Answer:
C. They are made from many carbon atoms
Explanation:
<h2>
Answer:</h2>
<u>H2O</u> is the chemical formula for water, meaning that each of its molecules contains one oxygen and two hydrogen atoms H.
The lipid bilayer is a membrane composed of two layers of phospholipids. A phospholipid is a molecule made up of a polar phosphate head and non-polar fatty acid chains.
- The diagram makes reference to the different components of the lipid bilayer.
- The main components of the lipid bilayer are phospholipids and cholesterol.
- The lipid bilayer is also composed of different proteins such as transmembrane integral proteins (channels) and peripheral proteins.
The structures observed in the diagram are as follow:
- Phospholipid molecule (A). Function: structural.
- Polar (hydrophilic) head of the phospholipid (B). Function: stabilize the membrane by its interaction with water.
- Integral glycoprotein (C). Function: signaling pathways and cellular communication
- Oligosaccharide attached to a peripheral protein (D). Function: form the glycocalyx.
- Cholesterol (E). Function: provide fluidity to the lipid bilayer.
- Integral protein (F). Function: signaling pathways and cellular communication.
- Phospholipid bilayer (H-I). Function: Semipermemable barrier that separates the intern cell medium from the surrounding environment.
- Transmembrane integral protein (protein channel) (G). Transport of materials.
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Answer:
Greenhouse gases build up in the atmosphere, trapping warmth in.
Answer:
1. Mutation
2. Gene flow
Explanation:
New traits can be made when there is an error in gene replication, called a mutation. The mutation will give the offspring different genes that might be harmful or beneficial to the organism.
Gene flow happens when any organisms from other places immigrate into the population. If these organisms can reproduce with the local organisms, it will introduce new traits that was not originally come from the population.