The folded-fiber model describes<span> how a chromatin fiber becomes a </span>mitotic chromosome<span>. Ernest DuPraw proposed the </span>folded-fiber model<span> after he had made many observations of metaphase </span>chromosomes<span>.</span>
In the spinal cord the central canal is lined with ependymal cell and contain cerebrospinal fluid. central canal is a conduit that runs the entire length of spinal cord. Ependymal cell plays an importance role in production and regulation of cerebrospinal fluid.
1. Both are caused my osmosis
2. Both involve in the destruction of the cell (plasmolysis occurs in place cell walls and heamolysis occurs in red blood cells of animals
Answer:
The shape of an enzyme determines which reaction it can catalyze.
Explanation:
Each enzyme is specific to one type of reaction. According to the structure of each enzyme, it has an active site capable of binding to a specific substrate, so the shape of the enzyme determines the type of reaction to be catalyzed.
Once the reaction occurs, the enzyme releases the product of the reaction and the enzyme is available for another reaction.
Regarding the other options:
- <em>The shape of an enzyme no depends on the reaction that it needs to catalyze.
</em>
- <em>Due to their specificity, enzymes can only catalyze one reaction at a time</em>
- <em>The shape of the enzyme is not altered after the reaction.</em>
Answer:
at puberty primary follicles mature to be called graafian follicles where by at ovulation they burst open to release the ova for potential fertilisation then the material left in the ovary are stimulated by a hormone (lutenising) to reorganize to form the corpus luteum
hope this helps you can phrase it better
