Which of the following Scientific investigations may use a compound light microscope?

A. Detective presence or absence of a nucleus large organelle and cells of unknown origin.

B. Determine the diversity of microbes and lagoon to monitor recovery after pollution.

C. Decipher weather snakes detect their prey through sound, smell, light, touch or a combination of senses.

D. Identify red blood cells in a patient suspected to have sickle cell anemia, in which red blood cells are sickle shaped.

E. Examine the corona, or proteins spikes, on the outside of COVID-19 (SARS-CoV-2) virus.



Answer :

Answer:

A compound light microscope is a versatile tool for magnifying small objects, typically up to about 1000 times their actual size. Given the choices, here’s an evaluation of each option regarding the appropriateness of using a compound light microscope:

A. **Detect presence or absence of a nucleus large organelle and cells of unknown origin.**

- Yes, a compound light microscope can be used for this purpose. It is capable of resolving cellular structures such as nuclei and large organelles within cells.

B. **Determine the diversity of microbes and lagoon to monitor recovery after pollution.**

- Yes, a compound light microscope is suitable for observing many types of microbes, such as bacteria and some protists, which are relevant to monitoring ecological recovery.

C. **Decipher whether snakes detect their prey through sound, smell, light, touch or a combination of senses.**

- No, this investigation would not typically require a compound light microscope, as it involves behavioral and sensory studies rather than microscopic observation.

D. **Identify red blood cells in a patient suspected to have sickle cell anemia, in which red blood cells are sickle-shaped.**

- Yes, a compound light microscope can be used to observe the shape of red blood cells and identify sickle cells in a blood sample.

E. **Examine the corona, or protein spikes, on the outside of COVID-19 (SARS-CoV-2) virus.**

- No, the details of viral structures such as protein spikes are too small to be resolved by a compound light microscope. An electron microscope would be required for this purpose.

Thus, the correct options are:

A. **Detect presence or absence of a nucleus large organelle and cells of unknown origin.**

B. **Determine the diversity of microbes and lagoon to monitor recovery after pollution.**

D. **Identify red blood cells in a patient suspected to have sickle cell anemia, in which red blood cells are sickle-shaped.**