Cell Structure
Which cell structure is flexible and allows things in and out of the cell?
Cell membrane
What structure do plant cells have to make the plants stand up straight and firm?
Cell wall
Small particles like oxygen and sodium move freely across the cell membrane from high to low concentration through what process?
Diffusion
Which organelle contains genetic information and gives instructions to the rest of the cell?
Nucleus
Which organelle do ribosomes attach to in order to produce the proteins that they export to other cells?
Which organelle is the “powerhouse” of the cell (makes all the energy from food)?
Mitochondria
When concentrations are balanced on both sides of a cell membrane, what is this state called?
Equilibrium
Cell membranes are constructed mainly of?
phospholipid bilayers
The nucleus provides instructions for building.
What are ribosomes building with those instructions?
Building Proteins
Which organelle digests waste, worn-out organelles, and other things that don't belong in the cell?
Lysosomes
Define selective permeability
Selecting what can and can't penetrate the cell membrane
What are Centrioles involved in?
Cell Division
Organelles do not just float around with no structure. What helps hold them in place or move them around within the cytoplasm?
Cytoskeleton
What process does chloroplast go through when converting light energy into chemical energy in plant cells?
Photosynthesis
What are the three different types of passive transport? What are the three types of passive transport?
Diffusion, Facilitated diffusion, and osmosis
ATP pump, ednocytosis, exocytosis
What does the mitochondria use to make energy?
Sugar
In the plasma membrane of animal cells there is a level of sodium and potassium that must be maintained. What is the active transport called that does this?
ATP pump
What structure has 2 layers and is made up of water attracted heads and water repelled tails that holds itself together?
Phospholipid Bilayer