Question

Cytosis is absent in
(a)Diatoms
(b)Eubacteria
(c)Algae
(d)Plantae

Answer 1

The mechanism of transportation of the movement of large quantities of molecules in and out of the cells is cytosis which is of three types that are endocytosis, exocytosis, and transcytosis.

Complete answer:
Cyclosis is absent in Eubacteria. The transport mechanism of movement of the liquid components is cytosis which includes endocytosis that is inside the cell, exocytosis which is outside the cell, and transcytosis which is throughout the cell. Eubacteria are also known as true bacteria which are single-celled prokaryotic organisms and constitute a wide range of characteristics that are found in various conditions throughout the world. They are enclosed within a cell wall which is made up of peptidoglycan that is a cross-linked chain pattern and gives the wall of the bacteria the strength which is needed to maintain its shape and size during the various changes in the environment. They have a membrane that constitutes cholesterol to enhance the permeability properties of the membrane and increased stiffness of the cell. Some of the species constitute flagella or a projection which is composed of protein filaments that are used by the bacteria for movement and others consist of a pill which are small projections that are present outside the cell and are used for sticking to the surfaces and for the transferring of DNA.

Additional Information: Diatoms: They constitute a major group of algae that are found in oceans and soils of the world and make up the portion of Earth's biomass which are generated in about 20 to 50% of oxygen produced on the planet each year. The cell of the dead diatoms is transported by the trans-Atlantic winds which are made up of a system of freshwater lakes known as bodily depression.
Algae: Algae consist of photosynthetic eukaryotic organisms which include multiple species of distinct clades. They range from unicellular microalgae like chlorella to the diatomaceous multicellular forms such as the giant kelp which is a brown alga and can grow up to 50 meters. They consist of a mostly autotrophic and aquatic organism that lacks distinct cell and tissue types.
Plantae: Plants are photosynthetic eukaryotic organisms which include all living things that are not animals and all algae and fungi that are treated as plants. They get energy from the sunlight by the process of photosynthesis and contain chlorophyll A and B that gives them their green color. Plants can make their food. They are known as autotrophs.
So, the correct answer is 'Eubacteria'.

Note: Eubacteria are capable of producing four generations in 20 minutes under optimal conditions and can survive either in aerobic or anaerobic conditions. Some species metabolize the remains of plants and animals and can be autotrophic or heterotrophic.