Answer:
A <u><em>receptor</em></u> is a protein that recognizes and responds to a signal.
Explanation:
A receptor is a protein molecule present on the cells on which the signalling molecules can bind and generate a physiological response. Some receptor molecules can also respond to Sun and light. Each type of cell has specific receptors molecules and hence can respond to specific signals. The receptor molecules hence tend to receive signals for a cell. Molecules such as hormones bind to the receptors.
The correct answer is option C, that is, it prevents the formation of ATP and NADPH, which are needed by the light-independent reactions to make sugars.
The herbicide atrazine combines with the D1 protein and inhibits the binding of plastoquinone. By obstructing the binding of plastoquinone, the procedure of photosynthetic transfer of electron is disturbed, and thus, the production of ATP and NADPH in the chloroplast gets compromised.
This leads to an incapacity to fix carbon dioxide and generate the nutrients required for the plant to live. The block in the transfer of electrons also results in an oxidative stress and the production of radicals that lead to brisk cellular destruction.
Three Types of Muscle tissue that comprise the Muscular System. Skeletal muscle: creates the movement associated with bones and joints. Smooth muscle: associated with hollow organs, blood vessels, and ducts. Cardiac muscle: found within the heart where it creates the pumping action of the heart.
Called<span> the "parent </span>cell," divides to produce to genetically equal smaller cells<span>. Meiosis.</span>
Teratogens is the right answer i believe<span />
