Biology unit 1 Flashcards
What advances in technology made the discovery of cells possible?
The microscope
What is the function of the nucleus?
Store Data
Which organelle breaks down organelles that are no longer useful?
Lysome
Which structure makes proteins using the coded instructions that come from the nucleus?
Ribosomes
Which organelles are involved in energy conversion?
mitochondria and chloroplasts
Which organelle would you expect to find in plant cells but not animal cells?
chloroplast
Unlike the cell membrane the cell wall is…
a rigid structure
Which of the following structures serves as the cell’s boundary from its environment
cell membrain
What is a function of the cell membrain
to keep toxic substances out of the cell
Why does diffusion occur?
Molecules constantly move and colide with each other
The diffution of water accros a selective permible membrain is called?
Osmosis
An animal cell that is surrounded by fresh water will burst because the osmotic pressure causes what?
Water to move into the cell
Which organ maintain homeostasis by regulating the amount of sugar in the blood
liver
Which are the components of the circulatory system
blood, blood vessels, and heart
Scientific Attitudes
Curisity
skeptism
open minded
creativity
