NAS 2 Challenge Exam TCC Questions With Answers (Verified And Answers)

NAS 2 Challenge Exam TCC Questions With Answers (Verified And Answers) Nucleus - answerbrain of the cell, directs cell activity and contains chromosomes made of DNA Endoplasmic Reticulum - answer"intracellular highway", transports items around the cell, creates lipids of fat Lysosome - answerAn organelle containing digestive enzymes Cytoplasm - answerA jellylike fluid inside the cell in which the organelles are suspended golgi apparatus - answerA system of membranes that modifies and packages proteins for export by the cell ribosomes - answersite of protein synthesis mitochondria - answerPowerhouse of the cell, organelle that is the site of ATP (energy) production cell membrane function - answer1) keep toxic substances out of cell 2) has receptors that allow molecules to pass between organelles 3) separate vital/incompatible metabolic processes in organelles concentration gradient - answerdifference in the concentration of a substance from one location to another simple diffusion - answerhydrogen bonds form between water molecules and solutes facilitated diffusion - answerMovement of specific molecules across cell membranes through protein channels osmosis - answerDiffusion of water through a selectively permeable membrane active transport - answerthe movement of ions or molecules across a cell membrane into a region of higher concentration, assisted by enzymes and requiring energy. endocytosis - answerthe taking in of m