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RUDIKE [14]
4 years ago
13

14. Operons allow prokaryotes to

Biology
1 answer:
Vladimir79 [104]4 years ago
4 0
14: Operons allow prokaryotes to replicate DNA at the appropriate time.

Operons are specific regions of genes that are linked to a singular process. They ensure that the expression of these genes does not go unchecked and only occurs when necessary. Two key examples of this in humans are the lac operon and trp operon. 

15. The central dogma of molecular biology is:

DNA to RNA to Proteins

Protein Synthesis occurs in 3 steps. 

First our DNA is translated into RNA. Next the RNA is sequenced into Amino Acids by reading the corresponding 3-Base Codons. These Amino Acid sequences form various protein structures. 
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1. The cells in our bodies are surrounded by these types of solutions.
Ksenya-84 [330]

Answer:

1. The cells in our bodies are surrounded by these types of solutions. → Isotonic solution.

3. When an animal cell is places in this solution, it will burst (get layer)  → Hypotonic solution.

4. When an animal cell is placed in this solution, it will shrivel or shrink (get smaller) → Hypertonic solution.

5. This is a solution with more solute than the cell. Hypertonic solution.

Explanation:

The cells in the body are in a balance of substances —concentration of solutes— between their cytoplasm and the extracellular space. This balance is dynamic in living beings, due to the constant exchange of ions and substances between the intracellular and extracellular space.  For this reason, the extracellular medium is isotonic with the cytoplasm.

<u>A cell can lose or gain water depending on the amount of solutes that a medium has in which it is found</u>, with respect to the cytoplasm. This difference in solutes concentrations produces an osmotic gradient that drags water from the least concentrated solution to the most concentrated, through the process of osmosis, which seeks to achieve an equilibrium of concentrations.

  • <em>When a animal cell is exposed to a </em><em>hypertonic solution</em><em> </em>—<em>with a higher concentration of solutes</em>— <em>it loses water and tends to </em><em>dehydrate and become smaller</em><em>.</em>
  • <em>An animal cell in a </em><em>hypotonic solution</em><em> receives water, so it can </em><em>expand and even burst</em><em>.</em>

In practice, the concentrations of intracellular and extracellular solutes depend not only on the osmotic gradient, but also on the concentration gradient of substances.

5 0
3 years ago
PLEASE HELP ME! ILL GIVE BRAINLEIST IF YOU HELP ME! :(
lakkis [162]

Answer:

View the explanation!

Explanation:

Photosynthesis: Anabolic

Cell Respiration: Catabolic

Releasing energy: Catabolic

Molecules breaking down: Catabolic

Multiply: Anabolic

Builds up: Anabolic

Hope this helps! UwU

7 0
3 years ago
Why do enzymes speed up chemical reactions? Enzymes
Alchen [17]
Enzymes lower the activation energy in reactions. The lower the activation is, the faster the rate of the reaction.

I hope this helped you! <3

7 0
3 years ago
Read 2 more answers
*20 POINTS*
Sati [7]

Answer:

Explanation:

Cellular respiration is a process which occurs in the all living cell all the time. It is an oxidative process by which respiratory substrate such as glucose (C₆H₁₂O₆) is oxidised completely in presence of oxygen(O₂) to produce carbon dioxide (CO₂), water and energy in the from of ATP. ATP is is the energy currency of the cell. The process of cellular respiration begins in cytoplasm and completes in the mitochondria of the cell.  

The overall reaction of respiration is given below:  

         C₆H₁₂O₆+ 6O₂ → 6CO₂+ 6H₂O + Energy (ATP)

8 0
3 years ago
Why arent algae and plants in the same kingdom?
kondaur [170]
<span>
</span><span>
Algae and plants may look similar and belong to the same Eukarya domain, they don't belong to the same kingdom because they are simply different in many ways including in their behavior, structure and habitat. In totality, they differ in more ways than they are alike.

Plants are in the Kingdom Plantae, while Algae are in the Protista kingdom. Plants are multicellular, while most Algae are single-celled, although some can be multi-cellular. 




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4 0
4 years ago
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