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