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Biology
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How do you explain the change in membrane permeability as temperature increases?

Generally, increasing the temperature increases membrane permeability. At temperatures below 0 oC the phospholipids in the membrane don't have much energy and so they can't move much, which mea...

EF
Answered by Ella F. Biology tutor
65241 Views

What are Mendel's two laws of inheritance?

   Mendel's two laws of inheritance are: the law of segregation and the law of independent assortment. 

SP
Answered by Sara P. Biology tutor
4884 Views

Describe the course taken by a deoxygenated red blood cell returning to the heart from the circulation, naming any vessels or chambers along its course.

Following its return to the right atrium via the vena cava, the RBC passes through the mitral valve and into the right ventricle. Upon ventricular contraction, the RBC is ejected via the pulmonary valve a...

WB
Answered by William B. Biology tutor
2411 Views

Why was the experiment on DNA done by Meselson and Stahl strong evidence that DNA replication is semi-conservative?

Three theories for DNA replication at the time: Conservative replication: When DNA was replicated, entirely new molecules of DNA were made, meaning a newly replicated DNA molecule ...

PB
Answered by Patricia B. Biology tutor
6538 Views

How do negative and positive feedback loops occur and how are they different?

Think of them as a flow chart.

Stimulus (a change)
    |
Sensor (detects the change)
    |
Control (sends a signal about t...

EC
Answered by Emma C. Biology tutor
6985 Views

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