Question

A cell membrane is ...................which means that it allows only

certain substances to enter or leave a cell



semipermeable



permeable

2
Passive transport is the movement of substances through a cell membrane by using energy


true
false
3
Diffusion is the movement of substances from an area of low conc. to an area of high concentration


true
false
4
diffusion continues till equilibrium


true
false
5
...............is the diffusion of water molecules only through a membrane



facilitated diffusion



Osmosis

6
Transport proteins that carry large molecules, such as sugar molecules, through a cell membrane ..........



Carrier proteins



channel proteins

7
Transport proteins that form pores through a cell membrane



channel proteins



Carrier Proteins

8
When molecules pass through a cell membrane using special proteins



facilitated diffusion



Osmosis

9
facilitated diffusion needs energy


true
false
10
membranes are boundaries between cells and organelles


true
false

Answer 1

semi-permeable

Step-by-step explanation:

passive transport is the movement of substances along the concentration gradient and no energy is utilized in it