The organs are known as Vestigial organs. The evolution from land-dwelling animal to the marine animals has led whales as well as dolphins, to lose hind limbs. The pelvic and leg bone serves no purpose in them and just provide the anchorage to muscles
The endomembrane system is very important for synthesizing, processing, and movement of lipids and proteins in the cell.
The smooth ER function is mainly used for lipid synthesizing and processing, while the rough ER function is for protein synthesizing
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PZ120 is not considered to be an enhancer to transcription in the metallothionein 2a gene.
<h3>About metallothionein 2A.</h3>
Metallothionein-2 is a metallothionein protein that in humans is encoded by the MT2A gene.
In human it is expressed in;
- right lobe of liver
- olfactory bulb
- left uterine tube
- external globus pallidus
- right lobe of thyroid gland
- upper lobe of left lung
- Region I of hippocampus proper
- right lung
- left lobe of thyroid gland
It's molecular function are;
- Protein ion binding
- Zinc ion binding
- Metal ion binding
It helps in various biological processes;
- response to metal ion
- cellular response to interleukin-3
- cellular response to erythropoietin
- negative regulation of growth
- cellular response to zinc ion
- interferon-gamma-mediated signaling pathway
- cellular copper ion homeostasis
- cellular zinc ion homeostasis
- detoxification of copper ion
- cellular response to cadmium ion
- cellular response to copper ion
- nitric oxide mediated signal transduction
- response to bacterium
To learn more about Metallothionein 2a,
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The statement that is correct about plasma membranes is that both plant cells and animal cells have flexible plasma membranes (option C).
<h3>What is the plasma membrane?</h3>
Plasma membrane is the semipermeable membrane that surrounds the cytoplasm of a cell. The semi-permeability of the plasma membrane means it allows some molecules through but blocks other substances.
The plasma membrane is the cellular structure that protects and encompasses the cell's content.
All living organisms possess the plasma membrane, which is also called cell membrane.
Therefore, the statement that is correct about plasma membranes is that both plant cells and animal cells have flexible plasma membranes.
Learn more about plasma membrane at: brainly.com/question/14015347
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Answer: c
Explanation: because it helps by excreting
