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WorksheetsBIO 156 Exam 3 Review
Total questions: 55
Worksheet time: 29mins
light dependent reactions of photosynthesis
Diffusion with the help of transport proteins is called
phagocytosis
Na-K Pump
Facilitated Diffusion
Active Transport
Enables cell to engulf bulk quantities of specific large molecules is called
pinocytosis
phagocytosis
receptor-mediated endocytosis
exocytosis
Movement of molecules "up" or "against" the concentration gradient (meaning low to high) is called
passive transport
active transport
diffusion
facilitated diffusion
Movement of any particle "down" or "with" the concentration gradient is called
diffusion
endocytosis
exocytosis
active transport
Type of transport that requires ATP is called
passive transport
active transport
Aquaporins are involved in which type of transport?
active transport
facilitated diffusion
phagocytosis
simple diffusion
Diffusion of water across a semi-permeable membrane is known as
diffusion
osmosis
active transport
endocytosis
What happens to a cell when exposed to a hypertonic solution?
shrivels
swells
stays the same
What happens to a cell in an isotonic solution?
shrivels
swells
stays the same
Plant cells are happy when they are turgid, which solution would maintain a plant's turgidity?
hypotonic solution
hypertonic solution
isotonic solution
What happens to a single-celled organism placed in a drop of pure water?
shrivels
swells
stays the same
Which type of solution would cause a plant cell to be flaccid, not plasmolyze, but flaccid?
hypotonic
hypertonic
isotonic
The main component of cell membranes are
proteins
phospholipids
cholesterol
carbohydrate tags
When you are sick and your white blood cells engulf the foreign bacteria, how would this occur?
By diffusion
By phagocytosis
By pinocytosis
By facilitated diffusion
Which structure or substance, associated with the cell membrane, helps to keep the cell membrane fluid and flexible?
Glycocalyx
Phospholipids
Cholesterol
Proteins
Which part of the cell membrane is hydrophobic?
the lipid heads
the phosphate tails
the lipid tails
the phosphate heads
In a glass of salt water, salt is the ___.
Solvent
Solute
Solution
The sodium-potassium pump is an example of ___.
Vesicular transport
Simple diffusion
Facilitated diffusion
Primary active transport
Which structure, associated with the cell membrane, would be most important to immune cells patrolling the body for foreign invaders?
Glycocalyx
Phospholipid bilayer
Proteins
Cholesterol
Which of the following is NOT a term associated with the cell membrane?
Phospholipid bilayer
Fluid mosaic
Selectively permeable
Denaturation
Which of the following best describes osmosis?
The movement of water from areas of low solute concentration to areas of high solute concentration.
The movement of solutes from areas of high water concentration to areas of low water concentration
The movement of water from areas of high solute concentration to areas of low solute concentration
The movement of solutes from areas of low water concentration to areas of high water concentration
Facilitated diffusion transports materials against/up their concentration gradient.
True
False
Which of the following substances needs a transport protein to cross the cell membrane? Mark all that apply.
gasses (i.e. oxygen and carbon dioxide)
ions (i.e. Na+, K+)
hydrophobic, lipid-soluble, non-polar molecules
large molecules (i.e. glucose)
hydrophilic, water-soluble, polar molecules
Which of the following transport types require ATP to occur? Mark all that apply.
Facilitated diffusion
Endocytosis
osmosis
Primary active transport
Simple diffusion
Which type of intercellular junction allows cells to communicate by sharing cytosol?
Gap junctions
Tight junctions
Desmosomes
Chemiosmosis occurs during which process?
oxidation of pyruvate
electron transport chain
substrate-level phosphorylation
oxidative phosphorylation
Glycolysis is an anaerobic process.
True
False
Which of the following is a monosaccharide?
sucrose
lactose
glucose
maltose
Pyruvate is produced during which process?
oxidation of pyruvate
citric acid cycle
chemiosmosis
glycolysis
Glucose is broken down during which process?
glycolysis
citric acid cycle
oxidative phosphorylation
oxidation of pyruvate
When NADH is oxidized, it ___.
loses electrons
turns into pyruvate
turns into acetyl CoA
gains electrons
Where does glycolysis occur?
nucleus
mitochondrion
ribosome
cytosol
Which of the following is produced during fermentation in humans?
ethanol
carbon dioxide
oxygen
lactic acid
The energy stored in chemical bonds is a type of ___.
kinetic energy
potential energy
chemical energy
mechanical energy
If you were conducting an experiment testing the effect of pH on the reaction rate of fermentation in yeast, what is your independent variable?
reaction rate
yeast
pH
temperature
Glucose is the only molecule humans can make ATP from.
True
False
Which of the following is produced during fermentation in yeast?
lactic acid
oxygen
salt
ethanol
What organelle is needed for aerobic respiration to occur?
endoplasmic reticulum
mitochondria
nucleus
ribosomes
Which strands of DNA are copied during DNA synthesis/replication?
the leading strand and the lagging strand
the leading strand only
neither the leading strand nor the lagging strand
the lagging strand only
Which enzyme adds DNA nucleotides during DNA replication?
polymerase
ligase
primase
helicase
Based on the gel electrophoresis in the picture above, which man is the father of the kid?
man #2
neither man could be the kid's father
man #1
either man could by the kid's father
Which of the following statements is correct?
thymine can bond with both adenine and uracil
pyrimidines always pair with pyrimidines
guanine always bonds with cytosine
adenine can bond with both cytosine and adenine
The 5' and 3' ends of a DNA strand are due to the arrangement of carbon atoms in which molecule?
phosphate
deoxyribose
nitrogenous base
DNA polymerase
Which of the following best illustrates semi-conservative DNA replication?
A
B
C
D
Which enzyme adds RNA nucleotides to the DNA strand during DNA replication?
helicase
ligase
polymerase
primase
All mutations have negative effects on an individual.
True
False
Where does DNA replication occur?
rough endoplasmic reticulum
cytoplasm
nucleus
ribosomes
Which of the following best describes why Okazaki fragments exist:
because the DNA strands in a double helix are anti-parallel and polymerase travels in only one direction.
because there are sister chromatids
because there are homologous chromosomes
because the DNA strands in a double helix are semi-conservative
Which of the following nucleotides are purines? Select all that apply.
guanine
adenine
thymine
cytosine
Which of the following nucleotides are pyrimidines? Select all that apply.
guanine
adenine
thymine
cytosine
uracil
The ratio of LDL to HDL is considered when comparing the "good" and "bad" forms of what molecule?
triglycerides
glucose
cholesterol
glycogen
Which molecule is used as an immediate energy source for all tissues and is the primary source of energy for the brain?
glycogen
proteins
triglycerides
glucose
Glucose molecules are stored in animal tissues as a complex carbohydrate (polysaccharide), known as ___.
glycogen
triglycerides
starch
polypeptides
