Top answers

How can a diet high in fats lead to heart disease?

A diet high in fat can lead to the formation of atheroma plaques with in blood vessels. These plaques make the walls of vessels rougher which increases the likelyhood of a clot forming. If a clot moves to, o...
EM
Answered by Ellen M. • Biology tutor
3729 Views

What are the key cellular differences between bacterial cells and plant and animal cells?

Unlike animal and plant cells, bacteria cells lack membrane bound organelles including: mitochondria, chloroplasts and a 'true nucleus'. Instead Bacterial DNA forms a single strand within the cytoplasm. Bact...
CS
Answered by Chris S. • Biology tutor
27628 Views

What is a neuron and its function?

The neuron is the basic working unit of the brain, a specialized cell designed to transmit information to other nerve cells, muscle, or gland cells. Neurons are cells within the nervous system that transmit ...
MB
Answered by Marie B. • Biology tutor
18142 Views

Describe is photosynthesis?

The chemical change which happens in the leaves of green plants. It is the first step towards making food - not just for plants but ultimately every animal on the planet. During photosynthesis: Light energy ...
MB
Answered by Marie B. • Biology tutor
4439 Views

What is an enzyme and explain the effect of two environmental factors on their efficiency?

Enzymes act as biological catalysts for reaction that occur in organisms such as animals and plants. This means that they help to speed up reactions, or allow them to take place at lower activation energy le...
OC
Answered by Oliver C. • Biology tutor
5270 Views