Answer:
The correct answer is cholesterol is nonpolar.
Explanation:
Cholesterol is a complex lipid is synthesized from acetyl CoA.cholesterol is an important constituent of plasma membrane.
Cholesterol is non polar in nature.As a result cholesterol is repelled by water and can be found between the layers of the phospholipid in the plasma membrane.
As cholesterol is non polar it is also hydrophobic in nature.
Answer:
it was part of the ocean it needs water
Answer:
Yes the cell will re-aggregate
Explanation:
Cells from tissue B are isolated and dissociated, then treated with the antibodies raised against cell type A membrane proteins. Will cells from tissue By aggregate.
Aggregation permits a cell-cell contact present in a tissue, this enhances the function and behavior if the cells.
1. substrate
2. active site
3. reaction
The given question incomplete. However, the missing part is given below:
1.Which of the following are substrates of the ribonucleotide reductase reaction? 2.Which of the following are products of the ribonucleotide reductase reaction? 3.What is the best description of the reaction? 4. what is the ultimate electron donor? 5.Which of the following can directly donate an electron to ribonucleotide reductase?
Answer:
The correct answer is-
1. NDP (ADP, CDP, GDP, or TDP)
2. dNDP ( dADP. dCDP, dGDP, or dTDP)
3. Oxidation-reduction
4. NADPH
5. Thioredoxin
Explanation:
Ribonucleotide reductase reaction is catalyzed by the enzyme called ribonucleotide reductase which is a key enzyme that synthesizeS the deoxyribonucleotide from ribonucleotide, Deoxyribonucleotide is the precursor of DNA.
This reaction is an oxidation-reduction reaction that reduces all ribonucleotides ADP, CDP, GDP, or TDP to dADP. dCDP, dGDP, or dTDP. The ultimate electron donor in this oxidative-reductive reaction is NADPH however thioredoxin directly transfers an electron to ribonucleotide.
