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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 o C the phospholipids in the membrane don't have much energy and so they can't move much, which means that they'...
EF
Answered by Ella F. • Biology tutor
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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
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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 and ...
WB
Answered by William B. • Biology tutor
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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 would be composed entirely ...
PB
Answered by Patricia B. • Biology tutor
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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 the change) | Effector (response to the change) (connect a line to Stimulus) Negative feedback...
EC
Answered by Emma C. • Biology tutor
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