CONNECTIONS EXAM PREP QUESTIONS AND
SOLUTIONS 2026 GRADED A+
◉ Ribosome. Answer: Made of rRNA, synthesizes proteins
◉ Plasma membrane. Answer: A selectively-permeable phospholipid
bilayer forming the boundary of the cells
◉ Smooth ER. Answer: Functions in detoxification and lipid
synthesis
◉ Hydrophobic. Answer: Water fearing
◉ Rough ER. Answer: Associated with ribosomes,
compartmentalizes the cell
◉ Hydrophilic. Answer: water loving
◉ Golgi complex. Answer: Corrects the folding and chemical
modification of newly synthesized proteins, packaging for protein
trafficking
, ◉ Fluid mosaic model. Answer: model that describes that cell
membranes consist of a structural framework of phospholipid
molecules that is embedded with steroids and proteins
◉ Lysosome. Answer: Membrane-enclosed sac that contain
hydrolytic enzymes
◉ Vacuole. Answer: Storage and release of macromolecules and
cellular waste products.
◉ Correct arrangement of phospholipids in bilayer. Answer:
hydrophobic tails pointing toward inside the membrane, hydrophilic
heads pointing out to the extracellular or intracellular space
◉ Bilayer. Answer: a layer that is two molecules thick
◉ Mitochondria. Answer: Provides compartments for different
metabolic reactions.
◉ Phosphate group. Answer: A functional group consisting of a
phosphorus atom covalently bonded to four oxygen atoms