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rjkz [21]
3 years ago
15

Foods are broken down into simple molecular subunits for distribution and use throughout the body. which type of simple subunits

, listed below, is used preferentially as an energy source?
Biology
1 answer:
ahrayia [7]3 years ago
5 0
Could you please post a picture of the options
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What is the minimum pH difference such that transfer of one H ion across the membrane would provide enough energy to make one mo
Studentka2010 [4]

Answer:

The minimum difference is already the value of 1

Explanation:

When the pH is not balanced between the extracellular and intracellular environment, the cell could go into shock, that is why in the face of the minimal differences in pH between the internal or external environment, the proton pump is activated, this is how the hydrogen ion or positively charged protons cross the membrane and indirectly generate ATP molecules.

5 0
3 years ago
Why is cell size limited
Lynna [10]
Cells are limited in size because the outside also known as the plasma membrane must transport food and oxygen to the inside of the cell. This can be represented by what is known as the surface to volume ratio.
6 0
3 years ago
Compare the costs and benefits of hydro power to that of geothermal power. (Please include two costs and two benefits.)
EleoNora [17]
Hydroelectric Power 
The benefits are: <span><span>
1.       </span>Hydroelectric power is mainly a renewable source of energy. It relies on the stream cycle of water which do not cause pollution.</span>
<span><span>2.       </span>Hydroelectric power also helps and promote water reservoir and storage.</span>

The cost are: 
<span><span>1.       </span>0.85 cents per kWh is the average cost in the US.</span><span><span>
2.       </span>Conventional installation costs $1,000-$5,000</span>   


Geothermal Power 
The benefits are: <span><span>
1.       </span>There is no pollution</span><span><span>
2.       </span>We lessen the utilization of fossil fuels</span>

The costs are: <span><span>
1.       </span>$0.03<span> to $0.035 per kWh is the cost of electricity by The Geysers.</span></span>
<span><span>2.       </span> <span>$20,000 to $25,000 costs to build this power plant

Hope this helps.</span></span>
8 0
3 years ago
For sucrose to be moved from a leaf (source) cell to a root (sink) cell, sucrose is first actively transported into the phloem f
Natali5045456 [20]

Answer:water diffuses into the phloem from the xylem and sucrose moves to the sink

Explanation:Translocation is the movement of ready produced food substances from the site of production to places in the plant where food is needed. such as the roots.the place where food is produced is called the source, the the place where food is used up is called the sink.the leaves are the source in a plant.photsoynthates, which is the plant manufactired food, may move up and down the stem ,majorly to areas of storage and growth.

Surose is the major intermediate product of photosynthesis.it is the form in which sugar is transported.it is conducted by the phloem vessels.this takes place in the long sieve elements that forms the sieve tubes

The high percentage of sucrose in the phloem sap causes water to pass into it from the xylem. This then causes the sap to move from source to sink.

At the sink, sucrose diffuses out of the phloem.it is either stored up or used for growth and repairs

4 0
3 years ago
In an ecosystem, why can only one species fill an ecological niche? (Site 1)
Anastaziya [24]

Answer:

Only one species can fill an ecological niche because each niche is destined exclusively for each species, since its structure, physiology and behavior determine it.

Explanation:

An ecological niche is the way in which each species relates to its environment, to other species and takes advantage of the resources available for its development, being an exclusive and individual characteristic of that species.

The ecological niche is a concept that many consider abstract, since it is unique for a species. Each species has a physical structure, functioning and behavior that differentiates it from the others, which leads it to occupy a certain place within an ecosystem, which would be its ecological niche.

Learn more:

Ecological niche brainly.com/question/718384

6 0
3 years ago
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