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Fall Semester Bio 312 Exam Review 2022 Flashcards | StudBud
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Fall Semester Bio 312 Exam Review 2022
Fall Semester Bio 312 Exam Review 2022
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1
What is a chromosome?
A type of reproduction
Tightly wound genetic material and protein
A segment of a gene
A segment of DNA
2
Living things are
organic
which means that they are built out of which main element?
carbon
hydrogen
oxygen
nitrogen
3
Which subatomic particle is found
outside the nucleus
of an atom?
solute
electron
neutron
proton
4
Which subatomic particle has a charge of -1?
electron
cannot determine
proton
neutron
5
A pure substance composed of one type of atom is known as a(n):
element
solution
molecule
compound
6
In a controlled experiment, how many variables should be changed at a time?
3
2
4
1
7
A single organism making an exact copy of itself is:
asexual reproduction
sexual reproduction
8
The atomic mass of Flourine (F) is closest to:
19
10
9
18
9
The ONLY prokaryotic organisms that exist are bacteria and archaea.
TRUE
FALSE
10
Said "omnis cellula e cellula," which translates that all cells come from pre-existing cells
Hooke
Virchow
Schwann
Leeuewenhoek
11
The attraction of a water molecule to a different substance such as the side of a glass beaker is known as:
cohesion
polarity
adhesion
solvent
12
DNA : RNA ::
2 strands: 1 strand
1 strand: 2 strands
13
Where is DNA located in a eukaryotic cell?
In the chloroplasts
In the mitochondria
In the cytoplasm
In the nucleus
14
Which choice is
not
a part of the cell theory?
All cells come from nonliving cells
Cells are life's most basic subunit
All living things are composed of cells
Every organism is cellular
15
The first step of the scientific method is always:
experiment
collect data
observation
create a hypothesis
16
Which two subatomic particles are found
in the nucleus
of an atom?
nuetrons and protons
protons and electrons
electrons and protons
neutrons and electrons
17
An unequal sharing of electrons between atoms in a molecule leads to:
high specific heat
density
solvent
polarity
18
If an atom loses an electrons when forming a bond, it will become a:
positive ion
negative ion
19
Scientist who used magnifying glass to observe tiny living things in pond water & teeth scum ;)
Leeuwenhoek
Schleiden
Hooke
Virchow
20
Which RNA molecule is transcribed from a DNA sequence of A-G-T-A?
C-A-G-C
T-C-A-T
U-C-A-U
U-A-C-T
21
Atoms of the same element which differ in the number of neutrons are called:
isomer
isotope
neutron mass
ions
22
Regulates what enters & exits a cell.
nucleus
cell membrane
rough ER
cytoplasm
23
Structure
inside the nucleus
whose function is to make ribosomes.
nuclear pore
cytoplasm
nucleolus
lysosome
24
A catepillar transforming into a butterfly is an example of:
evolution
genetic code
homeostasis
growth and development
25
All cells possess
a cell wall
nuclear membrane
cytoskeleton
cytoplasm
26
The subatomic particle with zero charge is the:
solute
electron
neutron
proton
27
This type of bond forms when electrons are
shared
between atoms.
hydrogen
peptide
ionic
covalent
28
Cellular structure similar to a tail which helps certain cells to move
microfilament
flagella
cilia
microtubule
29
An organelle which
stores
different substances in plant cells, such as water & dissolved nutrients
vacuole
nucleolus
Golgi apparatus
nucleus
30
This organelle is found in eukaryotes & is the site of ENERGY production (ATP!)
mitochondria
lysosome
plasma membrane
chloroplast
31
Small unicellular organisms which lack a true nucleus
eukaryotes
prokaryotes
ribosomes
mitochondrion
32
A sugar, phosphate and nitrogen base make up a(n):
monosaccharide
nucleotide
amino acid
protein
33
Organelle containing digestive enzymes, which breaks down nutrients and cleans up wastes &/or old cell parts
ribosome
vesicle
lysosome
mitochondria
34
The cell membrane is comprised primarily of:
none of these is correct
nucleic acid channels
carbohydrates
phospholipids & proteins
35
A stable internal environment is known as:
growth
homeostasis
evolution
metabolism
36
Credited with naming the cell
Hooke
VanLeeuwenhoek
Schleiden
Schwann
37
Stacks of flattened membranes which package substances for transport in cells
(like FedEx)
Golgi apparatus
Rough ER
Ribosome
Nucleolus
38
Which RNA molecule makes a temporary copy of DNA?
rRNA
mRNA
tRNA
none
39
Which of the choices below is NOT a form of passive transport used by cells?
facilitated diffusion
simple diffusion
active transport
osmosis
40
Cells with a true nucleus include:
eukaryotes
plant cells
animal cells
all of these
41
What type of RNA matches the coded mRNA message and carries amino acids to the ribosome?
ribosomal RNA (rRNA)
messenger RNA (mRNA)
transfer RNA (tRNA)
42
This type of bond forms when electrons are transferred from one atom to another.
ionic
covalent
hydrogen
peptide
43
Protein-producing organelle found in prokaryotes & eukaryotes.
nucleus
endoplasmic reticulum
Golgi apparatus
ribosomes
44
The study of living things is:
science
biology
genetics
ecology
45
How many protons does an atom of Boron (B) contain?
11
10
6
5
46
This forms when atoms from 2+ elements are chemically combined
compound
isotope
adhesion
element
47
The sugar found in DNA is:
deoxyribose
guanine
nucleotides
ribose
48
Which does
not
accurately describe the cell membrane?
composed of cellulose
selectively permeable
lipid bilayer
fluid mosaic
49
This term means
"little organ"
organelle
tissue
organ system
cellular makeup
50
What nitrogenous base does RNA contain in place of thymine?
adenine
guanine
cytosine
uracil
51
Jelly-like substance within the cell, providing support & suspending the organelles
Nucleus
Smucker's grape
Cytoplasm
Mitochodria
52
The
hydrophilic
portion of a phospholipid _____ water.
is repelled by
is attracted to
can't stand
turns away from
53
A plant biologist who determined that all plants are made of cells
Schwann
Schleiden
Hooke
Linnaeus
54
What is the correct sequence for making proteins?
DNA->Translation->mRNA->Transcription->Protein
Protein->Transcription->mRNA->Translation->DNA
DNA->Transcription->mRNA->Translation->Protein
RNA->Transcription->mRNA->Translation->DNA
55
Organelle serving as the
control center
of eukaryotic cells.
DNA
cytoplasm
cell membrane
nucleus
56
Organelle which provides structural support to cells.
cytoskeleton
Golgi apparatus
lysosomes
endoplasmic reticulum
57
Transport network of membranes which produces & then moves substances through a cell; exists in rough & smooth varieties
Golgi apparatus
endoplasmic reticulum
cytoskeleton
nuclear membrane
58
Site of photosynthesis in cells that can make their own food
Chloroplast
Rough ER
Ribosome
Mitochondria
59
This weak bond forms
between
water molecules, and also connects the base pairs in a DNA molecule
peptide
hydrogen
covalent
ionic
60
What enzyme breaks down the hydrogen bonds between the nitrogenous bases of DNA?
helicase
polymerase
protease
amylase
61
The smallest, most basic unit of matter is:
atom
molecule
mixture
compound
62
A child looking similar to its parents is an example of:
growth and development
genetic code (DNA)
made of cell
response