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:

Only some proteins contain iron in their composition.
Potassium and helium are not part of the protein structure.

You might be interested in

In chickens, feathered shanks, A, are dominant to clean, a, and white plumage, B, is dominant to black, b. A feathered-shanked,

stiks02 [169]

Answer:

I believe it is A.

Explanation:

Im not 100% sure though so I'm so sorry if it's wrong.

6 0

2 years ago

Read 2 more answers

Complete the paragraph on freshwater ecosystems by using the following terms: merge, mountain streams, oxygen, plankton, plants,

ddd [48]

Answer

Answer:

Rivers often start from the mountain streams and contain high amounts of oxygen. Rivers and streams grow larger as these waters merge. Rivers pick up sediments from the land as they flow. Lakes support many varieties of organisms, including plants in shallow,

3 0

2 years ago

What is the connective tissue covering the entire muscle called

Alborosie

The epimysium

each muscle is surrounded by a connective tissue sheath called the epimysium fascia, connective tissue outside the epimysium, surrounds and separates the muscles.

6 0

2 years ago

Which of the following is a contributing reason behind emerging disease?

padilas [110]

The overuse of antibiotics. is a contributing reason behind emerging disease?

3 0

3 years ago

During photosynthesis what role is played by the radiant energy of the sun

Natali [406]

Answer:

The radiant energy of the sun is used by chlorophyll as an energy source to excite photosystems I and II, which are located in the membrane of the thylakoid.

Explanation:

When the light energy is converted into chemistry inside the photosystem, electrons are released and travel from photosystem II to photosystem I, through a protein complex; plastoquinone, cytochrome B, and plastocyanin.

When light hits, enzymes with REDOX power are activated while in photosystem I, one of the electrons converts NADP to NADPH, capturing protons from the stroma. Finally the NADPH and the ATP generated by the ATP synthetase of the thylakoid membrane, are products of the light stage of photosynthesis

7 0

2 years ago