Which of these cell types can be described as muscle cells that contract rapidly, are rich in glycogen deposits, and depend on anaerobic respiration to produce ATP?
A) slow-twitch cells B) myoglobin C) fast-twitch cells D) hemoglobin
Answer: C
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The overall charge of a water molecule is ________
a. slightly negative b. slightly positive c. neutral d. a full negative charge
Rotifers take their name from ____
a. their tumbling movements through the water b. actions of cilia on their head c. their radial symmetry d. their elaborate digestive system e. rotational action around the central body axis
This microscope achieves the highest magnification and greatest resolution.
A) Compound light microscope B) Phase-contrast microscope C) Darkfield microscope D) Fluorescence microscope E) Electron microscope
In the sliding filament model of muscle contraction, I bands contain
A) thick filaments. B) thin filaments. C) myosin II. D) myomesin. E) both thick and thin filaments.