Biology Cell Transport Study Guide
The movement of molecules against a concentration gradient
active transport
The process in which the movement of materials across a membrane requires energy
active transport
from low concentration to high concentration
active transport
The energy pathway that uses energy to build uplarger molecules from smaller ones is known as
anabolic
All of the following are types of passive transport except -diffusion -exocytosis -facilitated diffusion -osmosis
exocytosis
Cells diffuse substances across the membrane through protein channels in the process of
facilitated diffusion
A solution that has greater concentration than a cell,.is a _______ solution
hypertonic
During phagocytosis, what kind of material is transported into the cell?
solid
When placed in a hypotonic solution, a cell will
swell
Energy is defined as
the ability to do work
The compound in which energy is released through the process of cellular respiration
ATP
What provides the energy that cells need to move materials against the concentration gradient?
ATP
What does active transport require?
It requires energy
TRUE or FALSE. Active transport requires energy
TRUE
What is the definition of selective permeability?
The ability of the cell membrane to allow some things to pass through while preventing other things from passing through.
In the given scenario, what will happen to the organism?: Salt is poured onto eggplant
Water will move out of the eggplant cells and the cell will shrink
A substance that moves by passive transport tends to move
away from the area where it is more concentrated
This cell structure helps organisms maintain homeostasis by controlling what substances may enter or leave cells
cell membrane
The process that moves any material from high concentration to low concentration
diffusion
What process moves particles from high concentration to low concentration?
diffusion
Give an example of active transport
endocytosis
Passive transport requires no
energy
particles too large to enter the membrane; need help from protein channels; no energy is required
facilitated diffusion
Large molecules and ions can easily pass through the cell membrane without any help (true or false)
false - they need a protein channel
Which term means "water-loving"?
hydrophilic
If the concentration of solutes are equal on both sides of the cell, the solution is
isotonic
What is the role of exocytosis in cell transport?
it moves substances out of the cell
How does a cell membrane help a cell to maintain homeostasis?
it regulates the movement of molecules across the membrane
What will happen to a cell if it is placed in a hypertonic solution?
it will shrink
Osmosis is the movement of water across a
membrane
The concentration of water is higher in the soil than in plant root cells. Water moves into the roots of plant cells by
osmosis
The movement of water molecules across a selectively permeable membrane
osmosis
The process in which liquids from the surrounding area are taken into the cell is called
pinocytosis
Which of the following is not an example of passive transport? diffusion, pinocytotis, facilitated diffusion, or osmosis
pinocytosis
An animal cell placed in a hypertonic (salty) solution will
shrink
Due to the higher concentration of oxygen in the air than your blood, oxygen goes from the lungs into the red blood cells by....
simple diffusion
In the given scenario, what will happen?: An egg is placed in pure water for 48 hours.
the egg will gain water and swell.
What kind of material is transported through osmosis?
water
An animal cell that is surrounded by fresh water will burst because the osmotic pressure causes
water to move out of the cell
