1. In which of the following areas does protein break- B. Stomach
down begin in the human body ?
A. Mouth
B. Stomach
C. Small intestine
D. Large intestine
2. Which of the following cell types is responsible for D. B cell
the production of soluble antibodies?
A. Cytotoxic T cell
B. Macrophage cell
C. Helper T cell
D. B cell
3. Which of the following organ systems is respon for D. Circulatory
transporting nutrients wastes and other substances
throughout the human body ?
A. Respiratory
B. Immune
C. Nervous
D. Circulatory
4. Which of the following is characteristic of the human B. Heterotrophic
organism ? with a genome
A. Autotrophic with a genome stored in DNA stored in 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
5. Which of the following is the function of the lymph D. Filter debris from
nodes in mammals ? intracellular spaces
A. Pump oxygen into tissue spaces
B. Store extra glucose for emergencies
C. Synthesize hemoglobin for erythrocytes
D. Filter debris from intracellular spaces
6. The bands in muscle sarcomere are formed by actin A. Myosin
and which of the following other proteins?
A. Myosin
, Ati teas 7 practice questions
B. Dynein
C. Keratin
D. Myofibril
7. Which of the following structures within a human B. Lysosome
cell is responsible for recycling the materials no
longer functional or needed within the cell ?
A. Ribosome
B. Lysosome
C. Mitochondrion
D. Nucleolus
8. Which of the following is the correct structure and D. A phospholipid bi-
function of the cell membrane ? layer with embed-
A. A double glycoprotein structure with embedded ded proteins regu-
lipid bodies provides shape and rigidity to the cyto- lates molecules en-
plasm tering and leaving
B. A double layer of phosphate proteins with lipid cytoplasm
channels allows molecules to pass from the inside
to the outside of cells
C. Nonpolar phosphate heads and polar lipid tails
form a bilayer to control the transport of proteins
D. A phospholipid bilayer with embedded proteins
regulates molecules entering and leaving cytoplasm
9. Which of the following chemical compounds pre- B. Surfactant
vents the lungs from collapsing ?
A. Mucus
B. Surfactant
C. Enzymes
D. Buffers
10. Which of these structures diverts food into the A. Uvula
esophagus and prevents it from entering the lungs
? A. Uvula
B. Soft palate
C. Tonsils
D. Epiglottis
11. C. Larynx