The long, cylindrical, contractile portions of a muscle fiber, which are composed of even smaller myofilaments, are called ___________________
a. myofibrils
b. sarcolemmas
c. myofilaments
d. sarcomeres
Answer: a. myofibrils
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The reproductive organ in the human female that is responsible for egg production is the ____
a. uterus b. ovary c. vagina d. clitoris e. oviduct
Answer the following statements true (T) or false (F)
1. All sugars are absorbed via secondary active transport. 2. In omnivores, including humans, the cecum is an important organ for digestion of cellulose. 3. Fat absorbed by the small intestine enters the lymphatic system. 4. Frugivores are a type of herbivore.
Which of the following most accurately describes the
cellular activity associated with the actual passage of a nerve impulse? a. electrical discharge b. action of sodium-potassium pump c. wave of depolarization and repolarization d. hyperpolarization followed by rebalancing e. active transport of ions
_________________ is a chronic liver disease usually caused by poor nutrition and excessive alcohol consumption.
Fill in the blank(s) with the appropriate word(s).