When alpha-helical or beta-pleated sections of the polypeptide chain fold over one another to form a compact ball-like, or globular, molecule, the protein structure is said to be tertiary.
<h3>What section of the polypeptide chain results in the formation of the alpha-helix or beta pleated sheets?</h3>
The bonds that occur between every fourth amino acid in the alpha helix twist the chain of amino acids. The "pleats" in the -pleated sheet are created by hydrogen bonds forming between atoms on the polypeptide chain's backbone.
Beta-Pleated sheets and alpha-Helixes are examples of a protein's secondary structure. Both of them are created by hydrogen bonds between the amino H and carbonyl O of different amino acids.
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Answer:
A (if it is a multi-answer question) also B. Even also C.
Explanation:
C is definitely not the correct answer because germs and microbes are living things and are made of only 1 cell. The cell is also the smallest unit of life because it is called "the building blocks of life", so it has to be the smallest unit of life. Even C, because cells multiply using an existing cell, just like we humans reproduce. First, it duplicates all of its parts, or contents, including the DNA, then they split to create a new cell, (or if i'm incorrect, 2).
Use the chart to help.
Answer: A. Research into a phytochemical from a plant which might inhibit cancer development.
Explanation:
The chemoprevention is a process of utilization of chemical formulations such as medication, supplements and vitamins to the stop the growth of cancer cells. This is necessary and important for people which are at high risk of developing cancer.
The research for the phytochemical derived from the plants can be an example of chemoprevention as this will help in inhibiting the cancer development.
A closed loop system is one where the ouput of the system is at least part of the input. In a refrigerator, the output of the cooling system (the cold air inside the refrigerator) is measured, and is fed back into the system to determine whether the system needs to continue cooling.
<span>An example of a fridge that was an open loop system would be one that turns on and cools for 1 hour every 6 hours, regardless of internal temperature.</span>
Answer:
A. Predation
B. Competition
C. Limited Resources
Explanation:
ABC are negative factors so they can lead to natural selection. D is a positive factor that will not lead to natural selection.