Organelle Functions
What is the function of the nucleus?
The control center of the cell, directing cell activities.
What organelle do animal cells have that plant cells don't?
Lysosomes
What is the function of the ribosomes?
Factories to produce proteins
True or false: The cell membrane is selectively permeable.
True
What did Anton van Leeuwenhoek look at?
Rain water, teeth scrapings, and pond water
What are the functions of the cell membrane?
1. To protect the cell.
2. To regulate what enters and exits.
What are the differences in shapes of animal and plant cells?
1. Animal cells are more round and fluid.
2. Plant cells are more rigid.
What are cells made of?
Organelles
What are the two types of passive transport?
1. Diffusion
2. Osmosis
What are the two types of cells?
1. Prokaryotic
2. Eukaryotic
What is function of cytoskeleton?
1. Reinforces shape
2. Helps with movement
What are the three organelles that plant cells have and animal cells don't?
1. Chloroplast
2. Central vacuole
3. Cell wall
What is the nucleus made of?
1. Nuclear Envelope
2. Nucleolus
3. Chromatin
What are two ways in which cells can move things by active transport?
1. Engulfing particles
2. Shuttling proteins
In which way do molecules move across the membrane in diffusion.
From high to low concentration
What are the two functions of the ER?
1. Helps form proteins and other materials.
2. Carries materials throughout the cells.
What is the definition of a cell?
The simplest collection of matter that can be alive
What are the differences between the two types of ER?
1. The rough ER has ribosomes on the membrane.
2. The smooth ER does not have ribosomes on the membrane.
What are two of the three types of osmotic solutions and their definitions?
1. Isotonic- Equal concentrations of solutes, inside and outside the cell
2. Hypertonic- Higher solute concentrations outside the cell than inside the cell
3. Hypotonic- Higher solute concentrations inside the cell than outside the cell
What are the three parts of the cell theory?
1. All living things are composed of cells.
2. Cells are the basic units of structure and function in living things.
3. All cells are produced from other cells.
What is the functions of the Golgi apparatus?
1. Receives newly made materials and proteins from the ER.
2. Packages and distributes materials to other parts of the cell
3. Also can ship things out of the cell
In which way does water molecules move across the membrane?
From low solute concentration to high solute concentration.
What is the function of the chloroplast?
Convert the energy from sunlight into food for the plant.
What is the difference between active and passive transport?
Active transport requires cellular energy, passive transport does not.
What are the 7 characteristics of life?
Homeostasis
Metabolism
Growth
Reproduction
Response to Stimuli
Adapt
Made of one or more cells