Microscopes
what is a microscope?
A special tool that lets us see tiny things that are too small to see with our eyes alone.
What is the scientific term for a living thing?
An organism.
what is the cell membrane?
it controls what goes in and out of the cell
which organic compound is used for a for source of energy?
Carbohydrates
what does the term"semi-permeable membrane" mean?
that the cell membrane only allows certain things in and out.
who made the compound microscope?
The janssen brothers
what are the characteristics that make something alive?
Growth, development, stimulus,response,energy, cells, and adapt and reproduction
what does the mitochondria do?
it is the powerhouse do the cell
What is the monomer of nucleic acids?
Nucleotides
What is diffusion?
the movement of molecules from high concentration to low concentration.
why was Leeuwenhoek called the "father of microscopes?
He was the first person to see microorganisms with uis high quality lenses.
what is an example of response?
Taking your hand off of a hot stove
what is cytoplasm
it is the jelly like substance inside the cell
what are some examples of proteins?
Meat, beans , eggs ,dairy, nuts.
what is osmosis?
the movement of water with he concentration gradient
what is support from the microscope?
The arm and the base
what element is in all living things?
Carbon
what is a prokaryote cell
A cell that does not have a nucleus
Lipids re used for long term energy.
True
what is active transport and passive transport?
active transport is the movement of thing in and out of the cell against the concentration gradient with the ue of energy. passive transport is is the movement of things in and out of the cell with the concentration gradient without the use of energy.
If a microscope has 4x power and 40x power and with objectives with 10x power what is the total magnification?
40x and 400x
what is the cell theory?
1- all living things are composed of one or more cells. 2- the cell is the basic unit of life 3- all cells are produced from another cell
what does ER do in the cell
Has passage ways to carry proteins and other materials from one part of a cell to another
why is water important?
at least 50% of the human body consists of water,we need it to survive, involved in most of our chemical reactions
what is endocytosis and exocytosis.
endocytosis is when the cell take sin materials and exocytosis is when it takes it out.