viruses and vaccine
what is a virus?
strand of hereditary material surrounded by protein coating
true or false in the scientific method you must have a hypothesis
true
true or false cell is the biggest unit of living things
false
how many ER are there and what are their functions
2. rough er makes proteins
smooth er - cellular substances, lipids,store energy
what are the cell theories?
1 cells come from other cells
2 cells are the basic unit of life
3 organisms are made or 1 or more cells
what is a active and latent virus?
active- immediately makes new cells
latent-stores itself in the DNA waiting for activation
how do you determine the total magnification of a microscope?
what does magnify mean
eye peice and objective lenses
make (something) appear larger than it is, especially with a lens or microscope:
what is the difference between the prokaryotic and eukaryotic cell ?
prokaryotic has no membrane bound structures. and no other organelles
eukaryotic has membrane bound structures and other organelles
what are the jobs of the Golgi and the lysosomes?
golgi- sorts packages and send proteins to vesicles
lysosomes - digests excess or worn out cell parts, food particles and invading viruses or bacteria
what is the diffrence btwn theories and laws
theory- explanation of things or events based on scientific knowledge that is the result of many observations and experiments. not a a guess or some ones opinion. many scientists repeat the experiment if the results always support the hypothesis it can be called a theory.
laws -statement abt how things work in nature that seems to always be true less likely to change
what do vaccines do? what is it made from?
prevent diseases. made from weakened virus that cant cause diseases any more
what is the controlled group?
the controlled group is the standard group. the control group will be compared to the experimental group
what is the levels of organisms in a human
cells tissues organ organ system organism
what is the job of the nucleus and what does it contain
directs all cell activity . contains hereditary material made of DNA
what is biogenesis and spontaneous gen
biogenesis-the idea that life comes from life
spontaneous gen- the idea that life comes from non living things
what are interferons?
proteins that are rapidly produced by virus infected cells and move to non infected cells
what is a simple microscope? what is a compound light microscope?
simple microscope- only has one lenses
compound light microscope-2 sets of lenses eye piece and objective lenses.
how do living things grow and develope?
growth of multi cells by number
growth of single cells by size
what is the job of the ribosomes and cytoplasm?
ribosomes- makes proteins
cytoplasm-The cytoplasm is the gel-like substance where important chemical reactions occur
what is homeostasis
an organisms ability to keep proper condition no matter what is going on outside
how do virus multiply?
virus make copies of themselves by using a host cell
what are all the parts to the scientific method?
what don't animal cells have? and what is there job?
cell wall- protects the cell and gives it shape
chloroplast-photosynthesis so plants make themseleves glucose.
central vacuole- temporarily stores material
what is the job of the cell membrane and mitochondrion
cell membrane- separates the interior of the cell from the outside environment
mitochondrion- organelle where energy is released from breaking down food into carbon dioxide and water.
what is phonology?
the evolution history of an organism or how it has changed overtime.