The dark band of skeletal muscle consists of ________
A) both thick and thin filaments B) only thick filaments
C) only thin filaments D) T tubules
Answer: A
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Which type of chronic obstructive pulmonary disease is characterized by inflammation from smoking cigarettes?
a. asthma b. chronic bronchitis c. emphysema d. two of these answers. e. all of these answers.
Many health food stores carry enzyme preparations that are intended to be ingested orally (by mouth) to supplement existing enzymes in various organs such as the liver, heart, and muscle. Use your knowledge of the digestion process to explain why these preparations are unlikely to be effective as advertised
What will be an ideal response?
Which biological catalyst lowers the activation energy of a reaction?
A) salt B) enzyme C) carbohydrate D) lipid
What process lowers blood plasma levels of cholesterol-containing lipoproteins?
A. second messenger-activated, sterol transgenesis B. hydrophobic phagocytosis C. simple, transcellular membrane diffusion D. Na+ gradient-dependent, secondary active transport E. clathrin-dependent, receptor-mediated endocytosis