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brilliants [131]
3 years ago
10

Tion 5.

Biology
1 answer:
Sedaia [141]3 years ago
3 0

A cell membrane pump helps human cells to maintain a relatively constant sodium and potassium  concentration.

<u>Option: A</u>

<u>Explanation:</u>

Sodium potassium pump is a plasma membrane protein that utilizes energy ATP — Triphosphate Adenosine turning into ADP — Adenosine Diphosphate to deliver intracellular and extracellular sodium (NA+) and potassium (K+) ions sequentially. The purpose of this entire mechanism is to preserve cell equilibrium.

The extracellular medium has a greater concentration of Na while the K concentration of the intracellular fluid is lower. Proteins trap sodium ions in the cytoplasm and pump them out from the cells to preserve cell stability while preserving concentrations. Within the cells proteins inject potassium ions into the cell.

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When blood glucose levels are high and the glucose is not utilized for cellular respiration, the human body will store this gluc
Ugo [173]

Correct answer: Glycogen  

Glycogen is a form of polysaccharide of glucose molecule which serve as energy storage unit in the humans. The excess glucose in the body is stored in the form of glycogen in the muscles and the liver.

The muscles can store upto 500 gram of glycogen and liver can store 100 gram of glucose. Therefore, any carbohydrate which is consumed beyond this limit are converted to and stored as fat.

Glycogen that are stored in muscle are broken down into glucose while  the liver cell glycogen are broken down into glucose as a circulating energy source to be used by the body.

 






3 0
3 years ago
Read 2 more answers
Creating hypotheses based on observations.A hypothesis is a general principle or explanation that is derived from observations.
Alex17521 [72]

Answer:

  1. False
  2. True
  3. True
  4. False
  5. False
  6. True

Explanation:

A hypothesis is a supposition draw from data to carry an investigation or an argumentation.

1. The onion cells I looked at have a nucleus. False, even though the statement is true, is not a hypothesis because is not a supposition, it is rather an observation.

2. All onion cells have a nucleus. True, it is s a <u>valid hypothesis</u> because after the observation of 10 cells you draw a conclusion or supposition and affirm that all onion cells have a nucleus.

3. All cells have a nucleus. True, it is a<u> valid hypothesis</u> it contains a supposition derived from data observation

4. Some cells have a nucleus. False, the hypothesis is not valid because all of the observed cells contained nucleus not only some of them.

5. Only onion cells have a nucleus. False, after the observation of the different type of cells you see that they all had nucleus.

6. If I look at 10 skin cells from my hand, each one will have a nucleus. True, after the observation of different cells you can infer that if you look at your skin cells, they will have a nucleus.

6 0
3 years ago
In an experimental set up, starch is placed in dialysis tubing and suspended in water. When lodine is added to the water, over t
Anettt [7]

Answer:

c. The starch stayed in the bag and the iodine leaked into the bag and the reacted with it, turning the solution black.

Explanation:

According to the given information, the solution inside the dialysis tubing has starch while water present outside has iodine. The color of the water present outside the dialysis tubing does not change which means that starch did not leak out of the bag and stayed in the bag itself. On the other hand, the starch solution present inside the bag turned black representing the fact that iodine entered the bag. The reaction of starch with iodine produces a blue-black color.

7 0
3 years ago
Which are homogeneous mixtures? Check all that apply. vinegar trail mix orange juice with pulp sugar water sand soda pop in a se
artcher [175]

Answer:

-Vinegar

-Sugar water

-Soda pop in a sealed bottle

Explanation:

4 0
2 years ago
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What are two different events that occur during metaphase?​
e-lub [12.9K]

Answer:

The next two major events that take place in mitosis are the alignment of chromosomes at the center of the cell and the subsequent separation of sister chromatids to opposite mitotic spindle poles. These two events occur in metaphase and anaphase, respectively.

Explanation:

7 0
3 years ago
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