Answer:
Euglena is a protist and it moves with the aid of structures called flagella
Explanation:
Flagella are known as locomotive cells which propels from the body parts of organisms . They are made of protein structures and formed in a helical manner.
They are whip like structures and usually helps in the movement of the protists through liquid surfaces through the whip like movement of the flagella.
Answer:
Mitochondria are double membrane bound cytoplasmic organelles present in most eukaryotic cells. They are responsible for aerobic respiration.
Explanation:
Prokaryotic organisms fall under the Archaea and Bacteria domains. Prokaryotic organisms lack cell organelles and a distinct nucleus.
Prokaryotes are microscopic organisms from the two of the three main domains of life—Bacteria and Archaea—that are part of the domains of life. (The third eukaryote, eukarya, includes all eukaryotes, such as animals, plants, and fungi.) While the majority of eukaryotes are multicellular, bacteria and archaea are single-celled.
Prokaryotes do not have mitochondria or the majority of the other membrane-bound organelles that make up a eukaryotic cell, in addition to not having a nucleus. Prokaryotic organelles, including bacterial microcompartments, which are thought to be simple organelles enclosed in protein shells, have since been discovered. Previously, it was believed that prokaryotic cellular components within the cytoplasm were unenclosed aside from an outer cell membrane. Some prokaryotes, like cyanobacteria, can form substantial colonies despite being unicellular. Some have multicellular stages in their life cycles, like myxobacteria. Prokaryotes are asexual and do not fuse their gametes during reproduction, though horizontal gene transfer does occur.
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Plasma membrane is the structure which covers up the uptaken molecule.
<h3><u>Explanation:</u></h3>
Uptaking of nutrients from the surrounding needs to be very appropriate for the cell to obtain nutrition, as well as to maintain cell immunity. In case of simpler molecules like glucose etc, the molecules are taken inside the cell by means of specific channels or transport proteins. In case of complex molecules, cells prefer to perform endocytosis - either phagocytosis for solid ones, and pinocytosis for liquid ones.
When the cell finds something which can be taken in, it projects a fold of cell membrane towards the liquid which surrounds part of the liquid, or fully. This cell membrane then presents a depression which covers up the liquid. Then the margins of the depression come closer and ultimately fuse, leaving the liquid inside the cell enclosed with a part of cell membrane. This then fuses with a primary lysozome to form a digestive vacoule, a secondary lysozome, a residual body, and ultimately gets excreted off the cell.
