Cell Membrane Fluidity and Cellular Processes

Flashcards based on key concepts from membrane fluidity and cellular respiration.

The outside of the cell membrane is primarily composed of .

lipids

Cholesterol molecules in the membrane contribute to its .

fluidity

Membranes that are too stiff do not allow for much to enter the cell.

movement

Cell membranes that are freely permeable allow substances to pass through.

all

Adding unsaturated fatty acids to the membrane increases its .

permeability

Saturated fatty acids in the membrane cause the cell to become .

less permeable

If there is less cholesterol in the membrane, it will become .

more permeable

A higher temperature causes the cell membrane to become .

more permeable

In a hypertonic solution, water moves from an area of to an area of low solute concentration.

high solute concentration

Diffusion refers to the movement of from high to low concentration.

solutes

Osmosis is the diffusion of across a semipermeable membrane.

water

In a hypotonic solution, the cell will as water enters it.

swell

When diffusion reaches equilibrium, the net movement of molecules .

stops

Osmosis will create a difference in that is generally not seen in diffusion.

volume

The plasma membrane is found in cells.

all

Ribosomes are found in both ____ and __ cells.

prokaryotic, eukaryotic

The main function of glycolysis is to convert glucose into .

pyruvate

During cellular respiration, acetyl CoA enters the cycle.

Krebs (citric acid)

Oxygen is primarily used in the phase of cellular respiration.

electron transport chain

Fermentation aims to regenerate to keep glycolysis occurring.

NAD+

The output of ATP during glycolysis is per glucose molecule.

2

Total ATP production from one glucose molecule through aerobic respiration is roughly .

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