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Biology
A Level

Draw a diagram of a human cell, include; the Nucleus, the Golgi Apparatus, Lysosomes, Ribosomes and Mitochondria, annotating your diagram with the general functions of each component and of the cell membrane.

Nucleus: Contains the DNA/ Human genome in the form of chromosomes (with the help of histone proteins), within a nuclear membrane which is inpenetrable by cytosolic enzymes.

Golgi Apparatus: Transp...

VT
Answered by Victoria T. Biology tutor
7958 Views

Explain what is meant by the term phenotype?

Expression of a genotype due to interaction with the environment 

LP
Answered by Laura P. Biology tutor
3990 Views

How do the different organelles in a eukaryotic cell work together to produce a hormone such as insulin?

Hormones are proteins. Each specific protein is made up of a specific sequence of amino acids. DNA in the nucleus codes for the specific sequence. This DNA is transcribed into mRNA which leaves the nucleu...

SH
7838 Views

Some populations of animals that have never been hunted show very low levels of genetic diversity. Other than hunting, suggest two reasons why populations might show very low levels of genetic diversity.

Populations can still have low levels of genetic diversity if they have never been hunted. This can happen because the population is very small and isolated from other populations. Small populations may i...

KJ
Answered by Kelly J. Biology tutor
10227 Views

How would you structure and answer the essay section of the exam?

Firstly, I advise that you spend a minimum of 40 minutes on this section. This will allow you enough time to make sure that you have answered all other questions and also give you time to plan and write y...

MH
Answered by Molly H. Biology tutor
4217 Views

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