問題一覧
1
evolution of cells
refers to the evolutionary origin
2
Archaea
from the greek words, meaning “ancient” or “primitive”
3
oldest cells on earth are single-cell organisms called?
bacteria
4
eukaryotic cells
protozoa, fungi, plants and animals all have eukaryotic cells
5
prokaryotes “single-celled” belonging to domains;
“bacteria” and “archaea”
6
Autotrophs
produced organic compounds from CO2
7
heterotrophs
obtain organic from leakage
8
Saprotrophs
absorbed nutrients from decaying organisms
9
phagotrophs
digest particulate nutrients
10
life first emerged at least
3.8 billion yrs ago
11
approximately _____ after earth was formed
750 million years
12
magnify the image
eye piece
13
attached to the outside of an eye piece tube
diopter adjustment
14
holds the objective lenses
nose piece
15
directly observed the object
objective lens
16
flat platform that supports the slides
stage clip
17
hole in the stage through which the base
aperture
18
control amount of light
diaphragm
19
concentrate light from the illuminator
condenser
20
located in the base of the microscope
illuminator
21
upper part of the microscope
head
22
supports the microscope head
arm
23
hold the microscope slide
mechanical stage
24
moves the stage up and down
coarse adjustment
25
focus under low power, focusing when using high power lenses
fine adjustment
26
movement of stage back and forth
stage controls
27
microscopes support
base
28
controlling the intensity of the light bulb
brightness adjustment
29
turns the illuminator off and on
light switch
30
what is a cell
basic unit of life
31
atmosphere provides gaseous resources, such as;
-carbon dioxide -oxygen -methane -nitrogen
32
atmospheric pressure helps maintain;
liquid water
33
defined as the amount of solar radiation
isolation
34
earth’s temperature range is controlled by _____ and natural _____
incoming isolation and green house effect
35
earth position in the solar system-earth exist in the?
goldilocks zone
36
these metal produce a magnetic field, known as the;
magnetosphere
37
earth has a molten core of ___ and ___?
iron and nickel
38
moves from higher to lower concentration
simple diffusion
39
diffusion of solvent or water molecules
osmosis
40
lower concentration to a region of higher concentration
active transport
41
support the cell or pathogens that immune cells
endocytosis
42
fussion of secretory vesicles with the plasma membrane
exocytosis