Q1. Which of the following is false concerning the Calvin Benson Cycle. A. Utili

Question

Q1. Which of the following is false concerning the Calvin Benson Cycle.

A. Utilizes both NADPH and ATP

B. Requires ribulose bisphophate carboxylase

C. Is responsible for the fixation of carbon dioxide.

D. Oxidize carbons

E. All of the above are true

Q2. Concerning the avian-adapted, highly pathogenic strain of H5N1 (called HPAI A(H5N1), for "highly pathogenic avian influenza virus of type A of subtype H5NI"), which of the following is false:

   A. Cause "avian influenza" or simply "bird flu"

B. Has resulted in death of many millions of chickens and birds

C. Has resulted in recent deaths of many hundred thousands of exposed humans.

D. Endemic in many bird populations.

E. All of the above are true

Q3. Which of the following is mismatched concerning microscopy.

A. SEM: 3D representatio of surface features of cells and other objects, individual components in microbial communities, microbial environmental interactions.

B. Confocal: uses laser light sources to scan differentilly lableded specimens producing 3D images assembled by a computer.

C. Darkfield: can visualize living spirochetes in wetmounts, motility of celss in wet mounts.

D. Differential Interference Phase Contrast: Similar to phase contrast but adds prisms providing additional detail and quasi-3D effect.

E. Limit of resolution human eye (conventional light microscopy): 0.2 mm (2nm)

Q4. Which of the following is the correct decreasing order in resistance to heat and chemicals?

A. Protozoan cysts - prions - endospores - fungi - mycobacteria - lipid viruses - E.Coli

B. Endospores - prions - fungi - mycobacteria - protozoan cysts - E.Coli - lipid viruses

C. Endospores - prions - protozoan cysts - fungi - mycobacteria - lipid viruses - E. Coli

D. Prions - endospores - mycobacteria - protozoan cysts - fungi - E.Coli - lipid viruses

E. Prions - endospores - mycobacteria - fungi - protozoan cysts - lipid viruses - E.Coli

Q5. What is false concerning capnophiles?

A. mammalian cells in culture

B. Neisseria

C. Have a requirement for increased carbon dioxide

D. Hemophilus

E. All of the above are true

Q6. Which of the following is false concerning Biosafety Levels?

A. Requirments for facilities increase from BSL- 1 to BSL- 4

B. PPE increses from BSL- 1 to BSL- 4

C. BSL- 4 agents have no vaccines and treatments and include Ebola and Marburg viruses

D. BSL- 3 agents include Vibrio cholerae, Corynebacterium diphtheriase & Borrelia burdorferi

E. all of the above are true.

Q7. Which of the following would be the most likely and available choice for sterilizing heat labile liquids in different research and teaching labs at a school, while still retaining the materials in a useable state?

A. Membrane filtration

B. Gamma radiation

C. Autoclaving

D. Hot air oven

E. HEPA filter

Q8. In the aerobic metabolism of proteins by chemoheterotrophs (e.g., E.Coli and you)

A. Proteins are broken down into smaller prptides and eventually into amino acids by proteses (peptidases)

B. Certain amino acids may be converted to pyruvate

C. Certain amino acids may be converted to intermediates (e.g. oxaloacetate) of the Krebs cycle.

D. Certain amino acids may be converted to acetyl-CoA

E. All of the above are true.

Q9. Which of the following would be the most effective for sterilizing air in a hospital surgical suite during an operation?

A. Membrane Filtration

B. Ethylene oxide gas

C. Autoclaving

D. HEPA filtration

E. Gamma irradiation

Q10. The "roadblock" to continued oxidation of glucose in fermentations is bypassed through production of fermentation products for the purpose of

A. oxidation of NAD+ back to NADH

B. reduction of NAD+ back to NADH

C. reduction of NADH back to NAD+

D. oxidation of NADH back to NAD+

E. generating additional ATPs beyond that produced by glycolysis.

Q11. Which of the following is used in hand sanitizing soaps purchased from your local HEB?

A. Formaldehyde

B. Glutaraldehyde

C. Triclosan

D. Mercury

E. 5% hypochlorite

Q12. Enteric plating media (e.g., MacMonkey and EMB agars) have which sugar and a pH indicator to distinguish coliforms from non coliforms?

A. Glucose

B. Sucrose

C. Lactose

D. Maltose

E. Fructose

Q13. Normal antimicrobial therapy for active tuberculosis involves:

A. one drug for 10 days

B. two or more drugs for 10 days

C. one drug for at least 6 months

D. three or four drugs for at least 6 months

E. six or more drugs for at least 3 years.

Can you guys help me answer these questions please!!!

Explanation / Answer

The answer to the Q1

Option D - Oxidizes carbons. This is false.

Reason: NADPH is oxidized to NADP+ and CO2 is reduced to glucose.

The answer to the Q2

Option E - all of the above are true

The answer to the Q3

Option E -  Limit of resolution human eye (conventional light microscopy): 0.2 mm (2nm)

Reason: 0.2 mm is equal to 200000 nm (nanometers)

The answer to Q4

Option D - Prions - endospores - mycobacteria - protozoan cysts - fungi - E.Coli - lipid viruses

The answer to Q5

Option E - All of the above are true

Reason: Capnophilic bacteria require increased concentration of carbon dioxide (5% to 10%) and approximately 15% oxygen. Neisseria and Haemophilus are examples of capnophiles.

The answer to Q6

Option D - BSL- 3 agents include Vibrio cholerae, Corynebacterium diphtheriase & Borrelia burdorferi

Reason: all the above mentioned three pathogens belong to BSL 2

The answer to Q7

Option A - Membrane filtration.

Reason: In this technique using synthetic membranes, heat labile liquid substances can be sterilized.

The answer to question 8

Option E - All of the above are true

The answer to question 9

Option D - HEPA filtration.

Reason: While performing an operation, clean air is essential to avoid infection. High-Efficiency Particulate Air filters remove all pathogens and provide sterile air. Hence, it is best suited for sterilizing air while performing an operation.

The answer to question 10

Option D - Oxidation of NADH to NAD+

The answer to question 11

Option C - Triclosan

The answer to question 12

Option C - Lactose

The answer to question 13

Option D -  three or four drugs for at least 6 months?

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