Search our library of GCSE questions

Top answers

All subjects

GCSE

Describe how a sperm cell is adapted for it's function. (4 marks)

1 mark each for one of the following:
Describe the sperm cell's function; i.e. fertilising the egg
(Proportionally large) flagellum for mobility
Possess an Acrosome filled with enzymes to p...

Answered by Jack M. • Biology tutor

3199 Views

How would I plan an answer to this question: 'Peaceful co-existence failed by 1961 because neither the East nor the West fully committed to it. How valid is this assessment?' (AQA History A-Level)

The first thing to do when planning an essay is to identify the most important words in the question, and consider what they mean. This will ensure that you are really answering the question directly rath...

Answered by Isobel B. • History tutor

6437 Views

Explain how the cardiac muscle controls the regular beating of the heart.

Cardiac muscle is myogenic. This means signals for contraction and relaxation originate from the heart itself. The process is initiated in the sinoatrial node (SAN), located in the right atrium. The SAN i...

Answered by Christie J. • Biology tutor

3883 Views

Solve the following simultaneous equations: 3x + 5y = 19 and 8x - 2y = -18. If both equations represent lines in a coordinate system, at which point do they intersect?

I. 3x + 5y = 19 II. 8x - 2y = -18 . We see that we can simplify the second equation, and we do so: II. x - y = -9. Now, we check to see which variable i...

Answered by Ninett A. • Maths tutor

3850 Views

Describe how phagocytic white blood cells destroy bacteria. (4)

The phagocyte recognises antigens on the surface of the bacteria as foreign, causing it to be attracted to the bacteria. The phagocyte then engulfs the bacteria, forming a vesicle around it. Lysozomes fus...

Answered by Sarah W. • Biology tutor

15794 Views