A neuron consists of a ______ which comprises of Nucleus and Cytoplasm.
A. Nerve
B. Cell body
C. Nucleus
D. Spinal Cord
Select your answer:
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Cell and Muscle Histology › ViewWith the transmission electron microscope skeletal muscle fibers can be seen to contain structures called triads. What do the two lateral components of a triad represent?
A. Attachment sites for thick myofilaments
B. Sites for calcium sequestration and release
C. Sites for impulse conduction into the fiber
D. Sites for ATP production
E. Sites for synthesis of proteins to be secreted outside the cell
Enzymes and Their Functions › View
Which of the following best describes the induced fit model of enzyme activity?
A. The enzyme’s active site is a perfect fit for the substrate.
B. The enzyme changes its shape to better grab on to and fit the substrate.
C. The substrate changes shape to fit the enzyme’s active site.
D. The enzyme and substrate do not change shape during binding.