biology - is the study of life and living organisms
all living organisms share several key CHARATERISTICS (7) - order
adapt/ develop
homeostasis
respond to the environment
process energy
reproduce
a cell - is the smallest collection of matter that can be alive. it is a fundamental unit of
life
microscope - most cells are too small to see without additional magnification. to observe
them, we use a ____
0.1mm - the unaided eye can see objects as small as ?
membrane - which surrounds the cell, allows for the passage of nutrients into and waste
out of the cell
Diffusion - A cell relies in large part on _______of molecules throughout its interior for
proper function
volume
surface area - As a cell increases in size, its _____ grows faster than its _____
small cells - ____ have a greater surface area relative to volume allowing for effective
metabolism.
SA - ___ increases by a factor of n^2
Volume - increases by a factor of n^3
larger organisms - ___ have more cells rather than larger cells
16th century - first compound microscope discoveries
Robert Hooke - examined a thin section of cork and the pores he observed cells (dead
plant matter)
Antoine van Leeuwenhoek - examined a drop of pond water and reported the presence
of 'animalcules'
3 points of the cell theory - 1. All living things are made of one or more cells
2. cells are the basic structural unit of life
3. all life comes from pre-existing cells.
all living organisms share several key CHARATERISTICS (7) - order
adapt/ develop
homeostasis
respond to the environment
process energy
reproduce
a cell - is the smallest collection of matter that can be alive. it is a fundamental unit of
life
microscope - most cells are too small to see without additional magnification. to observe
them, we use a ____
0.1mm - the unaided eye can see objects as small as ?
membrane - which surrounds the cell, allows for the passage of nutrients into and waste
out of the cell
Diffusion - A cell relies in large part on _______of molecules throughout its interior for
proper function
volume
surface area - As a cell increases in size, its _____ grows faster than its _____
small cells - ____ have a greater surface area relative to volume allowing for effective
metabolism.
SA - ___ increases by a factor of n^2
Volume - increases by a factor of n^3
larger organisms - ___ have more cells rather than larger cells
16th century - first compound microscope discoveries
Robert Hooke - examined a thin section of cork and the pores he observed cells (dead
plant matter)
Antoine van Leeuwenhoek - examined a drop of pond water and reported the presence
of 'animalcules'
3 points of the cell theory - 1. All living things are made of one or more cells
2. cells are the basic structural unit of life
3. all life comes from pre-existing cells.
