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Cell Biology
The stage where the DNA is duplicated is Telophase? Is it true or false if false why?
Cell Biology
During Mitosis the cell enters interphase after telophase? is true or false if false why?
Cell Biology
Which of the following substances release two high energy electrons when light is shone on them. a) Carotenoids b) Chlorophyll A c) Antenna pigments d) Chlorophyll B
Cell Biology
Which one of the four food tests involves heating the sample in a beaker of hot water?
Cell Biology
When an enzyme is denatured, it works ten times faster?
Cell Biology
- Which statements about active transport in root hair cells are correct?
1 Energy is required.
2 Substances may be absorbed as ions.
3 The membrane is partially permeable.
A. 1 2 and 3
B 1 and 2 only
C 1 and 3 only
D 2 and 3 only
Cell Biology
Sometimes “uncoupling proteins” are present in the inner mitochondrial membrane. When present these provide an alternative pathway for protons to re-enter the matrix. They “uncouple” the ETC from ATP synthesis. What is the result of this “uncoupling”? Give an example of when this might be beneficial.
Cell Biology
How does DNA get copied into each of our cells and what happens if there is an error during this process
Cell Biology
describe the changes a molecule undergoes when it absorbs a quantum of light
Cell Biology
Explain how ATP performs cellular work and explain why an investment of activation energy is necessary to initiate a spontaneous reaction
