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Bio 2021 Fall exam review
Bio 2021 Fall exam review
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CH 1-3 & Photosynthesis
Flashcards
87 cards
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Practice quiz
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Questions
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Answers
1
Why won't oil dissolve in water?
needs to be the same charges.
covalent vs ionic
difference in densities
polar vs nonpolar
2
Which of the following brings in large cells or molecules into a cell?
facilitated diffusion
exocytosis
phagocytosis
pinocytosis
3
What is an aquaporin used for?
moving water
moving enzymes
moving sugar
moving ions
4
What is passive transport?
It moves only ions from low to high concentration without ATP
It moves stuff from high to low concentration without ATP
It moves molecules from low to high concentration with ATP
It moves molecules from high to low concentration with ATP
5
Which of the following is true of Na-K pump?
2 Na move out for 3 K to move in.
2 K move out for 3 Na to move in.
3 K move out for 4 Na to move in
3 NA move out for 2 K to move in
6
Which solution is best for cells?
hypertonic
saltwater
hypotonic
isotonic
7
What provides energy for the Calvin cycle?
itself (GTP & NADPH)
peroxisomes (GTP & NADH)
cellular respiration (FADH2 & NADH)
Light-depenndent reaction (NADPH & ATP)
8
The role of chlorophyll is to ...
break down water.
create NADPH.
create ATP.
absorb photons from the sun and transfer energy to electrons.
9
Describe the graph.
It's an endothermic reaction.
It's activation energy.
It's an exothermic reaction.
It's lowered activation energy because of an enzyme.
10
The phospholipid bilayer has
a polar phosphate heads and nonpolar fatty acid tails
a nonpolar P head and nonpolar fatty acid tails
a nonpolar PGAL head and polar fatty acid tails
a polar K head and nonpolar fatty acid tails
11
Chemical ice packs are an example of what kind of reaction?
hypothermic
exothermic
hyperthermic
endothermic
12
Where do you find DNA in eukaryotes?
Golgi apparatus
ribosomes
peroxisomes
nucleolus
13
Active transport ...
uses glucose to move molecules with the concentration gradient.
uses ATP to move molecules against the concentration gradient.
uses NADPH to move ions against the concentration gradient.
moves molecules with the concentration gradient without energy.
14
Why is water important?
It's found everywhere
It evaporates.
It boils easily.
It's a universal solvent
15
What is the job of centrioles?
helps move chromosomes for cellular replication
creates structure for the cell
forms flagella
forms chromosomes
16
What powers ATP synthase?
hydrogens moving from high to low concentration
hydrogens moving from low to high concentration
ATP
NADPH
17
What makes up metabolism?
catabolism & anabolism
adding mass and changing form
changing over time
maintaining a stable internal environment
18
Which of the following is basic on the pH scale?
6.9
2.3
9.8
7.3
19
The smallest unit that can carry on all of life's functions is?
cell
organelle
quark
atom
20
How is glucose formed in the Calvin cycle?
RuBP + CO2
PGAL + CO2
2 PGALs
RuBP + PGAL
21
After diffusion, the substances will be
greater on the outside than inside.
constantly changing.
at dynamic equilibrium.
greater on the inside than outside.
22
What is chemosynthesis?
making energy from sulfur
making ATP from ATP synthase
making energy from eating other organisms
making energy from the sun
23
which does not use energy?
Calvin cycle
gated ion channel
Na-K pump
pinocytosis
24
How does the cell use energy?
a P is broken from ATP
triglycerides are used as currency
glycogen is used as currency
a P is broken from ADP
25
Diffusion
doesn't use energy.
goes from low to high concentration.
only deals with liquids.
only deals with solids.
26
Describe a hypertonic solution.
It depends on the solutes.
Same in and out.
More solutes out of the cell; water leaves the cell.
More solutes in the cell; water enters the cell.
27
What is homeostasis?
maintaining a constant internal environment.
gaining mass and changing forms.
made of one or more cells.
catabolism & anabolism
28
Which of the following helps the cell maintain homeostasis?
flagella
cell membrane
myosin
rough ER
29
If a cell with enzymes is exposed to extreeme pH or temperatures, what would happen?
nothing
enzymes would denature
enzyme creation would double
enzymes would cause chemical reactions to occur twice as fast.
30
What are the products of the Calvin cycle?
ADP + P, NADP+, RuBP, glucose
ATP, NADH, RuBP
ATP, NADPH, RuBP, glucose
ATP, NADPH, RuBP
31
Why are plants green?
chlorophyll absorbs green and reflects red and blue.
chlorophyll absorbs yellow and blue and reflects red.
chlorophyll absorbs red and blue and reflects green.
chlorophyll absorbs yellow and blue and reflects red.
32
What does a heterotroph do?
eats other organisms to obtain energy
lives in extreme places.
lives in average places
makes its own food.
33
What can store luciferace, which helps in bioluminescence?
lysosome
Golgi apparatus
vacuole
peroxisome
34
What is a glycogen?
triglyceride of glycerols used as plants energy storage.
polysaccharide of starch used as plant energy storage.
polysaccharide of glucose used as animal energy storage.
polysaccharide of chitin used as insect energy storage.
35
The excretion of materials to the outside the cell by discharge from vesicles using ATP is
diffusion
exocytosis
osmosis
endocytosis
36
How do cells get energy from ATP?
break H off of NADPH creating NADP + H
add H to ATP creating ATPH
add P to ATP creating ATP + P
break last P from ATP creating ADP + P
37
Matter cannot be created nor distroyed. This is an example of...
prediction
theory
hypothesis
law
38
Question, H
o
/H
a
, and ___.
analysis
repetition
research
experiment
39
What is the job of the central vacuole?
produces lipids
uses turgor pressure to move the plant
produces protein
stores DNA
40
What is the job of water in the light-dependent reaction?
create CO2 and hydrogen
create hydrogen and electrons
create ATP & NADPH
create ATP+ P & NADP + H
41
Repetition is important because
it reduces experimental error.
it proves the experiment correct.
it represents the entire population.
it disproves others.
42
Which of the following statements is true?
Strongest to weakest: covalent, ionic, hydrogen
bond strength depends on the elements involved.
Enzymes & hormones change bond strength.
All elements can form covalent bonds at the right temp.
43
What elements make up an organic molecule?
N, C, O, H
I, P, C, K
Mn, Na, C, G
Ca, C, O, P
44
What is an example of a prokaryote?
animal
bacteria
plant
fish
45
Where is the Calvin cycle?
lumen
stroma
matrix
cytoplasm
46
Who changed Cell Theory?
Schwann & Schleiden
Karl von Baer
Virchow
van Leeuwenhoek
47
Which of the following is the equation for photosynthesis?
Glucose + water + carbon dioxide --> oxygen + LIGHT
oxygen + water+ LIGHT --> glucose + carbon dioxide + ATP
Glucose+ oxygen --> water + carbon dioxide + ATP
water + carbon dioxide + LIGHT --> glucose + oxygen
48
Which of the following is one difference between plant and animal cells?
Only plant cells have cell walls.
Only animal cells have mitochondria.
Plant cells have ribosomes and animal cells don't.
Only animal cells have nuclear membranes.
49
What organelle moves a cell forward?
Golgi apparatus
flagella
cilia
centriolles
50
Which explains facilitated diffusion?
moves items against the concentration gradient
uses a receptor protein
uses ATP
requires a transport protein
51
What is an example of only cohesion?
capillary action
water in cells maintaining temp
sugar dissolving in water.
insects walking on water
52
A structure within a cell that performs a specific function is called
organelle
biology
organ
cell
53
What does mitochondria do?
creates NADPH from triglycerides
creates GTP from chitin
creates NADH from glycerol
creates ATP from glucose or fatty acids
54
Which describes a eukaryote?
Has ribosomes.
Has cytoplasm.
Has cell wall.
Has DNA in the nucleus.
55
Redi's experiment
used nutrient broth to prove spontaneous generation
used rotting meat to disprove spontaneous generation
used rotting meat to prove spontaneous generation
used nutrient broth to disprove spontaneous generation
56
What moves particles around the cell?
flagella
cilia
podocyte
intermediate filaments
57
What links amino acids together?
peptide bonds
hydrogen bonds
ionic bonds
covalent bonds
58
You would find the most mitochondria in ...
brain tissue.
lung tissue.
liver tissue.
muscle tissue.
59
Experimental design includes
data, IV, peer review
peer view, constants
independent & dependent variables, control group
resolution, peer review, control
60
What does the Golgi apparatus do?
regulates what goes in/out of the cell.
creates/process proteins.
packages and sends off molecules.
regulates what goes in/out of the nucleus.
61
What does pinocytosis do?
moves liquids and dissolved nutrients into the cell using ATP.
moves liquids between organells using vacuoles.
moves any material into/out of the cell with glycogen.
moves large cells/molecules into the cell without ATP.
62
Which of the following is a plastid?
mitochondria & chloroplast
cell membrane & cell wall
smooth ER & rough ER
Golgi apparatus & vessicles
63
What is the polymer of a protein?
triglyceride
nucleic acid
polypeptide
polysaccharide
64
What describes the adaptation of CAM plants?
They close thylakoids at night and store ATP during the day.
They close cell membranes during the day and store NADPH.
They close stomata at night and store excess water.
They close stomata during the day and store CO2 at night.
65
Who proposed the term cells?
Schwann
Hooke
Thompson
Schleiden
66
What is the role of chlorophyll?
Absorb light and transfer energy to electrons in e.t.c.
create H2O
Absorb light &transfer energy to electrons in Calvin cycle
Create CO2
67
Where are grana located?
in mitochondria matrix
in the cytosol
in the lumen
in the stroma
68
What is the job of DNA?
allows for response to stimuli
contain information for structure and function
creates energy
creates organelles
69
What are the 2 stages of cellular respiration?
fermentation & chemiosmosis
glycolysis & calvin cycle
glycolysis & fermentation
anaerobic & aerobic
70
What is created by unequal sharing of electrons?
nonpolar covalent bonds
polar covalent bonds
unstable covalent bonds
metal covalent bonds
71
What is the original source of energy for photosynthesis?
NADPH
sun
sugar
ATP
72
What is the function of a lysosome?
digests cell parts
creates proteins
breaks down toxins
digests fatty acids
73
What is the job of DNA?
creates ATP
contains energy
contains info for structure and function
stores waste
74
What did Leuwenhoek do?
He discovered living cells.
He discovered cells.
Claimed plants were made of cells.
He came up with modified cell theory.
75
What is true about prokaryotes?
are complex
evolved first
Are unicellular and multicellular
have organelles
76
Where is chlorophyll located?
stroma
photosystems
all throughout the chloroplast
lumen
77
What makes up a nucleotide?
carboxyl group, O, H
Sugar, phosphsate, nitrogenous base
Carboxyl group, amonia, hydrogen, R group
phosphate, sugar, N
78
What is the order of structures of living things?
organ systems, cells, organs, tissues
cells, tissues, organs, organ systems
cells, organs, tissues, organ systems
organs, tissues, cells, organ systems
79
What is an example of polysaccharides?
fats
chitin
wax
DNA
80
What is endosymbiotic theory?
All organelles were once prokaryotes that early eukaryotes enveloped.
Plastids were once independent prokaryotes that early eukaryotes enveloped.
All prokaryotes were once organelles from early eukaryotes.
All prokaryotes and eukaryotes use to depend on each other to survive.
81
What does this graph demonstrate at at the plateau?
The rate of the light-dependent reation is leveled off b/c CO2 is maxxed.
The rate of the Calvin cycle is leveling off because CO2 is maxxed out.
The rate of the Calvin cycle is increasing because CO2 is increasing.
The rate of the light-dependent reation is increasing because light is incr
82
Which describes an ionic bond?
The electrical pull between an anion and a cation.
The electrical pull between two anions.
The sharing of two or more ions.
The electrical pull between two cations.
83
Which is an example of response to stimuli?
Squinting because of the bright sun.
Opening your eyes.
Having a conversation.
Blinking.
84
Where does CO2 in the Calvin Cycle come from?
mitochondria
smooth ER
light-dependent reaction
nucleus
85
What does ATP synthase do?
makes ADP + P
makes RuBP
makes ATP
makes glucose
86
Compare/contrast precision & accuracy.
They are synonyms
Accuracy is exact of measurement. Precision is true value
They both mean getting it right the first time.
Precision is exact of measurement. accuracy is true value
87
The transport protein for the gated ion channel
uses energy.
are always allowing ions to enter and exit.
moves ions past the polar heads.
moves ions past the nonpolar fatty acid tails.
