Answer:
The correct option is: c) Peroxisomes
Explanation:
Peroxisome is a small cell organelle present in the eukaryotic cells. It is an membrane-bound organelle that contains various enzymes involved in the catabolism of the D-amino acids, fatty acids, polyamines and biosynthesis of ether phospholipids.
It is also the site for the oxidation reactions that generates <u>toxic reactive oxygen species</u> such as hydrogen peroxide. The harmful hydrogen peroxide produced is then decomposed to water by the action of the enzyme catalase.
Answer:
The skeletal muscle is stimulated by means of action potentials that are caused by the neuromotor plate. These action potentials are one after the other and can become cumulative once the muscle fibers pass the refractory phase of the action potential.
The refractory stage is that stage in which action potentials are not admitted, therefore where the muscle fibers do not accept stimuli to contract.
Once this refractory stage is over, more action potentials can be admitted, which would be summative and the muscle fiber would contract with greater power.
Explanation:
If a muscle is repeatedly stimulated, the contraction will be weaker or the muscle will fatigue more easily, triggering muscle failure.
If the muscle is stimulated with a longer pause between contraction and contraction, the action will be performed with more power.
Answer:
c
Explanation:
hurricanes usually form in warm waters near the equator
The answer is Cells come only from pre-existing cells.
There are three tenets of cell theory:
1. All living organisms are composed of one or more cells.
2. Cells are the basic structural and functional units in all living organisms.
3. <span>Cells come only from pre-existing cells.
In plants tissue cultures, single cells divide to produce roots, shoots, and leaves. This division suggests there must be some pre-existing cells from which those organs will be produced. So, the tenet that cells come from other cells in cell division is a basis for plant tissue cultures.</span>