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olchik [2.2K]
3 years ago
8

Which of the following places is generally not considered an open system?

Biology
1 answer:
belka [17]3 years ago
8 0
B, the earth because there is a limit of how much matter is exchanged
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All living organisms break down sugar to obtain energy using cellular respiration, Which of the following chemical reactions rep
Ghella [55]

Answer:

The chemical reaction that represents the process of aerobic cell respiration is oxygen + glucose → water + carbon dioxide + energy

Explanation:

Cell respiration occurs in the mitochondria of eukaryotic cells and consists of a series of chemical reactions in which energy in the form of ATP molecules is obtained from a glucose molecule in the presence of oxygen.

<u>Glucose is the main energetic substrate</u> to be able to synthesize energy in the form of ATP, through oxidative phosphorylation. At the end of the process ATP is obtained as products, and as waste compounds water and carbon dioxide, which can be schematized in the following chemical reaction:

              <em>              C₆H₁₂O₆  +  6O₂ →  6H₂O  +  6CO₂ + ATP ↑</em>

<em>                Glucose + Oxygen → Water + Carbon dioxide + Energy ↑</em>

This reaction summarizes what happens in aerobic cellular breathing, which is necessary to synthesize energy for cellular functions.

The other reactions:

  • <em>oxygen + water </em><em>→</em><em> glucose + lactose </em>
  • <em>glucose + lactose </em><em>→</em><em> oxygen + water </em>
  • <em>water + carbon dioxide + energy </em><em>→</em><em> oxygen + glucose</em>

<em>do not represent the components or the order of the reactions that occur in aerobic cell respiration</em>

7 0
3 years ago
What specialized structures does crayfish have that make it well suited to its environment​
Zinaida [17]
Crayfish are invertebrates which means they don't have a backbone. They are also arthropods, which means that they have a protective exoskeleton on the outside of their body. Other arthropods include insects, spiders, and centipedes. Crayfish continually shed their exoskeleton and regrow a new one. During this transition is when they are most vulnerable to predators because they aren't protected by their outer shell.

Crayfish are found all over the world in many different freshwater environments, such as rivers, creeks, springs, and swamps. But this doesn't necessarily mean that you will be able to find them. They are somewhat cryptic because they dig out homes for themselves under rocks and blend in well with their environment. Crayfish will ardently defend this dwelling against intruders using their strong front claws
8 0
2 years ago
Read 2 more answers
A cell membrane is a phospholipid bilayer.
nirvana33 [79]

Answer:

b. The surfaces of the membrane are nonpermeable.

Explanation:

This helps the cell membrane to protect the cell.

5 0
2 years ago
Read 2 more answers
The energy conversion process of nuclear _______ appears to best explain the source of solar energy.
Aleksandr-060686 [28]

Answer:  The energy conversion process of nuclear fusion appears to best explain the source of solar energy.

The answer is Fusion

Explanation:

Please let me know if you need a explanation

Have a great day.

3 0
3 years ago
Imagine you are looking out at a field of flowers. 774 plants have red flowers and 226 plants have white flowers. What can you s
Ainat [17]
Red is dominant in comparison to white. Hence there will be more red flowers than white as white it the reccessive genotype.
3 0
3 years ago
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