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Biology
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How does the Calvin Cycle in photosynthesis work?

If you recall the basic chemical equation for photosynthesis: CO2 + H2O --> O2 + Carbohydrate (with 6-Carbons)
​This is precisely what occurs during the calvin cycle. Carbon dioxide is fixated...

KA
Answered by Kartika A. Biology tutor
18875 Views

Explain why biological enzymes would stop working at temperatures higher than 45 degrees Celcius.

1. Biological enzymes are proteins, meaning they have specific shapes depending on bond interactions.

2. The active site of the protein is specific to a ...

MH
Answered by Masood H. Biology tutor
4287 Views

Why is ATP required for skeletal muscle contraction?

When muscles contract, the length of the sarcomere (distance between the Z-lines*) shortens. ATP is required for the process of cross-bridge cycling which enables the sarcomere to sho...

SF
Answered by Surina F. Biology tutor
35715 Views

What is diffusion and why is it important in both animals and plants?

Diffusion is a passive process involving the movement of molecules from a region of a higher concentration to one of a lower concentration (the term passive means that the process does...

MC
Answered by Mathew C. Biology tutor
177596 Views

Where is DNA found in a human cell? What is a gene?

DNA is a long molecule found in the nucleus (or more specifically the nucleolus) of a human cell. When it is condensed and shortened it appears, under a microscope, 

RM
Answered by Ryan M. Biology tutor
17270 Views

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