Cell Structure Flashcards
(22 cards)
What are characteristics of prokaryotes?
Are primitive cells, and only bacteria are formed from the lack of nucleus, and are membrane bound organelles. contain DNA and ribosomes in the cytoplasm and have a cell membrane and cell wall.
What are the characteristics of eukaryotes?
They contain in nuclear cell membrane, ribosome, and membrane bound organelles, And are everything except bacteria
What’s the function of the cell membrane?
A thin, flexible layer, which regulates movement of materials into and out of the cell
What’s the function of cytoplasm?
Gel like substance, composed, primarily of water that contains dissolved gases in nutrients for chemical reactions and holds the organelles.
What’s the function of the chromatin?
Contains DNA proteins which have been condensed, is found in non-dividing cells and is the form of DNA used for proteins synthesis
What is the function of a chromosome?
Form after DNA replication and are further condensed. Only found in dividing cells. Proteins synthesis cannot occur when the DNA takes this form
What is the function of cilia?
Short hair like, vibrating cellular projections they are found in large numbers on the surface of certain cells can cause currents in the surrounding fluid
What is the function of flagella?
Slender, hair-like structures, which enables some microorganism and sperm to swim
What’s the function of centrioles?
Rod like structures that help during cell division mitosis in most eukaryotic animal cells.
What’s the function of the cytoskeleton
Protein fibers, which make up the cells, skeleton, provide structural support and moves organelles and vesicles throughout the cytoplasm.
What are the function of organelles?
Organelles are subcellular structures that have one or more specific jobs to perform in the cell
What’s the function of ribosomes?
This is the site of protein synthesis proteins can either be structural or functional. They are made of ribosomal RNA and proteins. They’re considered an organelle and are not membrane-bound.
What’s the function of the nucleus?
Stores genetic material (DNA) and controls cellular activities
What’s the function of the nucleoli’s?
Produces ribosomal RNA a sub unit of ribosomes
What’s the function of the nucleoli’s?
Produces ribosomal RNA a sub unit of ribosomes
What is the function of the rough endoplasmic reticulum?
Holds ribosomes that produce proteins and also stores and transports proteins within the cell
What’s the function of the Golgi body apparatus?
Functions as a factory, and which proteins receipt from the ER or further process/modified and sorted for transport to the eventual destinations
What’s the function of chloroplasts?
Produce energy through photosynthesis meaning they convert sunlight into food for the cell
What is the function of the mitochondria?
Is the site of cellular respiration process which converts chemical energy of glucose into a useable form of energy this energy is called ATP.
What is the function of a vacuole?
Our small, membrane-bound sacs store enzymes, nutrients and waste.
What is the function of the vesicles?
Are small membrane-bound sacs used for the transport, export and storage of molecules.
What is the function of a lysosome?
Are spherical vesicles, which contain hydrolytic Enzymes that can break down all kinds of biological molecules. They also act as the waste disposal system of the cell by digesting unwanted materials in the cytoplasm.
