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EOCA Semester 1
Test Description: Use this to study for your semester test.
Instructions: Answer all questions to get your test result.
1) How do you determine the total magnification on a microscope?
A
It is always precalculated
B
objective lens minus optical lens
C
objective lens + optical lens
D
objective lens X optical lens
2) What is the purpose of the cell membrane?
A
to allow things in and out of the cell
B
to protect and support the cell
C
to convert food into energy
D
to allow for cellular respiration
3) Where are specialized cells found?
A
only in humans
B
in multicellular organisms
C
bacteria cells
D
in unicellular organisms
4) Where does an autotroph get its energy
A
by eating other organisms
B
from plants
C
from converting sunlight into energy
D
completely from the mitochondria
5) What happens during photosynthesis?
A
Autotrophs convert food into energy and release CO2
B
Heterotrophs use the mitochondria to convert food to energy
C
Autotrophs convert O2 and sunlight into glucose for energy
D
Autotrophs convert CO2 and sunlight into glucose for energy
6) What does a DNA molecule look like?
A
a twisted triple helix
B
a straight ladder
C
a transparent particle of mist
D
A twisted double helix
7) What is copied during replication in the interphase stage of the cell cycle?
A
DNA
B
the cells
C
the oxygen
D
the food
8) What is diffusion?
A
Movement of water molecules
B
keeping internal conditions stable or balanced
C
Movement of molecules across the cell membrane from low concentration to high concentration
D
Movement of molecules across the cell membrane from high concentration to low concentration
9) What does AA mean to geneticists?
A
Homozygous recessive or purebred recessive
B
Homozygous dominant or Purebred dominant
C
Heterozygous recessive or hybrid recessive
D
Heterozygous dominant or hybrid dominant
10) What is a males gender chromosomal combination?
A
YY
B
XY
C
XXXY
D
XX
11) If a balloon pops and the girl screams, what is the stimilus?
A
The balloon pops
B
The girl screams
C
The dog barks
D
There is no stimilus in this scenario
12) If a car backfires and man jumps, what is the response?
A
the air is dirty
B
the car backfires
C
there is no response in this scenario
D
the man jumps
13) What is keeping internal conditions stable or balanced?
A
engulfing
B
homeostasis
C
spontaneous generation
D
heterotrophic
14) What is the most abundant chemical in living organisms?
A
Nitrogen
B
water
C
lipids
D
Carbon
15) What type of organism is able to make its own food for energy?
A
consumer
B
autotroph
C
heterotroph
D
multicellular
16) What is the simplest grouping of more than one kind of organism in the biosphere?
A
community
B
population
C
an ecosystem
D
species
17) What is an endangered species?
A
one that is in danger of extinction
B
one that is extinct
C
one that has never been proven
D
one that lives in the ocean
18) An example of an autotroph
A
deer
B
monkey
C
jelly fish
D
rose
19) An example of a heterotroph
A
vine
B
monkey
C
rose
D
grass
20) What organelle gathers the sun's energy for photosynthesis?
A
cell membrane
B
chlorophyll
C
mitochondria
D
chloroplast
*select an answer for all questions
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