Answer;
-Channel, Recognition, reception, transport
Explanation;
Membrane proteins serve a number of functions:
• Channel proteins: allow dissolved molecules to diffuse through the membrane. Some of these proteins are structured in a way that allows only certain small molecules or ions through.
• Carrier proteins: These have binding sites that allows them to bind to certain substances and physically move the substance from one side of the membrane to the other.
• Receptor proteins: These proteins have active sites shaped to fit specific signal molecules, such as hormones. Once the protein is activated by the substance, it sets off a series of changes in the cell,such as increased metabolic rate or cell division.
• Recognition proteins: These proteins, called glycoproteins (glyco = sugar) have complex carbohydrates attached to them. These form the identification system that allows your body cells to recognize each other as self instead of foreign.
• Protein filaments: Long strands of protein on the inside surface of the membrane help support and strengthen the cell membrane, forming the cytoskeleton.
Answer:
I d k really but my educated guess is A- The Sun has a structure similar to Earth's structure * even tho the suns structure is completely gaseous is similar to earth w the layers ii don't know
Explanation:
Hope it Helped !
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Answer:
Negative regulation
Explanation:
In the trp operon, tryptophan binds to the repressor protein, then this complex binds to operator effectively blocking gene transcription preventing the production of enzymes that aids in the synthesis of tryptophan. This happens when high levels of tryptophan is detected. This, it is a repressible/negative type of regulation.
If u are specificly talking about water in the air space of the leaf going out into the atm , than that's called simple diffusion .
