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maw [93]
3 years ago
13

What are chromatids? How do they differ from chromosomes?

Biology
1 answer:
Umnica [9.8K]3 years ago
4 0
A chromosome is made of two sister chromatids that are joined by a centromere.
You might be interested in
At the site of the rough endoplasmic reticulum, proteins that are destined for secretion are manufactured. Insulin is a protein-
Eva8 [605]

Answer:

The type of vesicular transport involved in the exporting of protein-based hormones, such as insulin, into the bloodstream is regulated exocytosis.

Explanation:

In general terms, exocytosis is a type of active transport that allows intracellular substances are released to the extracellular space, through of vesicles that fuse with the plasma membrane, which allow the exit of substances from inside the cell.

Regulated exocytosis is the specific vesicular transport for the secretion of substances, such as hormones. For this type of transport to exist, the presence of an extracellular signal is required, which will activate the fusion of the vesicles.

In the case of insulin, the external signal originates with the increase in blood glucose levels, a signal that penetrates the intracellular space and generates an increase in insulin production in the islets of Langerhans (pancreas).

Before insulin secretion occurs, the cell must be depolarized, allowing calcium to enter, which promotes transport by regulated exocytosis of insulin to the extracellular space.

Learn more:

brainly.com/question/1109181

4 0
3 years ago
Which statement about how organisms depend on abiotic factors in an aquatic ecosystem is not true?
Nat2105 [25]
The answer is <span>a. most living organisms can survive in environments with several different temperature and salinity levels.

</span>Aquatic plants and animals depend on dissolved oxygen for respiration. The other abiotic factors that impact their life in an aquatic ecosystem are temperature, salinity, and flow and they determine the quality of their life. <u>It is not true that most living organisms can survive in environments with several different temperature and salinity levels.</u> On the contrary, a few species can live in <span>environments with several different temperature and salinity levels, for example, some bacteria. The most organism can survive in a specific range of abiotic factors.</span>
5 0
3 years ago
Read 2 more answers
|
Verizon [17]

Cellulose makes the cell walls of all plant cells.

Option B

<h3><u>Explanation:</u></h3>

Enzymes are biomolecules that act as biocatalysts and to enhance the rate of a chemical reaction. Lipids and proteins make up the cell membrane bilayer. Cholesterol is a lipid molecule that comes under the category of very low density lipoprotein. Its not associated with storing the genetic information. The DNA stores the genetic information.

Glucose is the chief respiratory substrate of a cell. Its not associated with the increase in rate of a reaction. But cellulose is the molecule that is a polymer of glucose that is associated with the formation of cell walls in plants.

5 0
3 years ago
What conversion factor is needed to change from kilometers to meters
Vesna [10]

。☆✼★ ━━━━━━━━━━━━━━  ☾  

To convert from kilometers to meters, you would multiply by 1000

So, the conversion factor would be x 1000

This can also be written as x 10^3

Have A Nice Day ❤    

Stay Brainly! ヅ    

- Ally ✧    

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4 0
3 years ago
Which example is an inherited trait?
pychu [463]

Answer:

Eye Color.

Explanation:

You inherited your eye color and genes from your parents. You can easily change how fast you drive, your accent and your food preferences no matter who you're related to.

Have a great day!

#Equestrians

5 0
2 years ago
Read 2 more answers
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