Cells Flashcards
Multicellular
Multicellular organisms are organisms that consist of more than one cell, in contrast to unicellular organisms.
Microscope
an optical instrument used for viewing very small objects, such as mineral samples or animal or plant cells, typically magnified several hundred times.
Bacteria
Bacteria constitute a large domain of prokaryotic microorganisms. Typically a few micrometres in length, bacteria have a number of shapes, ranging from spheres to rods and spirals.
Cell membrane
the semipermeable membrane surrounding the cytoplasm of a cell.
Cytoplasm
Cytoplasm is a thick solution that fills each cell and is enclosed by the cell membrane.
Nucleus
the central and most important part of an object, movement, or group, forming the basis for its activity and growth.
Eukaryotic cell
A eukaryote is any organism whose cells contain a nucleus and other organelles enclosed within membranes.
Prokaryotic cell
A prokaryotic cell is a single-celled organism that lacks a membrane-bound nucleus
Organelle
any of a number of organized or specialized structures within a living cell.
Cell wall
A rigid layer of polysaccharides lying outside the plasma membrane of the cells of plants, fungi, and bacteria. In the algae and higher plants, it consists mainly of cellulose.
Chloroplasts
Animal cells do not have chloroplasts. Chloroplasts work to convert light energy of the Sun into sugars that can be used by cells.
Mitochondria
an organelle found in large numbers in most cells, in which the biochemical processes of respiration and energy production occur.
Specialization
A specific organization of a cell and its structure that allows it to preform a specific function.
Tissue
any of the distinct types of material of which animals or plants are made, consisting of specialized cells and their products.
Organ
a part of an organism that is typically self-contained and has a specific vital function, such as the heart or liver in humans.
synonyms.
