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Exam 1 Review 1010 + Cell Features Flashcards | StudBud
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Exam 1 Review 1010 + Cell Features
Exam 1 Review 1010 + Cell Features
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1
Which pair of structures is found in both eukaryotic and prokaryotic cells?
cell membrane and ribosomes
ribosomes and circular DNA
mitochondria and nuclei
mitochondria and ribosomes
2
Which represents number of protons + neutrons?
charge
atomic number
atomic mass/mass number
column (period) in periodic table
3
What are the subunits/monomers of proteins?
amino acids
lipids
monosaccharides
nucleotides
4
_________differ in numbers of neutrons.
Ions
Isotopes
Isometrics
Isotonic solutions
5
Which is only present in a eukaryotic cell?
cell membrane
ribosome
Golgi body
DNA
6
The sodium-potassium pump is an example of
passive transport
exocytosis
active transport
facilitated diffusion
7
Which does NOT describes atomic number?
determines order in periodic table
never changes for a given element
equals protons + neutrons
equals the number of protons
8
Diffusion, osmosis, and facilitated diffusion are examples of
passive transport
active transport
endocytosis
9
The smallest, most simple cells are called?
Prokaryotes
Protists
Eukaryotes
Protocells
10
Animal cells contain ________, which provides an internal framework for movement of organelles
a cell membrane
a nucleus
a cell wall
cytoskeleton
11
Materials that are __________ will NOT react with/dissolve in water.
hydrophobic
polar
hydrophilic
charged
12
A scientific theory
is an explanation for natural phenomena that is proven.
is an idea as to how something might have happened.
has a large body of evidence; from many hypothesis tests.
is a widely-shared opinion.
13
Receptor mediated endocytosis is...
Drinking materials - liquids into the cell
Eating materials - solids into the cell
Focused materials - specific things into the cell
Spitting out materials - materials out of the cell
14
This organelle is found in plant cells and is used to store water, ions, and nutrients.
vesicle
chloroplast
lysosome
central vacuole
15
The ________the pH, the __________number of hydrogen ions.
lower; lower
greater; greater
the what, the what?
lower; greater
16
Why does active transport require energy?
It allows diffusion of large molecules
it moves molecules against their concentration gradient
it uses carrier proteins to move molecules through the cell membrane
it uses vesicles to move substances out of the cell
17
Which subatomic particle determines how elements react with each other?
protons
neutrons
electrons
nuclei
18
In endocytosis and exocytosis,
molecules move with protein channels
molecules move with vesicles
molecules move with a concentration gradient
molecules stay put
19
Cats love fish more than dogs love fish.
Not a good hypothesis because it's not an if/then statement.
This is a scientific theory.
This is not a good hypothesis because it is not testable.
This is a good hypothesis.
20
Proteins are made on these small structures.
ribosomes
Golgi body
mitochondria
lysosomes
21
Which is the negatively charged particle located outside the nucleus of an atom?
electron
neutron
isotope
proton
22
What type of cell is illustrated?
prokaryote
plant cell
animal cell
23
TRUE OR FALSE? Correlation equals causation.
True
False
24
What is your independent variable?
room temperature
time given to take the test
average score on test
score on the math test
25
What is your dependent variable?
time given to take the test
score on math test
room temperature
student's skin temperatures
26
What are the four organic compounds all living things are made up of?
proteins, carbohydrates, lipids, nucleic acids
oxygen, carbon dioxide, water, nitrogen
protons, neutrons, electrons, nuclei
earth, air, fire, water
27
What is a
hypertonic
solution?
Has an EQUAL concentration of dissolved solutes
Has a HIGHER concentration of water
Has a HIGHER concentration of dissolved solutes
Has a LOWER concentration of dissolved solutes
28
Which organelles contain digestive enzymes to help break down wastes, food particles, and dying cell parts?
vacuoles
lysosomes
mitochondria
vesicles
29
Which of the following structures do animal cells lack?
chloroplasts and nuclei
central vacuoles, cell membranes, and mitochondria
cell walls, chloroplasts, and central vacuoles
cell walls and mitochondria
30
Which type of chemical bond involves exchange of electrons?
covalent
hydrogen
ionic
van der Waal's
31
What type of cell is illustrated?
plant
animal
prokaryote
32
In a hypotonic solution, a red blood cell will:
remain the same
shrink
None of these are correct
swell
33
If a neutral atom gains electrons, it will become ___________.
positively charged
covalently bonded
greater in atomic mass
negatively charged
34
Some prokaryotic cells have _________, that aid in movement.
Flagella
Capsules
Cell membrane
Cell Wall
35
Which property of the cell membrane makes it ideal as a selectively permeable barrier?
the polar and non-polar regions of the phospholipids
only allows small ions to pass
water can easily move between the cell and environment
the triple layered structure insulates the cell
36
A carrier protein transports a molecule across the cell membrane by means of diffusion
facilitated diffusion
osmosis
exocytosis
receptor-mediated endocytosis
37
Which type of chemical bond involves sharing electrons?
van der Waal's
hydrogen
covalent
ionic
38
What is exocytosis?
A way for large molecules to enter the cell.
A way for large molecules to leave the cell.
A form of passive transport.
Molecules moving from high to low concentration.
39
A solution with pH of 12 is ___________.
a strong base
neutral
a weak base
a weak acid
a strong acid
40
What type of cell is illustrated?
Eukaryotic
Protist
Prokaryotic
Plant
41
The _________of water is responsible for its many unique, life-supporting properties.
polarity
ionic bonding
liquidity
42
One side is 50 ppm saline, the other side is 25 ppm. The NET movement of water will be in which direction?
toward the 50 ppm side
both directions equally
toward the 25 ppm side
the solutions are isotonic; there will be NO net movement of water
43
Which organelle converts sugar into energy?
chloroplast
mitochondria
Golgi body
ribosomes
44
Which represents your hypothesis?
If students are hot, they will score lower on a math test
Does room temperature affect scores on a math tests?
A warmer room temperature will result in lower math scores.
I don't know. I hate MATH!
45
The role of this organelle is to package and process materials within the cell.
Golgi body
Ribosome
Cell membrane
Endoplasmic reticulum
