1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Ierofanga [76]
3 years ago
14

20.

Biology
1 answer:
n200080 [17]3 years ago
5 0

Answer:

Structurally, proteins are different from carbohydrates because all proteins contain nitrogen (option C).

Explanation:

The basis of the chemical composition of proteins is carbon, hydrogen, oxygen and nitrogen, so all proteins have nitrogen in their structure. Some proteins also possess phosphorus and sulfur atoms, among others.

Proteins are biomolecules formed by the union of multiple amino acids through carboxyl-amino bonds, called petidic bonds. Their content of nitrogen and other atoms in their structure is what makes them different from carbohydrates.

The other options are not possible because:

  • <em>Only some proteins contain </em><u><em>iron</em></u><em> in their composition.</em>
  • <u><em>Potassium and helium</em></u><em> are not part of the protein structure. </em>

You might be interested in
Which two processes does this diagram most directly models?
svet-max [94.6K]

The correct answer is D. Homeostasis and transport of molecules

Explanation:

The diagram presented shows the movement of glucose from outside the cell to inside it. Also, this diagram illustrates this process occurs through the cell membrane and there is a higher concentration outside the cell.

This complex process illustrates the transport of molecules in the cell, which refers to a mechanism that allows molecules and substances to move in and out of a cell. Moreover, this process implies molecules (in this case glucose) move to one area with a lower concentration to preserve equilibrium as shown by the diagram. Additionally, this equilibrium is part of homeostasis which is a set of mechanisms to main an equilibrium in the cell, including appropriate levels of glucose and other substances.

3 0
3 years ago
Explain why greenhouse gases are essential and yet a concern?
kramer

Answer:

Green house gases are the type of gases present in the air which have the ability to trap heat of the earth's surface. Gases like carbon dioxide and methane are found naturally and are known to play an important role in earth's climate. If they are not found the earth' s climate would be too cold creating problem for survival of life on the earth.

These green house gases absorb the emit the radiation in the thermal infrared range. These gases act like a blanket and save earth surface from infrared radiation by absorbing them and prevent them from escaping out of the earth surface.

But now a days due to increased in the concentration of green house gases like carbon dioxide and methane due to pollution and deforestation causing a great problem called as green house effect which lead to global warming and it a great concern for all the people now a days.





8 0
4 years ago
Read 2 more answers
How do these white blood cells help protect the body
irina1246 [14]

Answer:

They fight against infections and disease.

Explanation:

5 0
3 years ago
Read 2 more answers
You are a dietician. Your client wants to discuss an image he found online while trying to conduct his own research about health
Sever21 [200]

Answer:

....

Explanation:

heud

8 0
3 years ago
What do you belive can cause decreased levels of O2 in bodies of water and how do you propose we solve the issue?
Keith_Richards [23]

Answer:

Death of plankton, and excess in feces and decomposition

Explanation:

Clean ups, and attempts to feed and grow populations of oxygen producing plankton.

3 0
3 years ago
Other questions:
  • The light colored rock pocket mice in New Mexico blend in with the sandy soil of the area, but on darker lava flow, the light co
    6·2 answers
  • The oxygen atoms that become part of the glucose molecule as a result of photosynthesis were originally present in molecules of
    6·1 answer
  • What if the following is a chemical reaction A. Breaking a glass pane B. Freezing water C. Digestion of food D. Cutting down a t
    11·1 answer
  • According to the Universal Law of Gravitation, every object attracts every other object in the universe. Why can’t you feel the
    12·2 answers
  • Filling in a wetland in order to build on it is likely to A. increase the species living there B. reduce the amount of clean wat
    9·1 answer
  • Most alleles of the Drosophila cut (ct) gene are stable. For example, all progeny from crossing ct1 to ct2 to yield ct1 /ct2 het
    8·1 answer
  • A Lewis Dot Structure shows only valence electrons.<br> A. True<br><br> B. False
    13·2 answers
  • PLEASE HELP WILL GIVE BRAINLY AND POINT!!!!
    9·2 answers
  • 22. To test whether a plant grows better in acidic or basic soil, the
    12·1 answer
  • Where does erosion happen in a curvy river
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!