<u><em>-Describe the electron transport chain. What part of the cells does hit reaction take place in?
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The electron transport chain is A group of compounds that pass electron from one to another via redox reactions coupled with the transfer of proton across a membrane to create a proton gradient that drives ATP synthesis. The electron transport chain occurs in the inner membrane of the mitochondria.
<u><em>-What molecule stores the energy that is generated during cellular respiration?
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Cells create energy by breaking down the ATP molecules. Thus, cellular respiration is the utilization of oxygen for the synthesis of ATP. Glucose is broken down to supply energy for cellular respiration.
The right answer is A.
Meiosis is an important process in many organisms:
In angiosperms, plants with flowers, meiosis occurs for the production of cells of pollen grains (gametes, haploid cells).
In animals, meiosis is important because it is the mechanism of gametogenesis that produces eggs (oogenesis) and sperm (spermatogenesis).
In the fungi, meiosis produces spores, which by mitosis will give a haploid generation.
Energy from ATP causes a transport protein to change shape, binding substances on one <span>side of the membrane, and releasing them on the other.</span>
-The number of B cells producing the antibody is proportional to the concentration of that antibody.
-On day 16, one out of 100000 B cells are specific for antigen A
\frac{1}{100000} = 1 x 10⁻⁵ B cells
- on day 16, Antibody concentration is 2 × 10¹= 20 Antibodies
- on day 36, antibody concentration 8 × 10³.= 8000
20 antibodies ------------ 1 x 10⁻⁵ B cells
8000 antibodies--------------x
x= (8000 x 1 x 10⁻⁵)/ 20
x= 4x10⁻³ or 1 in 250 are <span>B cells specific for antigen A</span>
Just last year it was 409.8
