Search our library of Biology GCSE questions

Top answers

Biology

GCSE

Describe the route blood takes to move through the heart

Deoxygenated blood enters at the vena cava. The right atrium receives the blood, and it then passes into the right ventricle. From there it goes to the lungs via the pulmonary artery. This brings the deox...

Answered by Tausiq S. • Biology tutor

2032 Views

Why/how do plants both respire and photosynthesise?

First of all, respiration is not breathing. Respiration is combining oxygen and glucose to form energy (ATP) with carbon dioxide as a waste product. All living things respire in order to obtain energy to ...

Answered by Mai T. • Biology tutor

3491 Views

How does negative feedback work?

Negative feedback is one of the ways the body maintains homeostasis. Homeostasis describes the body maintaining set internal conditions- for example the level of certain hormones in the body is kept in a ...

Answered by Wafaa H. • Biology tutor

1849 Views

Explain how human body temperature is maintained by homeostasis?

When the external environment is hot, the temperature is detected by temperature receptors on the skin, which is transmitted to the brain via the sensory neurons. The brain sends the signals to the

Answered by Keerthana R. • Biology tutor

1888 Views

what type of microscope would you use to study living cells?

There are two main types of microscope: light microscopes are used to study living cells and for regular use when relatively low magnification and resolution is enough.

Answered by Molly F. • Biology tutor

2471 Views