Muscle cells require more energy than most other cells in order to function. Therefore, muscle cells would be expected to have more ________ and ________ than most other animal cells.
A) Glycogen; Mitochondria B) Peroxisomes; Fat C) Mitochondria; Starch D) Ribosomes; Glycogen E) Glucose; Nuclei.
Answer:
A) Glycogen; Mitochondria
Explanation:
Glycogen is the stored form of glucose present in the animal cells. In human beings, glycogen is mainly present in muscle cells and liver cells. Breakdown of glycogen releases glucose which in turn can be fueled into cellular respiration to produce the energy required for the muscle contraction.
The aerobic phases of cellular respiration are Kreb's cycle and electron transport chain. Both of these occur in the mitochondria. Therefore, muscle cells are rich in glycogen storage and have plenty of mitochondria to ensure the supply of ATP required for their contraction. The contraction of muscles requires lots of ATP molecules as a source of energy.
Answer:
Parathyroid hormone is released when dietary calcium levels are low.
Explanation:
Parathyroid hormone is considered to be a vital hormone involved in regulating the calcium levels of the body. The hormone is secreted by parathyroid glands which are located behind thyroid glands in neck region. This hormone regulates the calcium level of the body by putting its action through bones, intestine and kidneys.
In actual there is a negative feedback system in the body through which parathyroid levels are controlled. When calcium levels in the blood get very low, the gland is stimulated to secrete more parathyroid hormone while when calcium is very high in the blood, it prevent the release of parathyroid hormone.
Hope it helps!
Answer:cardiac cells
Explanation:
The heart pumps blood and cardiac cells are found in the heart
Answer:
Therefore, when an experiment shows that one variable makes another variable change, and no other variables have any effect, the experiment shows causation.