Huge Science Test Flashcards
(41 cards)
What’s in many scientists think during the 1500s
That spontaneous generation was true
What’s the difference between unicellular and multicellular organisms
Multicellular has many cells unicellular has one cell
Why was Francisco ready important and what did he believe and try to prove
Trying to prove that spontaneous generation is not true he did this by putting meat in two jars, the one not covered got flies but the one covered didn’t have any flies in there
What are the needs of living things
Energy water living space and stable internal conditions
What’s homeostasis
The maintenance of stable internal conditions despite changes in surroundings
What’s the difference between magnification and resolution
Magnification makes object figure resolution makes the object clear
What are the rules of dealing with microscopes
Hold them a microscope with two hands and don’t touch the lens
What Happened in 1590
Microscopes were invented
Who is Robert Hooke
One of the first people to study cells he studied a cork and found tiny cells and it
Who is Anton Van Leeuwenhoek
He looked in a pond and found unicellular organisms and he made his own lenses
Who is Matthias Scleiden
Concluded that all plants are made of cells
Who is Rudolph Virchow
Propose that new cells are formed from existing cells
What is the cell theory
All living things are composed of cells cells are the basic unit of structure and function in living things all cells are produced from other cells
What is chromatin
Strains that contain genetic material the instructions that direct cells activities
What is the difference between the nucleolus in the nuclear membrane
The nucleolus protects the inside of the cell in the nuclear membrane protects the outside of the cell
Where are ribosomes made
In the nucleous
What is chloroplast
Organelles capture energy from sunlight and use it to produce food
What is the cell wall
It protects the cell
What is a vacuole
Stores water food waste products and other materials
What is the cytoplasm
The area between the cell membrane and the nucleus
What is ribosome
Produces protein
No some facts about the bacteria cells
They are unicellular and have a cell wall and membrane and they also have no nucleus
What is the flagella
It acts as a motor to the bacteria
Difference between organic and inorganic compounds
Organic compounds contain carbon inorganic compounds do not contain carbon