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goldenfox [79]
3 years ago
6

Earth has an abundant supply of water and it is essential for human beings to live. More than half of an adult body mass is wate

r. One of the important places water is found is in blood. Blood transports nutrients like glucose throughout the body. What property of water is most important in allowing glucose to be dissolved in blood?
A.
Water is able to moderate temperature well.
B.
Water expands as it freezes.
C.
Water is an excellent solvent.
D.
Water exhibits cohesive behavior.
Biology
1 answer:
miskamm [114]3 years ago
4 0

Answer:

<em>The correct option is C.  Water is an excellent solvent.</em>

Explanation:

Plasma can be described as blood which is made up of 92% water. The basic role that water plays in the plasma is of a solvent. It readily dissolves substances in it and transports them. Hence. option C is correct.

Option A cannot e considered because moderation of temperature won't fulfil the task of the blood i.e transportation.

Option B cannot be considered because expansion or compression of water are not such factors which help in blood transportation.

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Sodium and potassium ions move in and out of the axon when the membrane is ______
Ostrovityanka [42]

Answer:

Answer : Depolarized

Explanation:

Sodium and Potassium ions tend to move inside of the axin when the membrane is depolarized.

A change in polarity occurs in the axon membrane when a nerve impulse travels across it.  At the beginning of an action potential or nerve impulse , the ions of sodium tend to move inside of axon causing depolarization. As a result potassium ions tend to move outside of the axon causing re polarization. Hence, this effect causes the nerve impulse to travel in one direction only inside the axon.

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What would most likely happen if a person increased the amount of saturated fat in his or her diet?
Murrr4er [49]

Answer:

The person's risk of cardiovascular disease would increase.

Explanation:

saturated refers to all single bonds in the hydrocarbon chain, meaning no kinks in the chain. The hydrocarbon has the most number of carbons it can have, as there are all single bonds. If the hydrocarbon has even one less carbon, there would be kink, and it would be unsaturated and liquid. Our body needs less carbon, so unsaturated fats are better. But having saturated fats means no liquid, rather solid, which means harder for the blood to get to the heart. So your risk would cardiovascular disease would increase

3 0
3 years ago
Need help with this one
rusak2 [61]

Answer:

i think its a but i am not absoulty sure

Explanation:

7 0
3 years ago
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Why would a scientist want to test water when testing various food items for biomolecules?
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Answer:

Biomolecules play indispensable roles in all life processes, including disease development, so the accurate detection of biomolecules is critical to disease diagnosis and therapy

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2 years ago
With the proper stimuli, chemoreceptors and mechanoreceptors are depolarized. This is a result of:Sodium channels opening as a r
Alex73 [517]
<h2>Sodium channels </h2>

Explanation:

Depolarization is a result of sodium channels opening as a result of chemical or pressure-based stimuli    

  • Depolarization starts when a threshold stimulus applied on a neuron via Na+ mechanically operated channels that trigger action potential
  • Action potential is an efficient signaling process by which distantly located cells communicate to each other
  • Depolarization of membrane potential is due to influx of Na+ via voltage gated Na+ channels
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3 years ago
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