Answer: CHANNEL PROTEINS provide openings in the plasma membrane for substances to flow through without changing structure, and CARRIER PROTEINS allow passage of substances through the plasma membrane after undergoing a subtle change in shape.
Explanation: They are described thus:
A channel protein is a protein that allows the transport of specific substances across a cell membrane.
Carrier proteins are proteins that carry substances from one side of a biological membrane to the other. Many carrier proteins are found in a cell’s membrane, though they may also be found in the membranes of internal organelles such as the mitochondria, chloroplasts, nucleolus, and others.
Answer:
Answer is lysogenic cycle.
Explanation:
Lysogenic cycle is a situation where a virus replicate its DNA using a host cell. And it involves the following stages, attachment, penetration, uncoating, biosynthesis, maturation and release.
This cycle is one of the two viral reproductive cycles, the other is lytic cycle.
Because you would not want to change anything in your experiment you are just changing what you are observing