Answer:
A. Molecular changes such as extracellular signals on extracellular ligands can result in quick changes in cell behaviour. One example is insulin. Upon insulin binding on the receptor on the cell membrane, the cell release GLUT4 transporters (for muscle cells) to increase uptake of glucose.
B. Slow changes in cell behaviour can be observed for other lipophilic hormones or intracellular receptors such as glucocoortoid or estrogen which reacts with receptors in the cells.
C. Insulin is required to maintain a constant blood glucose level and hence levels of insulin has to be mediated in correspondence to the blood glucose levels. Fast acting signalling is thus required for homeostasis of blood glucose levels. Where for such lipophilic hormones such as steriods, glucocortoid, these hormones tend to have a longer lasting effect and hence results in a slow change.
By eating plants and other animals, because they obtain their carbon from food.
Skeletal muscle is under voluntary control
<u>Answ</u>er:
False
,Cellular respiration not is the oxygen dependent process through which food molecules are broken down and the energy released used to generate atp.
<u>Explanation</u>:
Glycolysis is the primary phase in the collapse of glucose to abstract energy for cellular metabolism. Almost every living organisms bring out glycolysis as step of their metabolism. The method does not use oxygen and is hence anaerobic. Glycolysis occurs in the cytoplasm of equally prokaryotic and eukaryotic cells. Glucose arrives into the heterotrophic cells in two ways.
1. Over secondary active movement in which the movement occurs against the glucose concentration gradient.
2. Over a cluster of vital proteins called GLUT proteins, also called as glucose movement proteins. These transporters helps in the simplified diffusion of glucose.
No the answer is not A the answer it C. the bacterial cells to maintain homeostatic