Biology
>
KS3
>
Cells and Respiration
>
give three...
2 years ago
·
6 Replies
·
1532 views
Louie
6 Answers
Supportive science & maths tutor, over 20 years of teaching experience
Hi Louie,
There are a number of other types of molecules you find in animal cells - these include:
nucleic acids - these are the molecules that make up our genetic code. At KS3 you will probably only be told about the nucleic acid called DNA, (Deoxyribose Nucleic Acid), but there is another type called RNA (RiboNucleic Acid) which you'll learn about for GCSE.
carbohydrates - these include both starches and sugars. Starch is used as a way of storing energy and sugar is used for jobs that need energy now - the process called respiration is the way that the cell releases this energy.
lipids (which are fat based molecules) - these form part of the cell membrane; some may also be used an energy store and other lipids are involved in transferring signals or messages into various parts of the cell.
Hope this is useful!
Catherine
I'm available for 1:1 private online tuition!
Click here to view my profile and arrange a free introduction.lipids, carbohydrates and nuclei acids
Phospholipid bilayer, channel proteins, carrier proteins.
Glucose, sucrose-Carbohydrate molecules
Haemoglobin -Protein molecule
Lipid, Triglycerides -Cholesterol molecules
Carbohydrates, nucleic acids
Three molecules that are present in animal cell membranes include carbohydrates, lipids, and proteins
Think you can help?
Get started with a free online introductions with an experienced and qualified online tutor on Sherpa.
Find a KS3 Biology Tutor