Terms in this set (47)
In which of the following areas does B. Stomach
protein breakdown begin in the human The stomach is the first place in the digestive system in which proteinases are
body? produced.
A) Mouth Carbohydrate digestion starts in the mouth.
B) Stomach Protein breakdown continues in the small intestine, but does not start there.
C) Small intestine Protein is generally digested by the time it enters the large intestine.
D) Large intestine
Which of the following cell types is D. B-cell
responsible for the production of soluble The production of antibodies by B-cells is part of the humoral response to antigens.
antibodies?
Cytotoxic T-cells destroy pathogens and infected cells.
A) Cytotoxic T cell Macropahges ingest and digest both non-self and dead cells.
B) Macrophage cell Helper T-clls help cytotoxic T-cells and other immune cells.
C) Helper T cell
D) B cell
Which of the following organ systems is D. Circulatory
responsible for transporting nutrients, The heart pumping blood through arteries, capillaries, and veins provides the means
wastes, and other substances throughout of transporting substances through the body.
the human body?
A) Respiratory The respiratory system exchanges gases with the outside environment.
B) Immune The immune system protects the body from pathogens.
C) Nervous The nervous system controls the actions of other body systems.
D) Circulatory
Which of the following is characteristic of B. Heterotrophic with a genome stored in
the human organism? DNA
A) Autotrophic with a genome stored in re nutrient molecules (heterotrophic), and human genes are encoded in DNA.
DNA
B) Heterotrophic with a genome stored in
DNA
C) Autotrophic with a genome stored in
RNA
D) Heterotrophic with a genome stored
in RNA
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, Which of the following is the function of D. Filter debris from intracellular spaces
the lymph nodes in mammals? -lymph nodes filter debris, lymphocytes, and pathogens from intracellular fluid.
A) Pump oxygen into tissue spaces
B) Store extra glucose for emergencies -oxygen diffuses into tissues from capillaries of the circulatory system
C) Synthesize hemoglobin for erythrocytes -glucose is stored as glycogen in the liver and muscles of mammals
D) Filter debris from intracellular spaces -hemoglobin is synthesized in the red blood cells
The bands in muscle sarcomere are formed A. Myosin
by actin and which of the following other Myosin contains "heads" that contact actin and pull the actin fibers together in an
proteins? ATP-dependent mechanism that causes muscles to contract.
A) Myosin
B) Dynein
C) Keratin
D) Myofibril
Which of the following structures within a B. Lysosome
human cell is responsible for recycling the Lysosomes are specialized vacuoles containing digestive enzymes.
materials no longer functional or needed
within the cell?
A) Ribosome
B) Lysosome
C) Mitochondrion
D) Nucleolus
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