Chapter 4 & 5

Question 0

Cytoplasm

Answer 0

Fluid or jelly-like mixture of water, sugars, ions, and proteins

Question 1

Plasma membrane

Answer 1

outer membrane that separates cells contenders from its environment

Question 2

Organelles

Answer 2

Carry out special metabolic functions inside a cell

Question 3

Basic structure and function of cell membranes

Answer 3

Selectively controls exchange between the cell and it’s surroundings, mosaic of different kinds of lipids and bilayers

Foundation is its lipid bilayer- two layers of lipids with tails sandwiched between heads

Question 4

Understand how ATP couples energy release to energy use in metabolism

Answer 4

ATP carries energy but taking energy that has been released by exergonic reactions and delivering energy to endergonic reactions

Question 5

Diffusion

Answer 5

Some substances can diffuse across lipid bilayer

Question 6

Passive transport

Answer 6

Many water-soluble substances follow their concentration gradient through interior of passive transporters in bilayer; no energy input required

Question 7

Active transport

Answer 7

Active transporters in bilayer pump a specific solute through their interior, against its concentration gradient; energy input required