1.2 Eukaryoric Cells Flashcards
in biology, the smallest unit that can perform all of the processes; cells are covered by a membrane and have DNA and cytoplasm
cell
a rigid structure that surrounds the cell membrane and provides support to the cell
cell wall
what cell walls of plants and algae are made of; complex sugar that most animals can’t digest
cellulose
fungi cell walls are made of this
chitin
a protective barrier that encloses a cell
cell membrane
a web of proteins in the cytoplasm
cytoskeleton
large organelle in the eukaryotic cell that contains DNA and is the control center of the cell
nucleus
dark area in the nucleus where the cell begins to make ribosomes
nucleolus
cell organelle composed of RNA and protein; the site of protein synthesis; amino acids are hooked together to make proteins
ribosome
the organellethat is a system of folded membranes that makes lipids, breaks down drugs and other substances, and packages proteins for the Golgi complex
endoplasmic reticulum
any one of 20 different organic molecules that are used to make proteins
amino acids
the organelle that breaks down food (sugar) molecules to make ATP (makes energy)
mitochondria
cell organelle that helps make and package materials to be transported out of the cell
Golgi complex
a small cavity or sac that contains materials in a eukaryotic cell (moves materials in a cell)
vescicle
the organelle that digests food articles, wastes, cell parts, and foreign invaders (contains digestive enzymes)
lysosome
a group of compounds that do not dissolve in water (control the movement in a cell)
lipids
a lipid that contains phosphorus
phospholipid
water fearing; lipids are this
hydrophobic
water loving; phospholipids are this (outer part of the membrane)
hydrophilic
a process where plants and algae use sunlight, carbon dioxide, and water to make sugar and oxygen
photosynthesis
chloroplasts are green because of this, a green pigment (traps sunlight and uses it to make sugar for the plant cell)
chlorophyll
organelles in plant and algae cells in which photosynthesis takes place
chloroplast
an organelle that stores water and other materials (bigger in a plant cell because plants make their own food)
vacuole