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Weeks 1-6
Question | Answer |
---|---|
If oxygen is available, the pyruvate molecules formed by glycolysis are prepared to enter the next phase of aerobic cellular respiration, called the | citric acid cycle. |
Transcription can best be described as the | synthesis of mRNA. |
The component that distinguishes one nucleotide from another is the | nitrogen base. |
A molecule or other agent that alters enzyme function by changing its shape is called a(n) | allosteric effector. |
NaCl would move through the cell membrane in which direction? | Both into and out of the cell |
Which skin layer has cells that look prickly because of the desmosomes that join the cells together? | Stratum spinosum |
The ability of muscle cells to respond to nerve stimuli is called: | irritability. |
Bones grow in diameter due to bone formation ________ | In the endosteum or periosteum |
The human hand has greater dexterity than the forepaw of any animal because of the freely movable joint of the: | thumb. |
The cells responsible for active erosion of bone minerals are called: | osteoclasts. |
According to the sliding filament theory | actin moves past myosin. |
The joint present during the growth years between the epiphyses of a long bone and its diaphysis is the | synchrondrosis. |
Most body movements are _____ contractions. | isotonic |
Which type of muscle is responsible for peristalsis? | Single-unit smooth |
The type of movement that occurs when the head is dropped to the shoulder, then to the chest, to the other shoulder, and toward the back is: | circumduction. |
A gliding joint is an example of a(n) _____ joint. | multiaxial |