Gcse Biology (Might Come Up) Paper 1

Question 1

Cell

Answer 1

The basic unit of all forms of life

Question 2

Eukaryotic cells

Answer 2

Cells with a genetic material enclosed in a nucleus – e.g. plant and animal cells.

Question 3

Prokaryotic Cells

Answer 3

Bacterial cells; these don’t have a nucleus to enclose their genetic material.

Question 4

Cell Membrane

Answer 4

. It controls the movement of substances into and out of the cell.

Question 5

Nucleus

Answer 5

The enclosure for genetic material found in plant and animal cells. It controls the activities of the cell.

Question 6

Cytoplasm

Answer 6

The interior of a cell, where most of the chemical reactions take place.

Question 7

Mitochondria

Answer 7

The sub-cellular structure where aerobic respiration takes place

Question 8

Ribosome

Answer 8

The sub-cellular structure where proteins are made (synthesised)

Question 9

Chloroplast

Answer 9

A sub-cellular structure responsible for photosynthesis – only found in plant cells and algal cells.

Question 10

Permanent Vacuole

Answer 10

A sub-cellular structure only found in plant and algal cells – it is filled with cell sap (a store of nutrients for the cell).

Question 11

Cell Wall

Answer 11

A sub-cellular structure that is never found in animal cells. It is made of cellulose, it is outside the cell membrane and it strengthens the cell.

Question 12

Plasmid

Answer 12

A small loop of extra DNA, only found in prokaryotic cells.

Question 13

Multicellular

Answer 13

This describes an organism that is made of lots of cells – such as animals or plants.

Question 14

Specialized cells

Answer 14

Cells that perform a certain function.