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