Unit 4 cells to organisms
Unit 4 cells to organisms
Parts of a cell/ words to know
the semipermeable membrane surrounding the cytoplasm of a cell.
a dense organelle present in most eukaryotic cells, typically a single rounded structure bounded by a double membrane, containing the genetic material.
the material of which the chromosomes of organisms other than bacteria (i.e., eukaryotes) are composed. It consists of protein, RNA, and DNA.
the material or protoplasm within a living cell, excluding the nucleus.
any of a number of organized or specialized structures within a living cell.
a network of membranous tubules within the cytoplasm of a eukaryotic cell, continuous with the nuclear membrane. It usually has ribosomes attached and is involved in protein and lipid synthesis.
a minute particle consisting of RNA and associated proteins, found in large numbers in the cytoplasm of living cells. They bind messenger RNA and transfer RNA to synthesize polypeptides and proteins.
a complex of vesicles and folded membranes within the cytoplasm of most eukaryotic cells, involved in secretion and intracellular transport.
an organelle found in large numbers in most cells, in which the biochemical processes of respiration and energy production occur. It has a double membrane, the inner layer being folded inward to form layers (cristae).
an organelle in the cytoplasm of eukaryotic cells containing degradative enzymes enclosed in a membrane.
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.
any of the distinct types of material of which animals or plants are made, consisting of specialized cells and their products.
a part of an organism that is typically self-contained and has a specific vital function, such as the heart or liver in humans.
(in green plant cells) a plastid that contains chlorophyll and in which photosynthesis takes place.
a minute opening in a surface, especially the skin or integument of an organism, through which gases, liquids, or microscopic particles can pass.
a double membrane enclosing a cell nucleus and having its outer part continuous with the endoplasmic reticulum — called also nuclear envelope; see cell illustration. First Known Use: 1852.
Nuclear Membrane | Definition of Nuclear
No membrane around it's nucular material and form pond scum.
This cell has a nuculus with a membrane.
Eukaryotic- This cell works inside a cell membrane and performs many different functions.
Eukaryotic-This cell has a ridged cell wall, and is made up of bundles of tough cellulose fibers and other materials. Plant cells can also make their own food by the process of photosynthesis which is a trait that differs from an animal cell
Prokaryotic- has a single chromosone. There are no nuclei in bacteria, but they do contain ribsomes.
The activities in these cells might be compared to a 24 hour opperating buisness that makes dozens of products. Similar to how a buisness operates in a building, this cell operates in a membrane structure. Materials that are needed to make specific products are brought into the building. Finished products are often moved out. Similarly, nutrients are absorbed into the cell and waste products are released.