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what is respiration

Respiration is a chemical reaction which takes place in living cells. It uses oxygen from the air and glucose from food to release energy to allow our body to function. Carbon dioxide and water are also made...
AK
Answered by Aliyah K. • Biology tutor
12323 Views

Describe the process and purpose of transcription

The purpose of transcription is to produce an mRNA copy of a gene, to allow the genetic information to pass out of the nucleus, through the nuclear pores where it can be used to assemble a protein. Enzyme DN...
MG
Answered by Megan G. • Biology tutor
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Tobacco mosaic virus (TMV) can cause plants to produce less chlorophyll. This causes leaf discoloration. Explain why plants with TMV have stunted growth.

The reduction in plant chlorophyll content due to TMV means that less photosynthesis is reduced. Chlorophyll is integral to photosynthesis. A reduction in photosynthesis means that there is a subsequent redu...
SJ
Answered by Shloke J. • Biology tutor
28812 Views

Describe one problem inbreeding causes.

These animals are more likely to pass on (recessive) disorders, and subsequently more likely to be susceptible to diseases.
JS
Answered by Jeevan S. • Biology tutor
7133 Views

What is the difference between vaccines and immunisation?

Immunisation is the process of becoming "immune" to a pathogen, in other words once you are exposed to the pathogen again you won't become ill (present with the symptoms). After your body is expose...
JW
Answered by Jake W. • Biology tutor
3620 Views