Answer: Arginine is an amino acid that is incorporated into proteins. So if cells can not make or obtain arginine, the cell can not make proteins needed for survival.
Explanation:
Arginine is an amino acid used to build proteins, and it is classified as a semiessential or conditionally essential amino acid.
Proteins are large molecules consisting of long chains of amino acids. They perform many functions such as catalysing metabolic reactions, providing structure to cells and organisms, and transporting molecules, among many others.
Most notably, arginine is part of proteins that play an important role in many different processes such as cell division, immune function, wound healing and the release of hormones. <u>Without this amino acid, the cell cannot manufacture the proteins necessary for proper functioning</u>. So the cell dies because it cannot function properly.
The lac operon is encodes multiple enzymes which catabolize lactose, for example beta-galactosidase
<h3>What is an operon?</h3>
An operon is a cluster of genes that are transcribed together to give a single messenger RNA (mRNA) molecule which which is used for the synthesis of multiple proteins.
An example of an operon is lac operon.
The lac operon is encodes multiple enzymes which catabolize lactose, for example beta-galactosidase.
Learn more about lac operon at: brainly.com/question/1695549
Answer: This situation is an example of directional selection.
Explanation: The graph shows a shift to one particular extreme. Larger body size is being selected over smaller body size.
Answer:
A. Controls what goes into and out of the cell
Explanation:
If what you are referring to is the image attached, then the answer would be A. The structure that is labelled A is called the cell membrane.
The cell membrane is what we call semi-permeable. This means that some materials can go through them and others cannot without the help of other factors. The cell membrane encases the cell and protects the cell. It lets nutrients, minerals, and waste to move in and out of the cell.
Other choices:
B describes the cytoplasm.
C describes the nucleus
D describes the vacuole
Is the 2 (squared)? or no?
