Intro To Cells Flashcards
(33 cards)
What are ribosomes?
Cell organelles responsible for protein synthesis.
What is DNA?
The genetic material of the cell.
What is the cell membrane?
The outer boundary of the cell, regulating what enters and exits.
Also known as the plasma membrane.
What is a prokaryote?
A single-celled organism without a nucleus or membrane-bound organelles.
What is a eukaryote?
A cell with a nucleus and membrane-bound organelles.
What are flagella?
Long, whip-like structures used for movement.
What is cytosol?
The gel-like substance inside the cell that contains organelles.
What is a cell wall?
A rigid outer layer found in some cells, providing support and protection.
What is a capsule?
A sticky layer outside the cell wall of some bacteria, used for attachment and protection.
What are membrane-bound organelles?
Structures within a cell that are surrounded by a membrane.
What is the nucleus?
The control center of the cell, containing DNA.
What are cilia?
Short, hair-like structures used for movement.
What are mitochondria?
The ‘powerhouses’ of the cell, producing energy.
What is endocytosis?
The process by which cells take in substances by engulfing them in a vesicle formed from the cell membrane.
What is an endosymbiont?
An organism that lives symbiotically within another organism.
What is endosymbiosis?
The theory that mitochondria and chloroplasts were once free-living prokaryotes that were engulfed by larger cells.
What is a domain in taxonomy?
A taxonomic category above kingdom, consisting of three groups: Bacteria, Archaea, and Eukarya.
What are archaea?
A group of single-celled prokaryotes that live in extreme environments.
What is eukarya?
A group of organisms with eukaryotic cells.
What are eubacteria?
A group of single-celled prokaryotes that are the most common bacteria.
What are archaebacteria?
A group of single-celled prokaryotes that live in extreme environments.
What is the kingdom animalia?
The kingdom of animals.
What is the kingdom plantae?
The kingdom of plants.
What is the kingdom fungi?
The kingdom of fungi.