Question

Select the mismatch
A. Protists - Eukaryotes
B. Methanogens - Prokaryotes
C. Gas vacuoles – Green bacteria
D. Large central vacuoles – Animal cells

Answer 1

Cell: It is the basic functional and structural unit of the life found in living organisms.
We have two kinds of cells:
1. Eukaryotic cells
2. Prokaryotic cells.
An organism which consists of a single cell is known as a unicellular organism.
An organism which consists of multiple cells is known as multicellular organism.

Complete answer:
A prokaryotic cell consists of:
1. Bacteria
2. Blue green algae
3. Mycoplasma
4. Pleuropneumonia-like organism.
These prokaryotic cells are smaller in size and multiple faster than eukaryotic cells.
A eukaryotic cells consists of
1. Plants
2. Animals
3. Protista
4. Fungi
These cells possess a well developed nucleus with a proper nuclear envelope.
The genetic materials are organized in chromosomes.
Protists are diverse eukaryotic organisms and belong to the third domain Eukarya.
Protista contain well developed nucleus and other cell organelles.
Protists can reproduce by asexual and sexual reproduction Methanogens are prokaryotic anaerobes that produce methane gas and belong to domain Archea.
Methanogens are present in the gut of various ruminant animals such as cows, buffaloes.
Gas vacuoles are aggregates of gas vesicles and are found in green bacteria to impart buoyancy.
The presence of large central vacuole is characteristic of plant cells while animal cells have multiple small vacuoles.

So, the correct option is option D. Large central vacuoles – Animal cells.

Note:
As we know that eukaryotic cells consist of protista, plants, animals and fungi.
All eukaryotic cells are not the same or identical to each other.
Plant and animal cells are different from each other due to various features like
1. Cell wall: plants possess cell wall whereas animal cell lacks cell wall
2. Plastids: Plant cells contain plastids whereas animal cell lacks plastids
3. Centrioles: Animal cells contain this whereas plant cells lack.