Which organelles would you NOT find in a bacteria cell?
A nucleus, mitochondria or chloroplasts
What are the 3 parts of Cell Theory?
-All living things are composed of cells.
-Cells are the basic units of structure and function for living things.
-All cells come from pre-existing cells. Also, organisms grow by "adding on more cells" NOT by increasing the size of their cells.
Which 3 organelles are found only in plant cells? How do plants benefit from these structures?
Plant cells have a cell wall, chloroplasts and other specialized plastids, and a large central vacuole, which are not found within animal cells.
- The cell wall is a rigid covering that protects the cell, provides structural support, and gives shape to th
Identify the following cell parts on a diagram and be able to describe the function: cytoskeleton, cytoplasm, nucleus & nuclear envelope, ribosome, RER, SER, Golgi, vesicle, mitochondria, vacuole, lysosome, cell wall, cell membrane, and chloroplasts. (Als
-Nucleus: Regulates all cell activities
-Nuclear envelope: A two lipid bilayer membranes which in eukaryotic cells surrounds the nucleus, which encases the genetic material.
-Vesicle: A structure within or outside a cell, consisting of liquid or cytoplasm
What is the structure of the cell membrane? Can you draw it? Can you label the hydrophilic and hydrophobic parts? Why is it described as a fluid mosaic?
Hydrophilic heads
Hydrophobic tails
What does "selectively permeable" mean? What kinds of molecules pass easily through the phospholipid bilayer?
Some molecules, such as hydrocarbons, water and oxygen can cross the membrane. Many large molecules (such as glucose and other sugars) cannot.
Compare and contrast simple diffusion and facilitated diffusion.
In simple diffusion, the molecules can pass only in the direction of concentration gradient. In facilitated diffusion, the molecules can pass both in direction and opposite of the concentration gradient. Simple diffusion permits the passage of only small
What is osmosis? What happens to an animal cell in the 3 different solutions (hypotonic, isotonic, and hypertonic)? What happens to a plant cell in the 3 different solutions? Which solution do plants prefer? Which solution do animal cells prefer?
Hyper shink
Iso Norm
Hypo Bloat
Animals like iso, plants like hypo
What is active transport? How is it different from passive transport?
The movement of molecules across a membrane without the input of energy is known as passive transport. When energy (ATP) is needed, the movement is known as active transport. Active transport moves molecules against their concentration gradient, from an a
What is endocytosis? What is exocytosis? Give an example of each.
Endocytosis is the process of capturing a substance or particle from outside the cell by engulfing it with the cell membrane, and bringing it into the cell. Exocytosis describes the process of vesicles fusing with the plasma membrane and releasing their c