the smallest units that can carry out the activities of life
100
What does DNA contain?
information about how a organism will grow and develop
100
Describe what happens in Interphase.
DNA is copied and chromatin network is formed
100
Where does mitosis begin?
the nucleus
100
What does osmosis mean?
The movement of water across the cell membrane
200
Because of the development of the microscope we now have what?
Cell Theory
200
In what structure of a plant cell does the cell convert sunlight into food?
chloroplasts
200
What happens in Prophase?
Double sided chromosomes are formed. Nuclear envelope and nucleolus disperse.
200
When is mitosis complete?
when a new membrane forms around each nucleus
200
What does diffusion mean?
the movement of a substance from an area of high concentration to an area of lower concentration.
300
Why is it a good thing that cells are small and not large?
Materials can move more quickly in a small cell.
300
What do lysosomes do?
recycle worn-out cell parts
300
What happens in Metaphase?
Chromosomes line up single file at the equator.
300
What are the initials to remember the 5 stages of mitosis?
IPMAT
300
Draw what diffusion might look like.
Drawn on the board and the teacher will correct it.
400
List the three things a cell must do to stay alive.
obtain energy, remove waste products, and reproduce
400
Why would drinking plenty of water help the cells?
cells are mostly water. Substances the cells need are dissolved in water. The water travels across the cell membrane. If the cell does not have enough water, the cytoplasm will shrink
400
What happens in Anaphase?
Each double sided chromosomes split to form 2 single sided chromosomes
400
What is the definition of mitosis?
making copies of cells
400
Draw a cell during interphase and label it.
Drawn on board and teacher corrects it
500
What is the Cell Theory?
1) all living things are made of one or more cells 2) cells are the basic unit of living things 3) all cells come from existing cells
500
Why would more mitochondria be found in the muscle or brain cells than in other places?
Mitochondria convert food into energy cells can use. Muscle and brain cells need MORE energy therefore they need more mitochondria.
500
What happens in Telophase
Two new cells form with each having 2 single sided chromosomes.
500
Draw the 5 stages of mitosis (simple drawings)
It is drawn on the board. The teacher will now correct it if need be.