MARAMAG_CELL AND MOLECULAR BIOLOGY QUIZ

1. The coronavirus disease 2019 (COVID-19) is a new disease which is caused by which of the following virus?

• Middle East Respiratory Syndrome-Coronavirus (MERS-CoV)

• Severe Acute Respiratory Syndrome Coronavirus (SARS-CoV)

• Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2)

• Human Immunodeficiency Virus (HIV)

2. Emerson was viewing an organism under a microscope. From his observation, he saw a thread-like structure that moves in a propeller-like motion. What prokaryotic cell structure did Emerson see from the microscope?

• Capsule

• Flagellum

• Nucleoid

• Cytoplasm

3. Which of the following cell organelles is responsible for the production of lipids?

• Smooth endoplasmic reticulum

• Cell membrane

• Golgi Body

• Mitochondrion

4. Which of the following is true about prokaryotic cells?

• Prokaryotic cells are known for having true nuclei.

• Genetic information of these cells is contained in their nucleus.

• These cells can be 5-100 µm in size.

• They existed first compared to eukaryotic cells.

5. During mitosis, spindle fibers form at the opposite poles of the cell. Which of the following cell organelle is responsible for this function?

• Chloroplast

• Centriole

• Nucleus

• Ribosome

6. During photosynthesis, carbon dioxide enters the plant through small openings in the leaf, which in turn, is also where oxygen escapes as a by-product of the food-manufacturing process. What do we call this structure in the leaves of plants?

• Stoma

• Thylakoid

• Granum

• Stroma

7. Light-dependent reaction in photosynthesis requires light energy to break down water molecules into ATP, NADPH, and oxygen. This chemical reaction takes place in which of the following structure of chloroplast?

• Inner membrane

• Intermembrane space

• Thylakoid

• Stroma

8. Which of the following best describes zoonotic viruses like the COVID-19-causing virus?

• They are accidentally developed in virology laboratories.

• They are long-discovered viruses that were re-activated.

• They are viruses that affect animals in particular seasons.

• They are viruses that transferred from animals to humans.

9. Helper T cells are essential in the body's immune response. When attacked, their number decrease resulting to a declined function in fighting off diseases and infection. Which of the following human viruses can do the abovementioned function to the human body?

• Rabies

• HIV

• Ebola

• Influenza

10. Proteins are sorted, processed, and delivered in which of the following membrane-bound cell organelles?

• Golgi body

• Ribosome

• Rough endoplasmic reticulum

• Lysosome