Ou have discovered a new coccoid-shaped microorganism with no nucleus, a rigid cell wall, and a diameter of 2 μm. chemical tests reveal that its cell wall does not contain peptidoglycan. the new microorganism is.

The question is incomplete as it does not have the options which are:

A) most likely a bacterium.

B) most likely a eukaryote.

C) most likely an archaeon.

D) either a bacterium or an archaeon

C) most likely an archaeon.

The correct answer will be option-C

Explanation:

Archaea is a domain of micro-organism which is distinct from the prokaryotic bacteria and the eukaryotes.

The domain was separate from the bacteria on the basis that the micro-organism lack the peptidoglycan layer present in the bacteria and the difference in the RNA.

Since in the given question, the organism shows the characteristics of a bacteria-like coccoid, lack a nucleus but the lack of peptidoglycan layer help determine that the microbe belongs to the Araceae.

Thus, Option-C is the correct answer.

many other transport proteins, often called pumps, move materials against a concentration gradient. active transport drives molecules across a membrane from a region of lower concentration to a region of higher concentration. this process, shown in figure 5.1, uses transport proteins powered by chemi- cal energy.