4 Which statement best describes the graph shown?

Biology

1 answer:

sergey [27]3 years ago

3 0

Graph attached

Answer:

b. Less energy is needed to start reaction B.

Explanation:

The graph shows two different reactions and the energy required over time

a. More energy is released by the original reaction. - this is false, more energy is required for the original reaction to proceed

b. Less energy is needed to start reaction B. - this is true, the peak of the curve is lower showing less energy is required

c. The original reaction is catalyzed. - this is false, likely reaction B is catalyzed

d. Reaction B occurs at a slower rate.- false, they occur at the same rate.

You might be interested in

Ras is a g-protein that is activated when a growth factor attaches to egfr. its activation results in the replacement of a gdp m

kodGreya [7K]

Answer:

A mutation in Ras protein which will cause hyperactivity will eventually lead to cancer.

Explanation:

Ras protein was first discovered in Rous sarcoma virus (RSV) and it is a proto-oncogene product. In normal conditions, it plays an important role in cellular signalling but in case of gain of function/hyperactivity it gets converted into cellular oncogene. In several types of cancers a point mutation has been reported in Ras protein.

Just like G protein, it is also a GTPase switch protein but unlike G protein which is trimeric, it is monomeric. In the plasma membrane, it is attached with the help of lipids like prenyl or palmitoyl groups. During signal transduction pathway when it gets activated, it downstream activates MAPK pathway and causes gene expression but when it gets hyperactivated it causes over expression of genes leading to cancer.

4 0

3 years ago

What shape represents the phosphate in a nucleotide?

ruslelena [56]

Answer:

Each nucleotide is made up of a nitrogenous base, a pentose sugar, and a phosphate. The remainder of the molecule forms the pentose sugar.

Explanation:

8 0

3 years ago

Suppose corinna undergoes a surgical procedure in which a catheter is inserted into her blocked artery and a balloon is inflated

Misha Larkins [42]

Balloon catherisation (angioplasty)