Answer:E) integral proteins
Explanation:
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What are the membrane structures that function in active transport?
A) peripheral proteins
B) carbohydrates
C) cholesterol
D) cytoskeleton filaments
E) integral proteins
E) integral proteins
Answer:1. They allow the movement of molecules from one cell to another, enabling communication between cells.
Explanation:the cell wall is a rigid and cellulose containing wall, which surrounds the plasma membrane.
During lignification, small pores appear on the cell wall through which cytoplasmic strands extend.these pores are the plasmodesmata,which provides connections between plant cells
A law is something that can be measured or observed to be true. A theory, is something that can be assumed to be true based on the best available knowledge.
Answer:HIV attacks a specific type of immune system cell in the body. It's known as the CD4 helper cell or T cell. When HIV destroys this cell, it becomes harder for the body to fight off other infections. When HIV is left untreated, even a minor infection such as a cold can be much more severe.
Explanation:
Answer:
<em>Sperm is the only thing that can combine with a egg to create a living breathing organism </em>
Explanation: