Answer:
Water, carbon dioxide, and oxygen are among the few simple molecules that can cross the cell membrane by diffusion
Explanation:
Transport proteins generally perform two types of transport: “facilitated diffusion,” where a transport protein simply creates an opening for a substance to diffuse down its concentration gradient; and “active transport,” where the cell expends energy in order to move a substance against its concentration gradient
The biceps brachi (biceps) is a skeletal muscle
It's phase contrast microscopy
Because you need to contrast to see the specimen
The answer is they go parasite seeing. It is Paris sightseeing.This question or joke is commonly and popularly used in punchline algebra books that can be cracked by interpreting and decoding English expressions into algebraic expressions and setting up the equations.
The heads of the phospholipids, which are positioned outwards on both layers, are hydrophilic. The trails of both layers are hydrophobic and face inwards, and protected by the outer layers.
