Topic 1
What do you think would happen if a cell was not able to exchange different materials within its environment?
the cell would die off
What process does the statement "Cows Will Eat Grass Outside" refer to?
Photosynthesis
What is an example of an organism maintaining homeostasis?
Going for a walk
What are the THREE reactants (go into plant) for photosynthesis?
H2O, CO2, Light energy
What are the THREE products (what comes out of) cellular respiration?
b. CO2 (carbon dioxide), H2O (water), Energy (in the form of ATP)
What is the basic unit of life?
Cell
Which instrument did scientists use to discover cells?
microscope
What organelles are not found in animal cells?
Chloroplast and cell wall
The organelle where cellular respiration takes place.
mitochondria
What is one of the Cell Theory statements?
Cells are the basic unit of life.
All living things come have cells.
Cells come from pre-existing cells.
What are the levels of organization in the correct order?
atoms ----> molecules ----> cells ----> tissues ----> organs ----> organ systems ----> organism
Scientific theories can be changed or tweaked to support newer evidence. Which of the following could end up changing the Cell Theory?
Scientists find life on Venus that does not have cells.
What cell organelle acts as the power plant, giving energy to the cell?
mitochondria
Once cellular respiration is finished, what must the cell do to return to a state of homeostasis?
Remove the waste
What is a scientific theory?
Scientific theories explain why something happens based on well-supported observations of nature.
Does not have a nucleus
DNA found in cytoplasm
non-membrane organelles
Bacteria
What type of cell does this describe?
prokaryotic cells
Looking in a microscope, you see cells that have circular shapes. What type of cells are you probably viewing?
animal cell
Where does cellular respiration occur?
plants and animals
Looking in a microscope, you see cells that have rectangular shapes and a green color. What type of cells are you probably viewing?
plant cell
Has a nucleus
DNA found in nucleus
Complex and specialized organelles
Plant/animal cells
What type of cell does this describe?
eukaryotic cell
What are the TWO reactants (what goes into the mitochondria) that go into cellular respiration?
Glucose, O2 (oxygen)
What are the TWO products of photosynthesis?
Glucose, O2 (oxygen)
What organelle is responsible for storing water, waste and nutrients?
Vacuole
Where does photosynthesis occur?
plants only
What does homeostasis mean for living organisms?
internal environment stays the same when external changes