Movement across the cell membrane that does not require energy is call (active/passive) transport.
The difference in the concentration of a substance across a space is called a concentration(equilibrium/gradient)
If there is a concentration gradient, substances will move from an area of high concentration to an area of (equal/low) concentration.
The cell membrane is (selectively permeable/impermeable).
(Equilibrium/Diffusion) is the simplest type of passive transport
The diffusion of water through a selectively permeable membrane is called (osmosis/diffusion)
The direction of water movement across the cell membrane depends on the concentration of free water (molecules/solutions)
A solution that causes a cell to swell is called a (hypertonic/hypotonic) solution.
Organelles that collect excess water inside the cell and force water out are called (diffusion organelles/contractile vacuoles)
The process of taking material into the cell by in-folding the cell membrane is called (endocytosis/exocytosis)
In (facilitated/molecular) diffusion, membrane proteins help molecules across the membrane.
In diffusion, molecules (spread out/condense)
the cell membrane
The lipid bilayer describes (a type of transport/the cell membrane)
Facilitated diffusion moves substances down their concentration gradient (with/without) using the cell's energy
In an isotonic solutions how are the arrows?
In an hypotonic solution where are the arrows pointing?
In an Hypertonic solution where are the arrows pointing?
10% salt and 10% salt solution
2% salt and 10% salt
30% salt and 10% salt
function of nucleus
Contains genetic material, controls the cell
purpose of plasma or cell membrane
Protects cell from its surroundings
keeps everything in place in the cell
cytoplasm and plasma membrane
Which organelles are present in the diagrams of all three types of cells?
Plant and animal cells
Which cell types contain a nucleus
Vacuole, cell wall, chloroplasts
Which organelles were present in the Elodea cell diagram but absent in the cheek cell diagram
plant cells are long. Plant cells have chloroplast, the cell wall and vacuoles. The Animal Cell doesn't have any of those.
What are the differences between plant cells and animal cells
Plasma membrane(cell membrane)
Organelle Description: The unit membrane that encloses the entire cell.
Plasma membrane(cell membrane)
Organelle Function: Protects cell from surroundings
Endoplasmic Reticulum (ER)
Organelle Function: Fix cells if needed, help assemble proteins
Organelle Function: Prepares proteins for transport to other parts of the cell
Organelle Function: Store bubbles containing food or waste.
Organelle Function: Turns food into energy, cellular respiration
Organelle Function: Protein builders, they connect one amino acid at a time and build chains
Organelle Function: Absorb sunlight and use water and carbon dioxide to produce food.
Organelle Function: Instructions to make molecules called proteins
Organelle Function: Keep DNA tightly wrapped around spool-like proteins
Organelle Function: Used in protection and structure
Organelle Description: System of channels, sacs, and tubes throughout the cytoplasm; continuous with plasma and nuclear membrane
Organelle Description: Parallel layers of flattened sacs (like a stack of pancakes) with numerous small vesicles around the stack
Organelle Description: Membrane enclosed, fluid filled sacs
Organelle Description: Rodlike organelles bound by two unit membranes, the inner one of which has inward folds called cristae
Organelle Description: Small protein/RNA particles located on outer surface of ER and free in cytoplasm
Organelle Description: Contain chlorophyll; surrounded by a double unit membrane
Organelle Description: Basic units of heredity; composed of long molecules of DNA
Organelle Description: Elongate thread-like bodies clearly visible only when the cell divides; composed of protein, DNA
Organelle Description: Composed of cellulose, a complex carbohydrate
You look into the microscope through this part
Light passes from the objective lens to the eyepiece through this part of the microscope
The objective lenses are mounted in this part of the microscope
There may be two or three of these mounted on the nosepiece. Each one magnifies a different power.
This part supports the entire upper portion of the microscope
coarse adjustment knob
You begin your focusing with this part of the microscope
fine adjustment knob
Once the object that you would like to view comes into focus, you use this to fine tune the image
The flat place under the objective lenses where you place the slide for viewing
These two things keep the slide from moving around on the stage
This is a thin piece of glass where you place your specimen
The opening in the center of the stage that allows light through so you can easily see the object on the slide
You can move this disk under the stage and control the amount of light that comes up through the aperature
mirror or lamp
This provides light so that it is easier to see the object that you are viewing
This is the support for the microscope that holds it up
The mirror or lamp is located between these two things