Ex 4: Cell Structure and Cell Cycle Flashcards
What does the Plasma Membrane do?
controls movement of substances into and out of the cell
What folds of the plasma membrane that increase the surface area of the cell to increase absorption or secretion?
Microvilli
What contains DNA molecules and nucleous?
Nucleus
What is the assembly site for ribosomes
Nucleous
What are the long thin strands within nucleus. Each stand composed of one DNA molecule and associated proteins.
Chromatin
What is the area of the cell between plasma membrane and nucleus? Includes cytosol and organelles
Cytoplasm
What is the fluid portion of cytoplasm that surrounds organelles?
Cytosol
What makes ATP via aerobic cellular respiration?
Mitochondria
What is the site of protein synthesis?
Ribosomes
What processes and transports proteins made at attached ribosomes; synthesizes phospholipids?
Rough endoplasmic reticulum (RER)
Fatty acid and steroid synthesis; detoxifies toxic substances
Smooth endoplasmic reticulum (SER)
What receives and modifies proteins from RER; sorts and transports them?
Golgi complex
What secretes substances outside the cell by exocytosis?
Secretory vesicles
Where do enzymes digest and recycle work-out organelles and substances entering the cell; can digest the cell
Lysosomes
What produce hydrogen peroxide; detoxify harmful substances?
Peroxisomes