Answer:
<h2>
A
</h2>
Explanation:
1. A channel between two adjacent cells in known as an intercellular cleft.
2. And through these channels many molecules can easily pass between cells.
3. Importance of Intercellular clefts:
i) It is very important in transportation of fluids and small solutes.
ii) It contains gap junctions, tight junctions, desmosomes, and adheren proteins and these junctions help in regulate cell communication by signal transduction, surface receptors, or a chemogradient.
Answer:
Apparently is an adverb, and it describes something that appears to be true based on the context/appearance of a situation
Explanation:
When converted to a household measurement, 9 kilograms is approximately equal to a
Answer:
long-term carbon; short-term carbon
Explanation:
The long-term carbon cycle, which takes millions of years, involves geological processes and carbon reserves that bury organic matter and exchange of carbon with rocks as well as formation of fossil fuels. On the other hand, short-term carbon cycle involves biological processes such as exchange of carbon dioxide between the sea and the atmosphere, photosynthesis, respiration, which occur within shorter periods.
Answer:
The lac repressor is not bound to the operon.
Explanation:
The lac repressor is a protein encoded by the lac I gene. In absence of lactose, the lac repressor binds to the operator sequence of the lac operon and does not allow the RNA polymerase to express the operon. However, as lactose enters the cell from the medium, the beta-galactosidase enzyme converts it into allolactose which in turn serves as an inducer of the lac operon. Binding of allolactose to lac repressor trigger conformational changes in the protein and renders it unable to bind to the operator. The RNA polymerase is allowed to express the operon.
