Top answers


What are the differences between mitosis and meiosis?

Mitosis and meiosis refer to the way cells reproduce. Mitosis sees the cell divide in two, forming two genetically identical diploid cells. The reproduction of cells means mitosis is used by the body for gro...
CW
Answered by Chris W. Biology tutor
24392 Views

Describe adaptations of plants that live in dry conditions, such as the desert.

Plants that live in these areas need to minimise the rate at which they transpire in order to preserve as much water as possible. One way they do this is by reducing their surface area:volume ratio, in many ...
EB
Answered by Emily B. Biology tutor
52369 Views

What are the different protein structures?

There are 4 levels you use to describe protein structure. Primary Structure - This is the simplest structure of a protein. It is essentially the sequence of amino acids that form a protein. Secondary Structu...
NP
Answered by Nandesh P. Biology tutor
4888 Views

To what extent do the structures and functions of DNA and RNA differ?

Firstly, there are chemical differences between the two nucleic acids. DNA has the following structural properties:-double stranded and anti-parallel polymer held together by (relatively) weak hydrogen bonds...
AW
Answered by Adam W. Biology tutor
5110 Views

What is the structure and role of a chloroplast?

The chloroplast has a cell membrane like most cells/organelles. They are long and oval shaped with a similar shape/size to bacteria. Inside the organelle, the grana stack up like disks on top of one another....
AW
Answered by Adam W. Biology tutor
5824 Views