Answer:
There are two pathways occur in the same cellular compartment, and, if both are on at the same time, a futile ATP hydrolysis cycle results. Using the same mechanism to turn them on/off or off/on is highly efficient.
- "Glycogen Phosphorylase" activity can be allosterically controlled ATP and G6P allosteric inhibitors, AMP allosteric activator as well as, controlled through covalent modification, phosphorylation and via hormones.
- Reaction Catalyzed by Glycogen Synthase:
The activity of glycogen synthase is subject to the same type of covalent modification as glycogen phosphorylase, however, the response is opposite. Glycogen Synthase is activated by G6P. It is also controlled via hormones.
Answer:
2. Circular, looped, folded, single stranded DNA known as the bacterial chromosome
Explanation:
The bacterial chromosome of a prokaryotic cell, does not occur in the typical X chromosome found in eukaryotic cells, but it is a long folded and looped molecule composed of double-stranded supercoiled DNA. In this case, DNA occurs freely and covalently closed in a circular shape in the cytoplasm and it does not bind with proteins.
An ecological relationship is the relationship between an organism in its community.
Answer:
B. Animals that eat the seeds
Explanation:
The pine trees and the trees alike, in general tend to rely on the animals to disperse their seeds. The seeds of the plants like this usually fall on the ground bellow the tree. As they fall, the animals are able to eat them and they do as they are very nutritional to them. While the animals manage to digest the majority of the cones, they are not able to do so with the seeds, so they release them by defecting them. As the seeds get on the ground, they are able to grow, thus giving rise to new trees, and achieving the goal of dispersal.