Cells Flashcards
Cell membranes are composed of what?
phospholipids
___________ are complex molecules within the cell with their own membranes
organelles
What synthesizes proteins from amino acids in the cell, and can be found in the rough endoplasmic reticulum?
ribosomes
What sits near the nucleus and consists of layers of membranes? It synthesizes materials to be transported out of the cell
golgi complex
Microtubules consist of _______ that help support cell
proteins
The endoplasmic reticulum is a ________ system that is fused to the nucleus
transport
What controls cell growth and death?
mitochondria
What contains its own DNA that is separate from the nucleus?
mitochondria
What is the main purpose of mitochondria?
cell energy
What digests proteins, fats & carbs, and transports undigested substances to the cell membrane?
lysosomes
What synthesizes RNA?
nucleolus
What adds stiffness and flexibility in the plasma membrane?
cholesterol
Proteins in the cell membrane help give shape, ______________ to other cells and transport molecules
communicate
What controls oxygen, water & ions? It repels like ions and attracts opposites
selective permeability
