Transport In Humans

Question 1

What type of circulation do humans have?

Answer 1

A double circulation

Question 2

What is the circuit going to the lungs called?

Answer 2

The pulmonary circuit

Question 3

What is the circuit going to the rest of the body called?

Answer 3

The systemic circuit

Question 4

When the heart contracts, what state is it in?

Answer 4

Systole

Question 5

When the heart relaxes, what state is it in?

Answer 5

Diastole

Question 6

What is in the blood?

Answer 6

Red blood cells, white blood cells, platelets, plasma

Question 7

How do the lymphocytes respond to a pathogen?

Answer 7

Release antibodies specific to the antigen on the pathogen

Question 8

What do antibodies do

Answer 8

1. Make pathogens stick together for easier ingestion
2. Act as a label
3. Neutralise toxins

Question 9

What do the phagocytes do to a pathogen?

Answer 9

Extend their cytoplasm to engulf a pathogen in the vacuole where enzymes are secreted

Question 10

What do the red blood cells do?

Answer 10

Haemoglobin in the cytoplasm binds to oxygen and allows it to be carried around the body

Question 11

What is the role of the platelets in the blood?

Answer 11

Produced by the bone marrow, they cause blood to clot

Question 12

What happens in the plasma?

Answer 12

1. Digested food is transported.
2. Co2 is carried.
3. Urea is carried to the kidney.
4. Hormones.
5. heat energy is diverted to areas in need

Question 13

What do vaccinations cause?

Answer 13

The manufacture of memory cells