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WorksheetsBIO 1140 exam 3 review
Total questions: 29
Worksheet time: 16mins
What's something that a eukaryotic cell has that a prokaryotic cell does not?
DNA
Cell wall
Nucleus
Ribosomes
What are prokaryotic cell walls made out of?
Penicillan
Polypeptide
Preproinsulin
Peptidoglycan
Why are antibiotics effective against prokaryotes but not our body cells?
They target cell walls and dense small ribosomes
They target DNA and mitochondria
They target cell membranes and nucleoid
They target DNA and ribosomes
Diabetes is a condition characterized by _____________.
Hypercalcemia
Hypocalcemia
Hyperglycemia
Hypoglycemia
When a type 2 diabetic eats, sugar is released in the blood and then
Beta cells release insulin and body cells uptake the sugar.
Beta cells release insulin but body cells do not uptake sugar.
Beta cells do not release insulin for body cells to uptake sugar.
Signal transduction via insulin occurs.
Where can the insulin gene, preproinsulin, be found?
Chromosome 7
Chromosome 21
Chromosome 12
Chromosome 11
What stage will insulin be at when it reaches the first transport vesicle?
Preproinsulin
Proinsulin
Insulin
Proinsulin + enzymes
What is the a1c test?
It measures blood glucose concentration before and 2 hours after drinking sugary drink
It measures % of blood sugar attached to hemoglobin over the past 2-3 months
Which of the following is a treatment for someone with type 1 diabetes?
Diet
Exercise
Insulin injections
Metformin
Which of the following does NOT contribute to the structure of our semi-permeable cell membranes?
Phospholipid tails with double bonds
Platelets
Cholesterol
Hydrophobic interactions
Aspirin is administered to heart attack patients because _____________.
It allows platelet receptors to be more sensitive
It stops red blood cells from clotting in the coronary arteries
It allows adhesion of platelets
It stops platelets from arriving to the heart and binding
Which is NOT a possible cell response after uptake of glucose?
Short term storage (glycogen)
Long term storage (fatty acid)
Cellular respiration (pyruvate)
All of these are possible cell responses.
Molecules move ____________ the concentration gradient in facilitated diffusion.
Down
Against
Through
Around
An example of active transport is:
Movement of Oxygen across membrane
Movement of water through aquaporins
Sodium/potassium pump
Glucose transport protein
In our analogy, the container represented _________, the wagon represented ___________, and the tractor represented _________.
Facilitated diffusion, active transport, diffusion
Diffusion, facilitated diffusion, active transport
Diffusion, active transport, facilitated diffusion
Active transport, facilitated diffusion, diffusion
These red molecules are moving __________ the concentration gradient
Down
Against
Up
Beside
In our analogy about signal transduction via insulin, the whistle that signals the dog to come to the fence represents ______________.
The glucose transport protein
The cell membrane
The receptor protein
The insulin
What kind of reaction does the purple graph represent?
Exergonic reaction
Endergonic reaction
Energy coupling is:
Using E from exergonic reactions to drive endergonic reactions.
Using E from endergonic reactions to drive exergonic reactions.
Path of changes in cell proteins that converts extracellular signal to response in the cell.
Allowance of cohesion and adhesion of platelets.
Which molecules are associated with a higher level of PE?
C-O bonds
C-H bonds
H-O bonds
What happens to proinsulin once it leaves the golgi apparatus in a transport vesicle?
Signal peptide is cut off and A-chain and B-chain are folded together.
A-chain is cut off and B-chain and C-peptide are folded together.
Signal peptide is cut off.
C-peptide is cut off and A-chain and B-chain are folded together.
Which of the following is INCORRECT about how preproinsulin gets from a ribosome to the rough ER?
Preproinsulin gets to the rough ER via a transport vesicle.
Preproinsulin gets to the rough ER via a free ribosome finding and attaching to it
Preproinsulin gets to the rough ER because the ribosome is already attached to it.
Platelets have _______ proteins in their membranes that cause shape change and cohesion/adhesion.
Transport
Receptor
Carrier
Channel
The pink arrow is pointing to the ____________.
Body cell
Transport protein
Transport vesicle
Cell membrane
What can be found inside the circled transport vesicle?
Preproinsulin + enzymes = insulin
Proinsulin + enzymes = insulin
Preproinsulin + enzymes = proinsulin
Proinsulin + enzymes = preproinsulin
In this diagram, what does the red arrow represent? (this individual does not have diabetes)
When there is less glucose in the blood, the pancreas continues to release insulin.
When there is more glucose in the blood, the pancreas stops releasing insulin.
When there is less glucose in the blood, the pancreas slows the release of insulin.
When there is less glucose in the blood, the pancreas produces more beta cells.
The natural way for molecules to flow is
From high concentration to low concentration
From low concentration to high concentration
What kind of molecules can diffuse through the animal cell membrane without assistance? Select all that apply.
Large molecules
Small molecules
Polar molecules
Nonpolar molecules
Energy coupling is using energy from _______ reactions to drive _______ reactions
exergonic, endergonic
endergonic, exergonic
