WorksheetsQuiz for Dad
Total questions: 40
Worksheet time: 3hrs 14mins
Identify the types of membrane transport processes described.
A clump of bacterial cells is engulfed within a macrophage
Semi-permable membrane
Active Transport
Endocrytosis
Water
Identify the types of membrane transport processes described.
The intracellular concentration of ions is reduced as calcium ions are pumped out of the cell.
Endocytosis
Exocytosis
Osmosis
Active transport
Identify the types of membrane transport processes described.
Synaptic vesicles fuse with the neuronal cell membrane and expel neurotransmitter molecules from the cell and into the synaptic cleft.
Diffusion
Endocytosis
Exocytosis
Osmasis
Membrane transport processes may be described as either passive transport or active transport. What distinguishes active transport processes from passive transport processes?
You do not need a process
Whether energy is not the process
Whether energy is required by the process
Energy is not a process
Classify the following membrane transport processes as either active transport or passive transport by writing the names under the proper category.
Click on the two that are correct. One Passive and one Active.
Note: You may need scrap paper.
Passive Transport: Diffusion, Active Transport, Osmasis
Passive Transport: Diffusion, Facilitated Diffusion, Osmasis
Active Transport Processes: Endocytosis, Exocytosis, Diffusion
Active Transport Processes: Endocytosis, Active Transport, Exocytosis
In order for osmosis to occur, what two features (things) must be present?
Note: Pick two answers.
Water.
Exocytosis
Facilitated Diffusion
Semi-permenble membrane
Below is a list of cell components. Select the cell components that are absent from Prokaryotic cells. (Click the cells that are not in Prokaryotic cells.) Only the components present in prokaryotes will remain readable.
Note: Not all cells are listed. Choose 2.
Cell wall
Golgi apparatus
Cytoplasm
Nucleus
Ribosomes
What is a Milli?
.01
.001
.000001
What 2 features of Chloroplasts?
Self replicate
Produce sugar from C02, water, and light
Passive Transports
Active Transports
Why are cells small?
Because they want to be.
So they can fit many in your body.
More efficient then large and travel time of substances.
What is 1 membrane feature?
Semi-permable Barrier
Permable Barrier
Has a barrier
Has no barrier
If you do not get a 80% or higher you owe me a brownie point.
(The answer is Yes, your welcome.)
Yes.
No.
A chemical reaction with △G = -12 kcal/mol is...
exergonic
endergonic
reduction
anabolic
All of the following characteristics are associated with allosteric regulation of enzyme activity, EXCEPT:
Either an inhibitor or an activator molecule may bind to the enzyme, which is not the active site.
Regulatory molecules bind to a regulatory site on the enzyme, which is not the active site.
A molecule resembles the substrate and competes with substrate to bind the active site.
An activator molecule can stabilize and allosteric enzyme in its active form.
Which metabolic process is common to both aerobic cellular respiration and the anaerobic pathway?
Krebs cycle
Electron transport chain
Conversion of pyruvate to lactate
Glycolysis
The electron transport chain is located within the ________ of Eukaryotes.
mitochondria
cytosol
nuclei
plasma membranes
What happens to transported electrons at the end of the electron transport chain?
Electrons are used up
Electrons are transformed into ATP
Electrons are changed into energy
Electrons are transferred to oxygen (O2)
Which kind of metabolic poison would most directly interfere with the process of glycolysis?
An agent that binds to pyruvate and inactivates it
An agent that reacts with oxygen and depletes its concentration within the cell
An agent that reacts with NADH and oxidize it to NAD
Competitive inhibitors affect enzyme activity by binding to _______.
The enzyme active site, thus preventing substrate molecules from binding to the enzyme.
Substrate molecules, thus preventing them from binding with the enzyme.
The enzyme active site, thus promoting substrate molecules to bind with the enzyme.
Letter that represents the net amount of free energy released from the conversion of reactants to products, when catalyzed by an enzyme.
A
B
C
D
NADH and FADH2 both donate electrons to the electron transport chain. How does NADH differ from FADH2 ?
Fewer ATP are generated from electrons donated by NADH
More ATP are generated from electrons donated by NADH
Electrons donated from NADH are transported to CO2
Where in the cell does the process of oxidative phosphorylation occur?
Mitochondrion
Cytosol
Cell membrane
Nucleus
During what stage of aerobic cellular respiration is oxygen required?
Glycolysis
Krebs cycle
Oxidative phosphorylation
All of the above (all of the questions)
Joe thought that consuming 500 mg of vitamin C orally, once, a day, could help prevent colds. This statement is best described as a(n):
Theory
Law
Experiment
Hypothesis
What is the purpose of the control group in an experiment?
To eliminate error in the experiment
To provide a comparison to the experimental group.
To act as the dependent variable
Select the TRUE statement about living cells.
Only cells are made of matter
Cellular proteins are alive
Cells are made of molecules
A solution changes from pH 5 to pH 3. By how much did the hydrogen ion (H+) concentration of the solution change?
Decreased by 2
Increased by 2
Decreased by 20x
Increased by 100x
Which of these statements is correct?
Scientific ideas are subjected to rigorous and repeated testing.
Scientists begin with conclusions and then generate evidence to support them
In science, there are absolute truths.
A hypothesis is __________.
A prediction about what will happen
An explanation for why some natural event occurs
A proven scientific fact
An educated guess about anything
Select the unit which measures volume?
Celsius
Gram
Meter
Liter
Select the heaviest mass.
0.0006 kg
150 mg
0.9 g
A given solution has a starting pH of 3. How will adding antacid most likely affect the pH of the solution?
The pH of the solution will change to 1.
The pH of the solution will remain 3.
The pH of the solution will change to 6.
The pH of the solution will change to 12.
The buffered solution will change color.
Why is oil used with the oil immersion lens?
To increase magnification
To increase the field of view
To increase resolution
To make the microscope parfocal
Passive membrane transport process include __________.
Movement of a substance down its concentration gradient
Consumption of ATP
Movement of water from an area of lower concentration of water to an area of higher concentration
All semi-permeable membrane is stretched across a chamber filled with water. The membrane is only permeable to water. Sixty mg of salt is added to the left of the chamber. Which of the following will happen?
water will move toward the right side
salt will move toward the right side
water will move toward the left side
salt will move toward the left side
All of the following are functions of the cell membrane except that it __________.
is selectively permeable.
prevents any potassium or sodium ions from crossing.
encloses the cell contents.
Prokaryotic cells contain which one of the following components?
Mitochondria
Ribosomes
Nuclear envelope
Chlorophlasts
A solution that is hypotonic has a(n) __________ concentration compared to another solution.
Equal solute (and water)
Higher water
Higher solute
Lower solute
Which statement best describes the magnification of an image seen through a microscope?
The act of magnifying something.
The amount of detail that can be seen in the image.
The increased size of the image relative to its original size.
The depth of the specimen that can be seen in the image.
Hypotonic refers to a solution with __________.
a lower solute concentration than another solution
a lower water concentration that another solution
less solute than solvent
less solvent than solute
