What are the four tenets of the cell theory?
Every living organism consists of one or more cells
Cells arise spontaneously from abiotic factors.
All living cells arise by division of preexisting cells.
The cell is the smallest unit of life.
Cells pass genetic information to their offspring when they divide.
Atoms contain cells so they are considered biotic.
Cellular membranes are made up of which type of molecule?
Proteins
Nucleic Acids
Phospholipids
Enzymes
Most cells are very small because their cell size is limited by the surface-to-volume ratio.
What type of microscopy image is shown?
TEM
SEM
Light Microscopy
Cell membranes are called a fluid mosaic because... (check all that apply
They are made of many different types of molecules
They are a liquid
They have a fluid like motion
They are multi-tiled
Semi-permeable means that any material can pass into and out of a cell.
Which type of cell lacks a nucleus?
Prokaryotic cell
Eukaryotic cell
If you found a cell that was very small what type of cell would you expect it to be? Would you expect it to have a nucleus?
Prokaryote; Yes
Prokaryote; No
Eukaryote; Yes
Eukaryote; No
What is an organelle?
Small compartments that carries out the cells metabolic functions
Small organs that give the cell energy
Small compartments that can eliminate wastes from a cell
#7 label on the cell is....
Vesicle
Nucleus
Rough Endoplasmic Reticulum
Golgi Apparatus
Smooth Endoplasmic Reticulum
Nucleolus
#3 label on the cell is....
#5 label on the cell is....
The net movement of molecules or ions into an adjoining region where they are not as concentrated.
Gradient
Concentration
Diffusion
The gradual change in the concentration of solutes between two regions.
A dissolved substance
Solute
Solvent
When the substance’s concentration is uniform through all regions.
Equilibrium
Liquid that can dissolve other substances
Amount of solute in a given amount of solvent
Solution
If an amoeba (uni-cellular, no cell wall, typically found in ponds) was placed in ocean water, what might happen to it?
Swell
Shrink
If you placed red blood cells in distilled water, what might happen to them?
How could you use osmosis to revive some droopy carrot sticks?
Repot them in fresh soil
Water them
Fertilize them with salt
Passive transport requires the use of ATP to move things from low concentrations to high concentrations.
Active Transport requires the use of ATP in order to move ions ______________ the concentration gradient.
down
against
The calcium and the sodium-potassium pumps are examples of...
Facilitated diffusion
Osmosis
Active Trasnport
Passive Transport
#1 label is the...... structure
Chloroplast
Cell Wall
Central vacuole
#4 label is the ........ structure
Central Vacuole
Label the microscope: #1
Arm
Ocular lens
Objective lens
Diaphragm
Label the microscope: #9
Condensor
Nosepiece
Stage
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