process where cells become specialised by producing different proteins.

Question 2

Cell membrane

Answer 2

A partially permeable barrier that surrounds the cell (allows some substances to move in and out of the cell).

Question 3

Cell wall

Answer 3

A fully permeable outer layer found in some cells. In plants it is made from cellulose and in fungi, chitin.

Question 4

Chloroplast

Answer 4

An organelle that is the sight of the photosynthesis.

Question 5

Cytoplasm

Answer 5

Contains dissolved nutrients and all of the organelles of the cell and the site of many metabolic reactions.

Question 6

Mitochondria

Answer 6

An organelle that is the sight of aerobic respiration.

Question 7

Nucleus

Answer 7

An organelle found only in eukaryotic cells and contains the genetic material (DNA) and controls the activities of the cell.

Question 8

Ribosomes

Answer 8

Organelle that are the site of protein synthesis.

Question 9

Stem cells

Answer 9

Undifferentiated cell that can divide rapidly to produce specialised cells.

Question 10

Vacuole

Answer 10

Found in plant cells, contains dissolved nutrients and supports the shape of the cell.