Cells and Transport Day 3

Question 1

Which heart chambers receive blood?

Answer 1

Term: Atrium. Definition: Upper chambers; right receives deoxygenated blood, left receives oxygenated blood.

Question 2

Which heart chambers pump blood out?

Answer 2

Term: Ventricle. Definition: Lower chambers; right pumps to lungs, left pumps to the body (thicker wall).

Question 3

Which cell carries oxygen in the blood?

Answer 3

Term: Red Blood Cell (RBC). Definition: Biconcave shape, no nucleus, contains haemoglobin for O₂ transport.

Question 4

Which component helps blood clot?

Answer 4

Term: Platelet. Definition: Cell fragment that releases clotting factors to prevent excessive bleeding.

Question 5

Which disease involves blocked coronary arteries?

Answer 5

Term: Coronary Heart Disease (CHD). Definition: Narrowing of coronary arteries, reducing oxygen supply to heart muscle.

Question 6

What mesh tube keeps arteries open in CHD?

Answer 6

Term: Stent. Definition: Inserted into narrowed arteries to improve blood flow and reduce blockages.