Exam Revision S2

Question 1

Molecule

Answer 1

2 or more atoms bonded together

Question 2

organelles

Answer 2

Small parts of a cell with a special function

Question 3

cells

Answer 3

Building blocks of living things

Question 4

tissues

Answer 4

groups of cells performing the same function

Question 5

systems

Answer 5

Group of organs that work together

Question 6

cellular respiration

Answer 6

the chemical reaction involving oxygen that moves the energy in glucose into the compound ATP. The body is able to use the energy contained in ATP.

Question 7

respiratory system

Answer 7

the body system involving the lungs and associated structures, which take in air and supply the blood with oxygen to deliver to the body’s cells so they can carry out their essential functions; it also performs gas exchange to remove the waste gas carbon dioxide

Question 8

Circulatory system

Answer 8

The body system that circulates oxygen around the body.

Question 9

blood cells

Answer 9

any of the many types of cells found in blood including red and white blood cells

Question 10

blood vessels

Answer 10

the veins, arteries and capillaries through which the blood flows around the body