What is identified by item 1 on the cell membrane?
phospholipid
cholesterol
carbohydrate
protein
What is identified by item 2 on the cell membrane?
protein
cholesterol
phospholipid
carbohydrate
What is identified by item 4 on the cell membrane?
phospholipid
carbohydrate
protein
cholesterol
The cell membrane is responsible for maintaining _____________, a stable internal environment
homeostasis
metabolism
energy
cytoplasm
Property of the cell membrane alllowing some materials to pass through while keeping others out
semi-passive
selective permeability
osmosis
diffusion
Which type of transport requires energy to move substances across the cell membrane?
diffusion
active transport
passive transport
osmosis
Nonpolar molecules (ex: CO2 & O2) move across the lipid bilayer down the concentration gradient
facilitated diffusion
diffusion
osmosis
active transport
Large molecules such as glucose move down the concentration gradient with the help of proteins
osmosis
facilitated diffusion
active transport
exocytosis
Diffusion of water molecules through the cell membrane down (with) the concentration gradient
active transport
osmosis
facilitated diffusion
exocytosis
Movement of substances against the concentration gradient; requires energy
passive transport
diffusion
active transport
osmosis
Process by which a cell surrounds and takes in material from its environment
osmosis
endocytosis
endosymbiosis
exocytosis
Process by which a cell surrounds and removes materials from inside the cell
diffusion
osmosis
endocytosis
exocytosis
Movement of substances across the cell membrane from high concentration to low concentration
endocytosis
exocytosis
diffusion
active transport
Which molecule aids in moving substances across the cell membrane, ex. facilated transport?
protein
carbohydrate
cholesterol
lipid
Which molecule keeps phospholipids from sticking to each other?
lipid
carbohydrate
cholesterol
protein
Which molecule aids transmitting signals from outside to inside the cell?
protein
lipid
cholesterol
carbohydrate
