animal cell

• Microtubules are protein cylinders that move.
• Organelles are a type of organelle.
• Intermediate filaments are protein fibers that provide stability of shape.
• Actin filaments are protein fibers that play a role in change of shape.
• Centrioles are short cylinders of microtubules of unknown function.
• The nucleolus is a region that produces ribosomes.
• A lysosome is a vesicle that digests macromolecules and even cell parts.
• A vesicle is a small membrane-bounded sac that stores and transports substances.
• Cytoplasm is a semifluid matrix outside the nucleus that contains organelles.
• The nuclear envelope is a double membrane with nuclear pores that encloses the nucleus.
• The endoplasmic reticulum is involved in protein and lipid metabolism.
• The centrosome is a microtubule organizing center that contains a pair of centrioles.
• The nucleus is the command center of the cell.
• Chromatin are diffuse threads containing DNA and protein.
• The nucleolus is a region that produces ribosomes.
• Rough ER is studded with ribosomes that synthesize proteins.
• Smooth ER lacks ribosomes, synthesizes lipid molecules.
• A peroxisome is a vesicle that is involved in fatty acid metabolism.
• Ribosomes are particles that carry out protein synthesis.
• A polyribosome is a string of ribosomes simultaneously synthesizing the same protein.
• A mitochondrion is an organelle that carries out cellular respiration, producing ATP molecules.
• The Golgi apparatus processes, packages, and secretes modified proteins.