Active transport
Does active transport use energy?
YES
Does passive transport use energy?
NO
What is a solute?
The thing dissolved in the liquid
What is equilibrium?
When the concentration is the same on both sides of the cell membrane.
Cells of a multicellular organism become specialized for a specific job and all work together to maintain ____________.
Homeostasis
What are the 3 types of active transport we learned about?
Protein pumps
Endocytosis
Exocytosis
What are the 3 types of passive transport we learned about?
Diffusion
Facilitated Diffusion
Osmosis
What is a solvent?
The liquid a solute is dissolved in.
What is homeostasis?
What are the levels of organization in an organism?
Cell
Tissue
Organ
Organ System
What do protein pumps do?
Active transport proteins change shape, bind to the molecule, and then release it on the other side of the membrane.
In diffusion, particles move from areas of __________ concentration to areas of ___________ concentration.
high concentration to low concentration
What is a solution?
Solute + Solvent
Do unicellular organisms maintain homeostatis?
YES!
What is tissue?
A group of similar ells that performs a particular function together
What is exocytosis?
Moving large molecules or material out of the cell by using a vesicle.
What is facilitated diffusion?
Using protein carriers or channels to help cells diffuse into the cell, without using energy!
When two solutions have the same concentration, they are ____________.
Isotonic
What is a cell membrane made of?
A phospholipid bilayer
What is an organ?
An organ is composed on many groups of tissue working together.
What is endocytosis?
Moving large molecules or material into the cell by using a vesicle.
What is osmosis?
The diffusion of WATER through a selectively permeable membrane.
When one solution has a higher concentration than another, it is _______________.
Hypertonic
What does semipermeable mean?
Some things can pass through and some things cannot.
What is an organ system?
A group of organs working together for a specific function
What is the molecule that cells break down for energy called?
ATP (Adenosine Triphosphate)
What happens to a plant cell in a hypertonic solution?
What happens when you put a cell in a hypotonic solution?
It swells or expands
What is the difference between a eukaryote and a prokaryote
eukaryotes have nuclei and prokaryotes do not
Can the cells of human beings live on their own?
NO