It is believed that some eukaryotic organelles originate from prokaryotes. What is some evidence of this?

You are staining a Gram-negative bacterium and forgot the crystal violet step (but continued with the rest of the procedure). What result do you expect at the end of the Gram stain?

What are some problems associated with NTDs?

These tiny intracellular Gram-negative bacteria  are transmitted via arthropods like fleas and ticks. They are the causative agent for Rocky Mountain Spotted Fever and Typhus.

You are staining a Gram-positive bacterium and forgot the mordant step (but continued with the rest of the procedure). What result do you expect at the end of the Gram stain?

This structure is used to classify bacteria into groups.

Which of the following is an important role algae play in the environment?

This NTD is characterized by the swelling of the eyelid known as Romana’s sign. The swelling is due to exposure to bug feces containing the microbe.

You treat eukaryotic cells with a drug that can affect smooth ER function. Which of the following could be observed in these treated cells?

These algae have filaments that contain the pigment chlorophyll and make up pond scum.