Ian is looking at cells using a microscope. he sees a nucleus and a large vacuole in the central area of a cell. what type of cell is he most likely looking at? a)prokaryotic cell b)plant cell c)white blood cell d)animal cell

Ans.

The plant cells are eukaryotic cells, in which membrane-bound organelles, such as nucleus, mitochondria, and chloroplasts are present. Plant cells also possess large central vacuoles that function in storage of nutrients.

Prokaryotic cells lack membrane-bound organelles, such as nucleus and central vacuole is absent in animal cells, such as blood cells.

As cell described in question has nucleus and a large central vacuole, it represents a plant cell. Thus, the correct answer is option (b).

an active site is a region that is present on an enzyme where the reactants or the substrate molecules we can say bind and experience a chemical reaction. the substrate is basically a reactant whose concentration is changing and that is converting into a product after binding at the active site of an enzyme