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
igor_vitrenko [27]
3 years ago
11

What is the structure of a protein molecule?

Biology
2 answers:
AlekseyPX3 years ago
6 0
A protein molecule looks like this

Olenka [21]3 years ago
4 0

Protein structure is the three-dimensional arrangement of atoms in a protein molecule. Proteins are polymers — specifically polypeptides — formed from sequences of amino acids, the monomers of the polymer. A single amino acid monomer may also be called a residue (chemistry) indicating a repeating unit of a polymer. Proteins form by amino acids undergoing condensation reactions, in which the amino acids lose one water molecule per reaction in order to attach to one another with a peptide bond. By convention, a chain under 30 amino acids is often identified as a peptide, rather than a protein.[1] To be able to perform their biological function, proteins fold into one or more specific spatial conformations driven by a number of non-covalent interactions such as hydrogen bonding, ionic interactions, Van der Waals forces, and hydrophobic packing. To understand the functions of proteins at a molecular level, it is often necessary to determine their three-dimensional structure. This is the topic of the scientific field of structural biology, which employs techniques such as X-ray crystallography, NMR spectroscopy, and dual polarisation interferometry to determine the structure of proteins.

Protein structures range in size from tens to several thousand amino acids.[2] By physical size, proteins are classified as nanoparticles, between 1–100 nm. Very large aggregates can be formed from protein subunits. For example, many thousands of actin molecules assemble into a microfilament.

A protein may undergo reversible structural changes in performing its biological function. The alternative structures of the same protein are referred to as different conformational isomers, or simply, conformations, and transitions between them are called conformational changes.

You might be interested in
incubation time for the decarboxylase medium is 1 week. Under what circumstances would an early reading be allowable? explain
attashe74 [19]
Hi how you doin hi how you doin
7 0
3 years ago
What is a triacylglycerol ? Discuss the advantages of organisms having triacylglycerol as energy storage molecule?
Sergeeva-Olga [200]

Answer:

Triacylglycerols are acylglycerols with three fatty acid molecules, generally long chain, which can be the same or different; we speak of simple triacylglycerols when there is the same fatty acid in all three glycerol positions, but most are mixed triacylglycerols, with at least two different fatty acids. The properties of triacylglycerols will depend on the type of fatty acids they contain.

Most of the fats and oils of both animal origin (tallow, butter) and vegetable (olive, corn, sunflower, palm, and coconut oils) are formed almost exclusively by triacylglycerols.

Physiologically, triacylglycerols are an important energy reserve. In most eukaryotic cells, triacylglycerols are stored in the cytosol as microscopic fat droplets. In vertebrates there are specialized cells in the storage of fat, adipocytes. In humans, the presence of fatty tissue under the skin, in the abdominal cavity and in the mammary gland stands out.

5 0
3 years ago
You are examining a rigid plant tissue; it does not flex or bend. Tests show that it is not consuming oxygen gas, as would be ex
siniylev [52]

Answer & Explanation:

The examined tissue could be cortex, due to the fact that it's rigid and does not require oxygen, so metabolic processes, like respiration, are not happening. The cortex, or wood, is dead tissue that no longer develops metabolic processes. It starts growing as the plan also grows, and the cambium tissue is in charge of this process.

4 0
3 years ago
What is better for a beginners pet leopard gecko or crested gecko
Sedbober [7]

Answer:

leopard gecko

Explanation:

7 0
3 years ago
Read 2 more answers
Which statement best describes a situation where competition occurs in an ecosystem?
Anna [14]
I think it is 3 but im not 100% sure 
6 0
3 years ago
Read 2 more answers
Other questions:
  • What is an example of the effect of environmental factors on cell differentiation?​
    6·1 answer
  • Some neural tissues retain stem cells and thus the capacity to divide and replace lost neurons. Which of these special senses ca
    5·1 answer
  • How does the nervous system interact with all other systems
    11·1 answer
  • Scientists classifying modern animals are most likely to compare the---
    15·2 answers
  • The largest buttock muscle<br> a. Gluteus maximus<br> b. Tibialis anterior
    9·1 answer
  • The counterclockwise spin of a planet or moon as seen from above the planet's north pole is known as
    9·2 answers
  • Based on the results of this study, what questions remain unanswered? How can these questions guide future research?
    7·2 answers
  • Genes important in the embryonic development of animals such as homeobox containing genes, have been relatively well conserved d
    10·1 answer
  • When Anna eats an apple, the sugars in that apple are broken down into the substance called glucose. Glucose is then burned in h
    11·1 answer
  • How can we make larger drawings ? Can someone tell me the guidelines please help
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!