Ribosomes are organelles responsible for
A. packaging "cell products" for export.
B. energy production.
C. cell movement and cell shape.
D. protein synthesis.
E. manufacturing lipids.
D
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The lateral corticospinal tracts include a ________ of the upper motor neuron axons that pass through the medulla, and they govern control of ___________
A. majority, axial muscles B. majority, muscles used for finely controlled movements C. minority, axial muscles D. minority, muscles used for finely controlled movements
Essential nutrients are those that our cells require but cannot make, and thus they must be present in the diet. Only some amino acids and some fatty acids are essential. What does that suggest about extreme diets that eliminate fats or proteins? What does that suggest about our carbohydrate intake? Describe the typical American diet, in terms of relative amounts of ingested carbohydrates, fats,
proteins, and nucleic acids. Propose some explanations for why one of those is predominant. What will be an ideal response?
The aortic valve prevents backflow of blood from entering the left ventricle during ventricular diastole
Indicate whether the statement is true or false
The adenohypophyseal hormone that triggers ovulation is estrogen
Indicate whether the statement is true or false