Answer:
Adenosine triphosphate (ATP)
Animals also release this source of energy.
Explanation:
All living organisms require energy to perform their life functions. This energy is obtained by breaking down organic molecules (usually glucose) in a catabolic reaction called CELLULAR RESPIRATION. These organic molecules store energy in their chemical bonds, this energy in a usable form by the cell (ATP) is released when organisms undergo cellular respiration (catabolism).
Plants likewise animals undergo this catabolic process and the same form of energy (ATP) is released for use via this process.
Answer:
Phosphorylation
Methylation
Explanation:
Histone mobilization deals with the covalent bonding of several functional groups to the free nitrogens in the R-groups of lysine in the N-terminal tail.
DNA transcription can be controlled or altered via 'methylation' on the histones. Methylation is the mode of transferring methyl group to amino group of histone proteins that form the nucleosomes, which result to chromosomes formation through wrapping of DNA double helix around it. Histones methylation can either increase or decrease genes transcription. Chromatin modification is known to stimulate neural pathways that are essential for long memories and learning.
Histones phosphorylation is associated transcriptional activation. It deals with the transfer of phosphate group to amino acids of the proteins. Phosphate group known to be negatively charged, when transferred to amino acids of the histone proteins, it creates a repulsive force with the negatively charged phosphates of the DNA backbone. It can occur in serine, tyrosine and threonine. The enzymes kinases activate phosphorylation, while protein phosphatases remove phosphate groups.
Centromere
Meaning the most condensed and constructed region
Answer:
C, B, A, D
Explanation:
The images in this question is portraying the stages involved in MITOSIS, which is a kind of cell division that forms two genetically identical daughter cells. The four stages of mitosis represented in the image are as follows: interphase, prophase, metaphase, and anaphase
- INTERPHASE: This stage is regarded as the resting stage of the cell. The chromosomes are found to be supercooled together as chromatins as seen in image C.
- PROPHASE: In the prophase stage, the chromosomes become condensed and more visible as seen in image B.
- METAPHASE: In the metaphase stage, the chromosomes align at the equator of the cell in order to be pulled apart by microtubules as seen in image A.
- ANAPHASE: In the Anaphase stage, the chromosomes are pulled apart into opposite poles of the cell as depicted in image D.
