Cell Structure Test MCQ: Quiz!
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How well do you know cell structure? A cell is comprised of three parts. This structure includes the cell membrane, nucleus, and in the middle is the cytoplasm, which is a gel-like fluid inside the cell. There are precise little fine fibers and hundreds or even thousands of microscopic but unmistakable structures called organelles within the cytoplasm. Learning about cell structure can be confusing, but this quiz is here to help. All the best.
- 1.Using the Electron Microscope you study the structures of the cell grown in the rich and minimal media. Compared to the cells grown in the minimal media, the cells grown in the rich media possess much larger versions of a many-layered structure peppered with dark spots. What is the interpretation?
- A.
The cells grown in the rich media have larger mitochondria.
- B.
The cells grown in the minimal media cannot build full sized mitochondria.
- C.
The cells grown in the minimal media have defective Golgi Apparatus
- D.
The cells grown in the rich media produce more proteins within ER.
- E.
The cells grown in rich media have more genes.
- 2.Why are peroxisomes mostly found in kidney and liver cells?
- A.
They oxidise toxic materials
- B.
They contain oxidising agents
- C.
They have reducing agents
- D.
They have 2 and hence carry out 1
- 3.Plating 0.1 ml of a 10-3 dilution of a microbial culture yields 50 colonies. What is the viable count of the original culture?
- A.
5 x 10-3 cells.ml-1.
- B.
5 x 103 cells. ml-1.
- C.
5 x 104 cells. ml-1.
- D.
5 x 105 cells. ml-1
- E.
5 x 10-5 cells. ml-1
- 4.Moderate halophiles would be most likely found in?
- A.
Fresh water
- B.
Cold water
- C.
Hot water
- D.
Sea water
- E.
Bottled water.
- 5.A few bacteria have very waxy envelopes that make them __________ , meaning that, once stained with strong carbon fuchsin dye, they resist decolorisation with acid or alcohol. These include Mycobacterium tuberculosis and Mycobacterium leprae.
- A.
Acid-fast
- B.
Acid-deactivators
- C.
Acid-reactive
- D.
Acid-resistant
- E.
Acid-slow
- 6.Assume you inoculated 100 cells into 100ml of nutrient broth and 100 cells in 200ml of nutrient broth. After incubation for 24hrs, the cultures have entered the stationary phase. You should have:
- A.
More cells per ml in the 100ml
- B.
More cells per ml in the 200ml
- C.
The same number of cells per ml in each
- 7.A culture medium on which only gram-positive organisms grow and a yellow halo surrounds Staphylococcus aureus colonies is called a?
- A.
Selective medium
- B.
Differential medium
- C.
Enrichment culture
- D.
A and b
- E.
B and c
- 8.What are the characteristics of viruses?
- A.
Obligate Intracellular parasites of bacteria, plants,animals, fungi and algae
- B.
Nucleic Acid can be DNA or RNA but not both
- C.
Do not independently fulfill the characteristics of life
- D.
Lack enzymes for most of the metabolic processes
- E.
All of the Above
- 9.Which is not matched correctly?
- A.
Helical Virus - TMV, Influenza
- B.
Enveloped Virus - Pox Virus, Herpes Virus
- C.
Non Enveloped Virus - Adeno Virus, Idino Virus, Papo Virus, Parvo Virus
- D.
Enveloped RNA Virus - Retro Virus, Paramyxovirus, Corona Virus
- E.
None of The Above
- 10.Action of Antibiotics
- A.
Aminoglycosides - Inhibits protein Synthesis of Gram (-) Bacteria
- B.
Cephalosporins - Inhibits protein Synthesis of wide range of Bacteria
- C.
Fluoroquinolones - Inhibits RNA & DNA Synthesis of Gram (-) Bacteria
- D.
Macrolides - Inhibits Protein Synthesis
- E.
All of the Above Match
Questions: 13 | Attempts: 4312 | Last updated: Mar 22, 2022
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