In a cell
What are the structures inside a cell?
Organelles
A group of cells working together in an organ.
tissue
All cells come from:
Pre-existing cells
Cells and organisms try to keep life systems balanced through a process called
Homeostasis
What organelle is a large central one in a plant and small multiple ones in an animal
vacuole
What scientist discovered and named cells by looking at cork under a microscope?
Robert Hooke
Which organelle contains the DNA of the organism?
The Nucleus
Organs such as the stomach, small intestines, and large intestines working together form a:
organ system
(in this case the digestive system)
All living things can be unicellular or:
multi-cellular
A warm blooded animal such as a bird or squirrel will have what happen to its temperature if the outside temp. drops?
It will stay the same due to homeostasis
What do chloroplasts do?
Use sunlight for photosynthesis
An elephant and a mouse would produce energy in their cells very similar because why?
They both use mitochondria to produce energy
This organelle produces the energy for the cell
The mitochondria
The organization level below tissue is:
cell
Cells are the basic unit of _________ and _________ of life
structure, function
This organelle allows materials to pass in and out of a cell to keep homeostasis
cell membrane
This provides structure and rigidity for the plant cell
Cell Wall
This organelle is the "brain" of the cell and controls what happens
Nucleus
This organelle holds water, nutrients, and waste in the cell.
The vacuole
Layers of tissue working together to perform a function is an:
organ
Cell theory has _____ basic principles
3
When a cell or organism does not have homeostasis what can happen?
get sick or die
Name 3 differences between plant and animal cells
large central vacuole in plants
Cell Wall
Chloroplasts
Plant cells have a larger vacuole because:
Plants need to store more food and water than animals
This organelle packages proteins to ship out
Golgi Apparatus
The organization level directly below the organism
organ system
The cell is the basic ________ of _________
unit, life
Name 3 needs of cells and organisms that are related to homeostasis
food, water, temperature, PH, waste removal, etc.
This cell can make its own food
Plant cell
A pine tree growing from a dropped pine cone (seeds of pine trees) is an example of what?
cells coming from pre-existing cells