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Biology
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Explain why when placed in distilled water a red blood cell would burst but a plant epidermis cell would not

The cytoplasm of both cells has a higher osmolarity/ lower water potential than the distilled water, this causes water to enter the cells via osmosis along the water gradient. The red blood cell is surrou...

Answered by Kelvin W. Biology tutor
18221 Views

What is the mechanism of inspiration in human?

Inspiration and expiration are the terms used to describe breathing in and out. The way in which we breathe depends entirely upon a pressure gradient that determines the direction of air ...

Answered by Pam N. Biology tutor
6502 Views

How are proteins made?

In the nucleus, DNA helicase breaks hydrogen bonds between the bases on DNA causing the DNA strand to unwind.The template strand acts as a template for mRNA production during which complimentary nucleotid...

Answered by Adiba M. Biology tutor
2088 Views

How are plant cells adapted for photosynthsis

Plant cells have a thick waxy cuticle which is transparent to allow sunlight to pass through and it also minimises water loss. There are air spaces in the spongy mesophyll which allows gas exchange to occ...

Answered by Adiba M. Biology tutor
17572 Views

Describe the similarities and differences in structure between DNA and RNA

Both DNA and RNA are molecules related to protein coding in a cell. The basic structure has a carbon sugar backbone with 4 different nitrogenous bases. In DNA there are two of these strands connected by ...

Answered by Emily L. Biology tutor
2491 Views

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