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Biology
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What are stable ecosystems? Can you give an example?

A stable ecosystem is where the outputs (losses of the ecosystem) equal the inputs (gains) - there is a balance. They are supported by what they produce, and their structure and function remain constant f...

SA
Answered by Samhitha A. Biology tutor
4890 Views

Starch is made from two alpha-glucose polymers, amylose and amylopectin. Which is quicker to break down and why?

Amylose is formed from 1-4 glycosidic bonds, creating a compact spiral structure. It is unbranched, therefore enzymes can only work from either end to break the bonds and release glucose monomers - broken...

SA
Answered by Samhitha A. Biology tutor
10578 Views

How do the actions of steroid hormones cause proteins to be made?

Steroid hormones move across the cell membrane to enter the cell (they can move through easily as they are made of lipid and are therefore non-polar, and also are generally quite small). They bind to rece...

SA
Answered by Samhitha A. Biology tutor
3072 Views

What is a myocardial infarction and how is it treated?

A myocardial infarction is a fancy term for a heart attack, which is a common life threatening condition. Just splitting the name up tells us whats happening beneath the surface. Myo means muscle, Cardial...

HA
Answered by Haroon A. Biology tutor
5788 Views

How is mRNA produced in the nucleus of a cell

Helicase breaks hydrogen bonds between the 2 DNA strands to separate them1 DNA strand acts as template (the sense strand)Free RNA nucleotides then attach to exposed complementary bases on the sense strand...

KL
Answered by Ka L. Biology tutor
3893 Views

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