Organelles
which organelle is the powerhouse of the cell?
Mitochondria
which type of transport requires ATP to move substances against their gradient?
Active transport
what molecule carries the code from DNA to ribosome?
mRNA
what increases surface area for absorption in small intestine?
Microvilli
what is the first step in glucose breakdown
glycolysis
what are ribosomal subunits assembled?
nucleolus
what does the NA+/K+ pump exchange across the membrane?
3 Na+ out, 2K+ in
which enzyme makes mRNA during transcription?
RNA polymerase
what structure moves mucus along the respiratory tract?
cilia
where does the krebs cycle occur?
Mitochondria matrix
which organelle modifies and packages protein ?
Golgi Apparatus
movement of water across a membrane is called?
osmosis
where does translation occur?
Ribosome in cytoplasm or RER
what is the carbohydrates-rich zone on the cell surface called?
glycocalyx
what stage produces the most ATP?
electron transport chain
which organelle contains hydrolytic enzymes for digestion?
Lysosome
which solution causes a cell to shrink?
Hypertonic
translation reads mRNA in groups of three bases called?
codons
which structure propels a sperm cell?
Flagellum
overall, aerobic respiration requires which gas?
Oxygen (O2)