click below
click below
Normal Size Small Size show me how
ajh science test 10
Question | Answer |
---|---|
what is an outer cover of a cell? | cell membrane |
what is the gelatinlike substance in a cell called? | cytoplasm |
the same size and shape of a cell is related to its what? | function or job |
what are the two types of cells? | prokaryotic and eukaryotic |
what kind of cell that lacks membrane-bound internal structres? | prokaryotic |
what kind of cell contains membrane-bound internal structures? | eukaryotic |
what grows, changes shape, and protects the cell of plants, algae, fungi, and most bacteria? | cell wall |
what is a protective layer around all cells? | cell membrane |
for cells that have a cell wall what is inside the cell wall? | cell membrane |
what allows food and oxygen into the cell amd waste producst out of the cell? | cell membrane |
what is a scaffolding-like structure in cytoplasm which products out ogf the cell? | cytoskeleton |
in the cytoplasm, eukaryotic cells have what which helps cells keep its shape? | organelles |
what is a green organelle in a plant cell that males food? | chloroplast |
oranelles that release energy from food are called what? | mitachondria |
what makes protein for ca cells activity? | ribosomes |
what is a series of smooth or rough membranes that move materials around in a cell? | endoplasmic reticulum or E.R. |
what moves substances out of a cell or to other parts of a cell? | glogi bodies |
what is a membrane-bound temporary storage spaces? | vacuoles |
what breaks down food molecules and cell wastes? | lysosomes |
what is a group of similar cells working together onone job? | tissues |
different types of tissues working together make up what? | organs |
a group o forgans working together make up what? | organ system |
what is the cell system? | cells-tissues-organs-organ system-organisms |
lenses made images become more what but not always clear? | larger |
modern microscopes use lenses to bend what? | light |
what kind of microscope has on lense? | simple microscope |
what kind of microscope has multiple lenses? | compound microscope |
what kind of microscope has two eyepeices, and creates a 3D image? | stereomicroscope |
powers of the eyepeice multiplied by objective lenses determine total what? | magnification |
what is the most powerful microscope? | electron microscope |
uses a what in a vaccum to bend electronic beams? | magnetic fields |
what must be photographed or produced electronically? | images |
the what is resulted from many scientists' observations and conclusions? | cell theory |
the basic unit of an organism is a what? | cell |
all what are composed of one or more cells? | organisms |
new cells come from old cells through cell what? | division |
what is a nonliving strand of hereditary material surrounded by a protein coating? | virus |
viruses can make copies of themselves only inside a living what? | host cell |
what can make the host cell create new viruses, which kills the host cell? | active viruses |
what hides in the host cell without destroying it? | latent virus |
virus hereditary material becomes part of the what hereditary material? | host cell |
latent viruses can become what and then destroy the host cell? | active |
most viruses only infect certain kinds of what? | cells |
virues are often carried to the host cell trough what? | air |
the what and the host cell must fit together exactly to begin a virul infection? | virus |
what attachs to bacteris adn injects their hereditary material? | bacteriophages |
what weakenes virus particals which allows the host to fight some diseases? | vaccines |
what are not effective treatments for viral infections? | antibodies |