Oral ingestion or swallowing is the
administration method that takes the longest time for the drug to reach the
brain. When using this method, the drug is swallowed through the mouth, moves to
the stomach and then into the bloodstream before it can be transported to the
brain. This means that it takes longer for a swallowed drug to start functioning
than it does with other methods of administration such as injecting.
When prey is abundant, predator populations increase because more young are able to survive. More predators kill more prey, which, along with food scarcity, decreases the population. When prey becomes more scarce, the predator population declines until prey is again more abundant. Therefore, the two balance each other.
Answer: C
Explanation:
Pyruvate dehydrogenase complex (PDH) is covalently modified by phosphorylation by PDH kinase and dephosphorylation by PDH phosphatase.
The dephosphorylated form of the enzyme is active. Hence activators of PDH kinase like ATP, NADH and acetyl CoA inhibits the PDH reaction
PDH phosphatase is activated by Ca++, Mg++ and AMP; this will increase the rate of PDH reaction where as PDH kinase is inhibited by Ca++. When there is adequate ATP and acetyl CoA the enzyme is inhibited.
C. protein. Nitrogen is a component of amino acids which are the building blocks of protein.
Answer:
The onset of puberty in girls by the release of these two hormone is an example of typical signal transduction pathway
Explanation:
Specifically Luteinizing Hormone (LH) along with the Follicle stimulating Hormone (FSH) released from pituitary gland gets attached to the receptors present in the cells of ovary and generate a series of chemical reaction or cascade of biochemical reaction in a cell (activation of secondary messengers like cAMP) to produce estrogen and progestrone that will help in follicle formation and ovum maturation.
