<span>Abnormal
behavior of cancer cells begins when a single cell undergoes
transformation, a process whereby a normal cell converts to a cancer
cell. Transformation occurs after a genetic change (mutation) in one or
more genes that encode for proteins in the cell cycle control system.
Because a transformed cell grows abnormally, the immune system normally
recognizes and destroys it.</span>
D)Ethically conducted science seeks to inform rather than influence policy
Answer:
-The ATP provides the energy, and the NADPH supplies the electrons for the Calvin cycle, which converts carbon dioxide to sugar. The ADP and NADP+ that result from the Calvin cycle shuttle back to the light reactions, which regenerate ATP and NADPH.
Explanation:
<h3>Origin of cell.</h3>
In 1665,an english scientist Robert Hooke designed his own microscope and examined a cork from a bark of tree.He observed that cork is made up of many boxes like units which were packed together .He called these units <u>Cells</u>.
<h3 />
The cell plasma membrane is composed of a phospholipid bilayer structure in which the hydrophobic tails of each phospholipid face inwards forming a hydrophobic core. The core restricts movement of hydrophilic substances across the membrane by repelling them. Hence the peptidoglycan precursors must be sufficiently hydrophobic in order to bypass the hydrophobic core of the bilayer and leave the cell to reach the cell wall.
