Cell Organelles
Chromosomes/Interphase
Homeostasis
Cellular Transport
Mitosis
100
What does the nucleus do?
Protects your DNA
100
What is a chromosome?
one long continuous thread of DNA that consists of many genes
100
What is homeostasis?
A stable, internal environment.
100
The type of transport that requires energy.
Active transport
100
What is mitosis?
Cellular division part of the cell cycle.
200
What do the ribosomes do?
Make proteins of course!
200
Where are telomeres located?
Found on the ends of chromosomes
200
How does the cell membrane help to maintain homeostasis?
It is selectively permeable meaning it is picky about what goes in and out of the cell.
200
What are the three types of passive transport?
Diffusion, facilitated diffusion, and osmosis.
200
What are daughter cells?
Cells that are identical!!! Produced during mitosis.
300
What does the Golgi apparatus do?
Like the postal worker. Receives (from rough ER), packages, and ships proteins where they need to go.
300
What happens during interphase?
- replication of DNA
- cell growth
300
What is the difference between endocytosis and exocytosis?
Endocytosis: materials move into the cell
Exocytosis: materials exit the cell
300
If materials are moving from an area of high concentration to areas of low concentration, it is what type of transport?
Passive
300
What are the stages within mitosis?
Prophase
Metaphase
Anaphase
Telophase
400
What is located in the little spaceship (vesicle) sent out by the rough ER?
Proteins!
400
True or false: The cell cycle spends most of its time in interphase.
True
400
What is negative feedback?
A way for the body to return quickly back to homeostasis.
400
If a cell shrivels, what type of solution is it in?
Hypertonic
400
What happens at each stage of mitosis?
Prophase: chromosomes condense and envelope breaks
Metaphase: chromosomes line up in center
Anaphase: sister chromatids pulled apart
Telophase: envelope reforms
500
Which cell organelle do you think is the most important and why?
Any cell organelle works as long as you support your choice with evidence!
500
Some people say that interphase is the resting phase of the cell. Is this accurate? Why or why not?
Resting in terms of not dividing, yes.
Resting in terms of doing nothing, no. The cell grows, duplication of organelles, and replicates DNA in this phase.
500
Is negative feedback a bad thing?
NO! Negative feedback returns the body straight back to homeostasis so the internal balance can be maintained.
500
What types of materials are moved across the cell membrane for each of the six types of transport? (provide the name of transport and the substance it moves!)
Simple diffusion: oxygen and carbon dioxide
Osmosis: water
Facilitated diffusion: glucose
Molecular pump: ions (sodium or potassium)
Endocytosis: bacteria
Exocytosis: neurotransmitters
500
Draw what happens at each phase of mitosis.
