NAS 2 Challenge Exam TCC UPDATED
Exam Questions and CORRECT Answers
Nucleus - CORRECT ANSWER - brain of the cell, directs cell activity and contains
chromosomes made of DNA
Endoplasmic Reticulum - CORRECT ANSWER - "intracellular highway", transports
items around the cell, creates lipids of fat
Lysosome - CORRECT ANSWER - An organelle containing digestive enzymes
Cytoplasm - CORRECT ANSWER - A jellylike fluid inside the cell in which the
organelles are suspended
golgi apparatus - CORRECT ANSWER - A system of membranes that modifies and
packages proteins for export by the cell
ribosomes - CORRECT ANSWER - site of protein synthesis
mitochondria - CORRECT ANSWER - Powerhouse of the cell, organelle that is the site of
ATP (energy) production
cell membrane function - CORRECT ANSWER - 1) 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 - CORRECT ANSWER - difference in the concentration of a
substance from one location to another
Exam Questions and CORRECT Answers
Nucleus - CORRECT ANSWER - brain of the cell, directs cell activity and contains
chromosomes made of DNA
Endoplasmic Reticulum - CORRECT ANSWER - "intracellular highway", transports
items around the cell, creates lipids of fat
Lysosome - CORRECT ANSWER - An organelle containing digestive enzymes
Cytoplasm - CORRECT ANSWER - A jellylike fluid inside the cell in which the
organelles are suspended
golgi apparatus - CORRECT ANSWER - A system of membranes that modifies and
packages proteins for export by the cell
ribosomes - CORRECT ANSWER - site of protein synthesis
mitochondria - CORRECT ANSWER - Powerhouse of the cell, organelle that is the site of
ATP (energy) production
cell membrane function - CORRECT ANSWER - 1) 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 - CORRECT ANSWER - difference in the concentration of a
substance from one location to another
