A plant cell <span>manufacture glucose and other carbohydrates that they can store for later use. </span>
Answer:
A. Enzymes
Explanation:
Metabolic processes that occur in living cells occur with the aid of certain biological catalysts that acts as regulators. These biological catalysts are called ENZYMES. Enzymes are proteinous molecules that control the rate at which certain biochemical reactions occur in living cells.
Breaking down of proteins in cells is an example of metabolic, specifically catabolic, reaction. It occurs with the aid of enzymes called PROTEASES that catalyze the reaction. Protease enzyme helps regulate the breakdown of proteins by binding to them.
Answer:
Difference between the two polysaccharides cellulose and starch are the following :
1) Both cellulose and starch are formed from glucose. The difference is that cellulose is formed from beta glucose while starch is made up of alpha glucose.
2) Starch is the storage form of glucose in plant body parts such as roots, leaves etc while Cellulose is present in the cell wall of plant body.
Answer:
exposure to ultraviolet radiation is a correct answer.
Explanation:
Ultraviolet light exposure results in the formation of pyrimidine dimers. Ultraviolet radiation damage the DNA by resulting in chemical changes.
Ultraviolet radiation is absorbed by the pyrimidine bases( cytosine and thymine in DNA) and result in the formation of covalent bonds between the succeeding bases.
The formation of the pyrimidine dimers results in the distortions of DNA helix and disrupt the base-pairing during the replication of DNA which results in a mutation.
Acute diseases are sudden, severe, and short term only. They quickly appear and worsen without warning and they disappear. Examples of this are flu or colds.
Chronic diseases, on the other hand, are long-developing diseases. The symptoms have been present for long time and it worsens as time progresses. Examples of this are Osteoporosis and heart disease.
