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Biology
GCSE

What is the difference between Mitosis and Meiosis?

Mitosis occurs in all human cells, producing two genetically identical daughter cells containing a full set of chromosomes (diploid). This process takes place to replace old cells, in wound healing and in...

Answered by Ottilie S. Biology tutor
2277 Views

Why do cells divide? Why not simply get bigger?

-       Larger cell have smaller SA:Vol Ratio-       Difficulty in exchange materials-       Multicellular more efficient-       Revisit – transfusion, osmosis, active transport

Answered by William W. Biology tutor
2203 Views

What's the definition of osmosis?

Osmosis is the net movement of water from an area of high water potential to an area of lower water potential through a partially permeable membrane.An area of high water potential means there is less sol...

Answered by Emily J. Biology tutor
2391 Views

Draw and label an animal cell as seen under an electron microscope.

Now the first thing to point out when looking at images under an electron microscope is the scale. For example, something that you draw as 3cm long, may in fact be 10, 000 times smaller in real life. So i...

Answered by Isabella U. Biology tutor
10772 Views

Explain the hormones involved in the menstrual cycle from day 1-14 of the cycle.

FSH: FSH is released into the blood from the pituitary gland. It is triggered by a fall in progesterone at the end of the previous cycle. It acts upon the ovary, causing developmen...

Answered by Ellie G. Biology tutor
2141 Views

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