EXAM 1 ACTUAL EXAM 2026 FULL
QUESTIONS AND CORRECT ANSWERS
GRADED A+
⩥ Nucleus. Answer: aids in cell division and control of genetic info,
contains DNA (think the egg yolk)
⩥ Ribosomes. Answer: RNA-protein complexes; float freely in
cytoplasm; provide sites for cellular protein synthesis; packages and
modifies protein for transportation and secretion
⩥ Endoplasmic Reticulum (ER). Answer: specializes in the synthesis
and transport of the protein and lipid components of most of the cells
organelles (memory factory)
⩥ Golgi complex. Answer: Organelle that packages and distributes
proteins into vesicles and transports within and outside of cell (refining
plant in cytoplasm; traffic cop- what goes in and out of cytoplasm)
⩥ Lysosomes. Answer: An organelle containing digestive enzymes;
digest and remove wastes, digest debris from dead cells; if ruptured, they
can digest cell contents; autodigestion occurs in starvation
, ⩥ Mitochondria. Answer: Powerhouse of the cell, organelle that is the
site of ATP (energy) production; pathway for metabolism of carbs,
lipids, and amino acids into ATP; to keep the cell alive; can grow and
self-replicate in the cell
⩥ Cytoskeleton. Answer: A network of fibers that holds the cell together,
helps the cell to keep its shape, and aids in movement; "bones and
muscle" of the cell; have cilia to move it on out
⩥ Characteristics of plasma membrane. Answer: made up of lipids and
proteins; the basic component is a bi-layer of lipid molecules that are
responsible for the structural integrity of the membrane
⩥ The _______________ prevents water soluble molecules from
entering cells across the plasma membrane. Answer: Phospholipid layer
⩥ Prokaryote. Answer: unicellular organism lacking a nucleus; contains
NO organelles (include cyanobacteria, bacteria, and rickettsia)
⩥ Eukaryote. Answer: organism whose cells contain a nucleus; "good
nucleus;" larger w/ intracellular anatomy
⩥ cellular receptors. Answer: protein molecules on the plasma
membrane, in the cytoplasm, or in the nucleus that can recognize and
bind with specific smaller molecules called ligands