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Midterm

BIOA01H3 Study Guide - Midterm Guide: Nuclear Membrane, Cyanobacteria, Endoplasmic Reticulum


Department
Biological Sciences
Course Code
BIOA01H3
Study Guide
Midterm

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BioAID –BioA01 Midterm #2 Preparation
*courtesy of BioSA tutors*
1. All Cells contain a __ molecule membrane
a) bilateral
b) cholesterol
c) protein
d) lipid
e) potassium
2. The gram-stain sticks to bacterial peptidoglycan wall, peptidoglycan is a ___ of sugars and ___ ____.
a)polymer, lipid molecules
b) carbohydrates, cholesterol chains
c) polymer, amino acids
d) none of the above
e) two of the above
3. An increase phosphofructokinase can be caused by
a) an increase in ATP
b) an increase in AMP
c) a decrease in ATP
d) a decrease in ATP
e) non of the above
4. An inhibition of phosphofructokinase can be caused by
a) an increase in ATP
b) an increase in AMP
c) an increase in citrate
d) all of the above
e) two of the above
5. What would you expect to see in an animal exhibiting hypometabolism?
a) lots of activity
b) Increase in extracellular AMP
c) higher levels of citrate synthesis
d) lower levels of citrate synthesis
e) none of the above
6. What is the final electron acceptor in the electron transport chain?
a) water
b) sodium
c) oxygen
d) monovalent potassium
e) apples
7. Anaerobic respiration in the absence of oxygen may use
a) sulphate

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b) nitrate
c) iron
d) none of the above
e) all of the above
8. What is the main difference between Photosytsem II and Photosystem I?
9. Which photosystem is excited first and what process provides the electron needed to start electron transfer?
10. Enzymes
a) can exhibit competitive (away from the active site) and noncompetitive (at the active site) inhibition
b) Are dependent on temperature and independent of pH
c) Regenerated only in the presence of sodium hydroxide
d) Increase Activation Energy
e) None of the above
11. I have a very tiny space that I need my cell to fit through, would I put my liposome in a
A) isotonic solution
B) saline solution
C) Hypotonic Solution
D) Hypertonic Solution
E) What's a solution?
12. I wanted to target an antibody onto the flagellum of a prokaryote, however the antibody didn't attach. Im I am
confused, I used all the right amino acids and made sure it attaches to tubulin! Why didn't this work?
13. The Inner Mitochondrial Membrane Space is very__ whereas the matrix is ___ in comparison
a) acidic, cold
b) warm, basic
c) basic, acidic
d) acidic, basic
e) a and b
14. Active Transport makes use of
A) ADP
B) Water
C) Oxygen
D) ATP
E) Air
15. A phospholipid bilayer contains phospholipids with
A) A gylcerol head and 2 unsaturated fatty acid tails
B) A serine head and 2 fatty acid tails
C) A glycerol head and 2 saturated fatty acid tails
D) A glycerol head and 2 fatty acid tails, one saturated and one unsaturated
e) A glycerol head and a hydrophilic fatty acid tail
16. I have been infected with a deadly bacteria and I need to get rid of it! Most antibiotics I have tried haven't
worked, something about horizontal gene transfer making the bacteria immune, can you explain that to me? Also I

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directly transfect a virus into the bacterial nucleiod; I’m avoiding any proteases and any molecules that could pump
out my antibiotic. This virus will have the ability to engulf the host DNA. Is this an effective solution? Or should I
transfect a cell suicide signal within the bacterial DNA so cells produced later via_____ will be killed from within?
18. Which of the following does not affect membrane fluidity
a) Saturation of the phospholipid fatty acid tails
b) Temperature
c) Prescence of cholesterol
d) Prescence of peripheral membrane proteins in the membrane
e) All of the above affect membrane fluidity
19. An antibiotic targets the nucleus of a pathogenic virus destroying its genes and rendering it unable to reproduce
Which is not an effective way a bacteria colony could defend themselves?
a) Bind another molecule to the antibiotic to inhibit its function
b) Break down antibiotic using enzymes
c) Restrict the amount of gene mutations to ensure no harmful mutations could occur
d) Use transporters to pump the antibiotic back out of the cell
20. C6H12O6 + 6O2 -> 6CO2 + 6H2O. Identify the molecule being oxidized in cellular respiration.
a) C6H12O6
b) O2
c) CO2
d) H2O
21. Which of the following is false regarding evidence for endosymbiosis theory
a) Mitochondria has its own DNA
b) Organelles are a result of two prokaryotes that had a symbiotic relationship
c) Electron transport should occur at the membrane of the organelle
d) All of the above are true
22. An unknown ion needs to be pumped out of a cell. Outside of the cell this ion is already in high concentration
relative to the low concentration within the cell. What would be a viable method of transportation for the ion?
a) Passive transport
b) Facilitated diffusion
c) Active diffusion
d) Primary active transport
23. What is the product of glycolysis that enters the TCA cycle?
24. Enzymes of TCA cycle are located in the matrix of mitochondria except one which is located in the inner
mitochondrial membrane. Name the enzyme
a) citrate synthase
b) succinate dehydrogenase
c) malate dehydrogenase
d) α ketoglutarate dehydrogenase
25. What is the substrate of Catalase?
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