The Human Body in Health and Disease Chapter 3 (Questions and Answers) Excellent 100% Already Graded A+

The Human Body in Health and Disease Chapter 3 (Questions and Answers) Excellent 100% Already Graded A+ Plasma Membrane - CORRECT ANSWER-a. Forms outer boundary of cell b. Composed of a thin, two-layered membrane of phospholipids containing proteins c. Proteins and other molecules embedded in membrane can function in transport, signaling, self-identification, anchoring of fibers, chemical processing (enzymes), and more Cytoplasm - CORRECT ANSWER-Internal cell fluid and numerous organelles. 1. Ribosomes 2. Endoplasmic Reticulum 3. Golgi apparatus 4. Mitochondria 5. Lysosomes 6. Centrioles 7. Microvilli 8. Cilia 9. Flagella Ribosomes - CORRECT ANSWER-(1) Made of two tiny subunits of mostly ribosomal RNA (2) May attach to rough ER or lie free in cytoplasm (3) Manufacture enzymes and other protein compounds (4) Often called protein factories Endoplasmic Reticulum - CORRECT ANSWER-(1) Network of connecting sacs and canals (2) Carry substances through fluid cytoplasm (3) Two types—rough and smooth (4) Rough ER collects, folds, and transports proteins made by ribosomes (5) Smooth ER synthesizes chemicals; makes new membrane Golgi Apparatus - CORRECT ANSWER-(1) Group of flattened sacs near nucleus (2) Collect chemicals into vesicles that move from the smooth ER outward to plasma membrane (3) Called the chemical processing and packaging center Mitochondria - CORRECT ANSWER-(1) Composed of inner and outer membranous sacs (2) Involved with energy-releasing chemical reactions (3) Often called power plants of the cell (4) Contain one DNA molecule Lysosomes - CORRECT ANSWER-(1) Membranous-walled organelles (2) Contain digestive enzymes (3) Have protective function (engulf and destroy microbes) Centrioles - CORRECT ANSWER-(1) Paired organelles that lie at right angles to each other near the nucleus