Cell Flashcards
What is a Cell?
it is the smallest unit that can perform all life possess
What is Nucleus?
in a ekaryotic cell a membrane-bound orangele that contains the cell’s DNA and that has a role in process such as growth, metabolism and reproduction
what is Cell membrane
a phospholipid layer that covers a cell’s surface; acts as a barrier between the inside of a cell and the cells’s enviroment
what is Prokaryote
are singled celled organisms that do not have a nucleus or membrane bound orangelles.
what is Cytoplasm?
a thick solution that fills each cell and is enclosed by the cell membrane.
what is 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.
what is Mitochondria / Mitochondrion
A mitochondrion is a double-membrane-bound organelle found in most eukaryotic organisms. Mitochondria generate most of the cell’s supply of adenosine triphosphate, used as a source of chemical energy
what is Chloroplast
a plastid that contains chlorophyll and in which photosynthesis takes place.
what is Golgi complex
transporting, modifying, and packaging proteins and lipids into vesicles for delivery to targeted destinations
what is Endoplasmic reticulum
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
what is Ribosome
Ribosomes are macromolecular machines, found within all living cells, that perform biological protein synthesis.
what is Lysosome
Lysosomes are membrane-bound organelles with roles in processes involved in degrading and recycling cellular waste, cellular signalling and energy metabolism
what is Vacuole
A vacuole is a membrane-bound organelle which is present in plant and fungal cells and some protist, animal, and bacterial cells.
what is Organelle
subcellular structure that has one or more specific jobs to perform in the cell, much like an organ does in the body
what is Eukaryote
any cell or organism that possesses a clearly defined nucleus.
what is Tissue
a group of cells that have similar structure and that function together as a unit
what is Organ
a self-contained group of tissues that performs a specific function in the body
what is Organ system
An organ system is a group of organs that work together to perform one or more functions. Each organ has a specialized role in a plant or animal body, and is made up of distinct tissues
What is Organism
an individual animal, plant, or single-celled life form.
what is Structure
y) An arrangement or organization of parts to form an organ, system, or living thing.
