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How are blood glucose levels controlled in the body?

Blood glucose is controlled by a negative feedback mechanism. 

When blood glucose levels rise, this is detected by beta cells in the Islets of Langerhans in the pancreas. In response, the...

Answered by Emily K. • Biology tutor
3814 Views

What is the difference between a gene, a chromosome and DNA?

Genes, chromosomes and DNA are three vital components of cells and many students often confuse them with each other.

DNA stands for Deoxyribose Nucleic Acid. DNA molecule...

Answered by Emily H. • Biology tutor
26065 Views

How does information from a gene make a protein?

A gene is defined as a section of DNA that codes for a protein. Within a gene you have triplets which are 3 bases in a row that code for a specific amino acid

Answered by Georgina M. • Biology tutor
3778 Views

What is the second line of defence?

What is the second line of defence?

Before we start let’s re-cap some key terminology:

-pathogen: a microorganism causing disease or illness to its host

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Answered by Tumbi O. • Biology tutor
11056 Views

During the light-independent reaction of photosynthesis, carbon dioxide is converted into organic substances. Describe how

As suggested by the name, the light-independent reaction occurs without the precence of light. To start, carbon dioxide combines with ribulose bisphosphate (RuBP) to produce two molecules of glycerate...

Answered by Bryony J. • Biology tutor
15518 Views

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