Skip to content

Course home

Question bank·2.2 The challenges of size
Sign up

2.2 The challenges of size

EasyMediumHard
123456789101112131415161718192021222324252627282930313233343536
Question 6
F

Humans have a double circulatory system.

Which statement describes what is meant by a double circulatory system?

[1]
A

Blood flows through the heart once for each circuit of the body.

B

Blood flows through the heart twice for each beat of the heart.

C

Blood flows through the heart twice for each circuit of the body.

D

Blood flows through the lungs twice for each circuit of the body.

Markscheme

2.2 The challenges of size Questions

  1. GCSE
  2. /Biology
  3. /2.2 The challenges of size

114 exam-style questions on OCR GCSE Biology 2.2 The challenges of size, covering 2.2.1 Exchange surfaces and surface area : volume ratio, 2.2.2 Substances transported in organisms, 2.2.3 The human circulatory system, 2.2.4 The heart and blood vessels, 2.2.5 Red blood cells and plasma, 2.2.6 Uptake of water and mineral ions by plants, 2.2.7 Transpiration and translocation, 2.2.8 Xylem and phloem, 2.2.9 Environmental factors and water uptake, and 2.2.10 Using a potometer. Each one has a worked solution and a mark scheme showing where the marks go.

More questions