Unit B: Cells and Systems Flashcards
exams
Define what organisms mean?
All living things
What are the six characteristics of living things?
1: They need energy
2: Grow and develop
3: Respond to the environment
4: Reproduce
5: Have adaptations
6: Environment
What’s the difference between structure and function?
structures are the shape for a specific function of task
functions are how the structures work
Can you name all 8 body systems?
Circulatory, Respiratory, Digestive, Nervous, Excretory, Skeletal, Muscular, Integumentary
What are the 2 types of cells?
Unicellular and Multicellular
What are unicellular cells?
An organism made up of one cell
What are multicellular cells?
An organism made up of multiple cells
What is the function of a microscope?
A telescope device that can look at something really close
What is an amoeba?
Unicellular cells that live in water
What are pseudopods?
a “foot-like- structure to make amoeba’s move
What is the cell membrane?
Cell membranes are semipermeable and allow only some substances such as water and oxygen to pass through.
What is diffusion?
Particles naturally want to move from an area of high concentration to an area of low concentration
What is osmosis?
Water particles move from the HIGHER concentrated water to the LOWER concentrated water
Cells in multicellular organisms develop and reproduce through ____ ______
binary fission
Cells can undergo certain functions because they are ______
specialized