what is the latin word of lens

roman philosopher who described "letters could be magnified by a ball of crystal" glass globe of water to magnify text in order to read books

made the first compound microscope. it was believed that he had helped from his father hans janssen

a british scientist examine the structure of thinly sliced cork under the microscope and describes small rectangular compartment which he called cellulae (latin word for small chambers/rooms reported in his publication micrographia)

dutch shoe keeper he made his own microscope to examine the fabric he is buying. examines pond water and so living organisms ( protozoa and fungi) which he called animalcules (small animals)

german botanist determine that all living plants tissue was composed of cells

german zoologist came to a similar conclusion to animals

who concluded that "all cells arise from cells" in that the cell was the basic unit of life

when he tried to prove the idea of cell division

three postulates of cell theory

are predominantly single celled organisms classified in the domains with bacteria and archaea

much larger than prokaryotic cells. organisms whose cells have a nucleus

prokaryotes and eukaryotes both have these

dna bundles together in a region called

archaea in salty environment

archaea that produce methane

archaea that lives in extremely hot environment

a central region of the cell that contains its dna

are responsible for protein synthesis. small non membrane bound organelles

provide structure and protection from the outside environment

also known as the plasma membrane that separates the cell from the outside environment

some bacteria have a layer of carbohydrates that surrounds the cell wall called. helps the bacterium to attach to surfaces

are rod shaped structure involved in multiple roles including attachment and dna transfer

are tin tail like structures that assist in movement

are thin hair like structures that help with cellular attachment

are internal structures responsible for a variety of functions such as energy production

is the gel like materials inside the cell membrane and outside the nucleus

contains small microfilaments and larger microtubules

the most stable and least soluble and provides tensile strength

are small hollow tubes

unspecified role in cell division in animal cells. organizing center of microtubules

cell organelle that houses dna and direct synthesis of ribosomes and protein

the powerhouse of the cell

membrane free organelles found inside the nucleus that contains fibrils and granules

are group of organelles and membranes in eukaryotic cells that works together to change,package

is a folded membrane that move materials around in the cells

two types of endoplasmic reticulum

modifies, packages and distribute molecules made at one location

it has hydrolytic enzymes- digest food, recycle old components of the cell

these are small round organelles enclosed in a single membrane

these are membranes bound socks that function in storage and transport

appendages responsible for locomotion of cells

used to move substances outside from human cells

contains a green pigment called chlorophyll

vacuole store water food pigments waste or other materials

composed of amino acids and sugar

nirtogen- containing polysaccharide similar to cellulose which serve as structural support

membrane enclosing the nucleus. protein lined pores

dna plus associated proteins

store pigments