Science Test Respiration and Heart

Question 1

Define non-communicable disease

Answer 1

Disease which cannot be transmitted between organisms

Question 2

State an example of a non-communicable disease

Answer 2

Cancer

Question 3

State how to calculate cardiac output

Answer 3

heart rate (bpm) x stroke volume (cm2)

Question 4

State the 4 components of blood

Answer 4

RBC, WBC, Platelets, Plasma

Question 5

State 2 type of chamber in the heart

Answer 5

Atrium, Ventricle

Question 6

State what separates chambers and state their function

Answer 6

Valves - prevent backflow of the blood

Question 7

State the 4 blood vessels connected to the heart

Answer 7

Vena Cava, pulmonary artery, pulmonary vein, aorta

Question 8

State a cause of cardiovascular disease

Answer 8

Poor diet

Question 9

State the difference between breathing and respiration

Answer 9

Breathing is a muscular contraction

Respiration is a chemical reaction

Question 10

State the word equation for aerobic respiration

Answer 10

Oxygen + Glucose > Carbon Dioxide + Water + Energy

Question 11

State the balanced chemical equation for aerobic respiration

Answer 11

6O2 + C6H12O6 > 6CO2 + 6H2O + Energy

Question 12

State the word equation for anaerobic respiration

Answer 12

Glucose > Lactic Acid + (little) energy

Question 13

State which form of respiration is the best for a marathon and explain why

Answer 13

Aerobic - releases lots of energy slowly

Question 14

State the equipment used to measure rate of respiration

Answer 14

Respirometer

Question 15

Explain what causes a heart attack

Answer 15

Not enough respiration in the heart

Question 16

Explain why heart rate increases during exercise

Answer 16

Provide cells with more oxygen and glucose for respiration and release of energy.

Question 17

Explain why those suffering from arthritis do not need to be quarantined.

Answer 17

It is non-communicable

Question 18

State a link between obesity and cardiovascular disease

Answer 18

Build up of fatty plaques/cholesterol in arteries increasing risk of CVD

Question 19

Explain the term “double-circulatory system”

Answer 19

Left side of the heart pumps oxygenated blood around the body, right side of the heart pumps deoxygenated blood to the lungs.

Question 20

State the definition of disease

Answer 20

Disorder of structure or function of an organism