Characteristics of Life
Name the six characteristics of life
- organized/made of cells
- grow and develop
- reproduce
- respond to stimuli
- maintain homeostasis
- use energy
Give an example of an internal stimuli and an example of an external stimuli.
internal- feeling hungry/ thirsty
external- squinting/ sunburn/ tan
Which organelle produces ribosomes?
Nucelolus
Name two things found in plant cells but not animal cells
cell wall & chloroplast
Describe the organization of multicellular organisms from most basic to most complex.
2. Tissues (cells working together)
3. Organs (tissues working together)
4. Systems (organs working together)
What is a change an organism undergoes during its lifetime called?
development
Give an example of maintaining homeostasis.
regulating body temperature. sweating/ cold chills
controls all cell functions
nucleus
the fluid part of the cell that helps keep organelles in place
cytoplasm
Where do plants get their energy from?
The sun
what are the two types of stimuli?
internal/ external
What is it called when an organism creates offspring?
reproduce/ reproduction
What does the Golgi Apparatus do?
collects, process, and packages proteins. Post office
digests and gets rid of cell waste
How do multicellular organisms grow?
As the number of cells increase.
name & describe the two types of reproduction
asexual- one cells divides into two
sexual- need a mate. two cells become one
Give an example of a development.
What does the endoplasmic reticulum do?
Moves proteins in the cell.
What do the chloroplasts do?
Where photosynthesis takes place.
What do centrioles do?
Help with cell division.
What is the most basic unit of life?
The cell
How do unicellular organisms grow?
as the cell gets bigger/ increases in size
the outer part of the cell that controls what goes in and out.
cell membrane
What does the vacuole do?
Prokaryotic & Eukaryotic
(Plant and animal cells are both Eukaryotic)