Nas 2 TCC Actual Exam Newest 2025/2026
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Nucleus - . . ANSWER ✔ ✔brain 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 - . . ANSWER ✔ ✔An organelle containing
digestive enzymes
Cytoplasm - . . ANSWER ✔ ✔A jellylike fluid inside the
cell in which the organelles are suspended
golgi apparatus - . . ANSWER ✔ ✔A system of
membranes that modifies and packages proteins for export
by the cell
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ribosomes - . . ANSWER ✔ ✔site of protein synthesis
mitochondria - . . ANSWER ✔ ✔Powerhouse of the cell,
organelle that is the site of ATP (energy) production
cell membrane function - . . 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 - . . ANSWER ✔ ✔difference in
the concentration of a substance from one location to
another
simple diffusion - . . ANSWER ✔ ✔hydrogen bonds
form between water molecules and solutes
facilitated diffusion - . . ANSWER ✔ ✔Movement of
specific molecules across cell membranes through protein
channels
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osmosis - . . ANSWER ✔ ✔Diffusion of water through a
selectively permeable membrane
active transport - . . ANSWER ✔ ✔the movement of
ions or molecules across a cell membrane into a region of
higher concentration, assisted by enzymes and requiring
energy.
endocytosis - . . ANSWER ✔ ✔the taking in of matter
by a living cell by invagination of its membrane to form a
vacuole.
exocytosis - . . ANSWER ✔ ✔a process by which the
contents of a cell vacuole are released to the exterior
through fusion of the vacuole membrane with the cell
membrane.
active vs passive transport - . . ANSWER ✔ ✔active
transport requires energy and work, passive transport does
not.
which types of transport require protein? - . . ANSWER
✔ ✔facilitated diffusion and active transport
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Net movement - hypertonic - . . ANSWER ✔
✔increased solute, net movement of water outside
causing cell to shrink
net movement - hypotonic - . . ANSWER ✔ ✔decreased
solute, net movement inside causes cell to swell a break
net movement - isotonic - . . ANSWER ✔ ✔solute
concentrations are the same on both sides so water moves
equally on both sides
stages of the cell cycle - . . ANSWER ✔ ✔G1 (Growth)
S (DNA Synthesis
G2 (Growth + mitosis prep)
M (Mitosis - Cell division)
mitosis - . . ANSWER ✔ ✔2 daughter cells each having
same amount + kind of chromosomes as parent nucleus
chromatin - . . ANSWER ✔ ✔chromosomes of
organisms other than bacteria are made of this