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Biology
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What is meant by the primary structure of a protein and why is it so important?

The primary structure of a protein is the sequence in which the amino acids are joined. The only bonds involved in the primary structure of a protein are peptide bonds (between the amino acids).

SS
Answered by Shiv S. • Biology tutor
7605 Views

How can white blood cells defend against pathogens? (Give 3 ways)

White blood cells (WBC) are like our body's guards patrolling our blood to look for any pathogens (bacteria and virus).WBC kills pathogens in the following ways before pathogens make us ill.Eatin...

YL
Answered by Yvonne L. • Biology tutor
41081 Views

What are the differences and similarities between animal cells and plant cells in terms of structure and function?

Animal cells and plant cells similarities:StructureBoth animal and plant cells contain a nucleus, cytoplasm, cell membrane, mitochondria and ribosomes.Both animal and plant ...

MK
Answered by Mariyum K. • Biology tutor
19318 Views

Describe the process of a cardiac cycle.

Cardiac cycle is the contraction and relaxation of the heart to push the blood to the rest of the body. Systole = contraction (so, atrial ...

YL
Answered by Yvonne L. • Biology tutor
4880 Views

How do bacteria have a role in the nitrogen cycle?

This answer is best supported with a whiteboardAll living things need nitrogen, but nitrogen gas is too unreactive for plants and animals to use directly. Bacteria's main role in the nitrogen cyc...

KD
Answered by Katie D. • Biology tutor
11477 Views

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