Questions And Correct Answers
What is the function of the myelin sheath for a nerve cell ? - ✔✔✔✔Insulation
When an organism with an unknown genotype is crossed with another organism displaying the recessive
trait (aa), the punnet square shown above illustrates the outcomes. What is the unknown genotype ? -
✔✔✔✔Aa
Where is genetic information that describes the characteristics of an organism found ? - ✔✔✔✔Nuclei
Which of the following is a component of the integumentary system that secretes pheromones ? -
✔✔✔✔Apocrine glands
Which class of biological molecules includes enzymes - ✔✔✔✔Proteins
Which of the following structures is an exocrine gland ? - ✔✔✔✔Parotid gland
Which of the following atoms is most likely to become a cation ? - ✔✔✔✔Potassium, atomic number 19
Which of the following cells transfer pigment granules to adjust epidermal cells ? - ✔✔✔✔Melanocytes
Where does fertilization of an egg cells typically occur ? - ✔✔✔✔Fallopian tube
Which of the following pathways best represents the flow of blood from the human heart to organs? -
✔✔✔✔Blood pumped from the heart first enters arteries that then narrow to form arterioles that
deliver blood to capillaries of the organs
Which type of joint is the hip an example of ? - ✔✔✔✔Ball and socket
, Which of the following is an example of a biological macromolecule? - ✔✔✔✔Protein
Which of the following demonstrates a chemical reaction involving water ? - ✔✔✔✔Water produces gas
when reacting with sodium metal
Which component of an atom has relatively little mass that is considered negligible when calcifying the
atomic mass number ? - ✔✔✔✔Electron
Which hormone regulates blood calcium levels ? - ✔✔✔✔parathyroid hormone
Which of the following tissues lines the interior surfaces of the heart ? - ✔✔✔✔Endocardium
Among the following molecules, which one contains the fewest covalent bond ? - ✔✔✔✔Chlorine
molecule (Cl2
Which of the following processes causes most of the carbon dioxide from the blood to move into an
alveoli ? - ✔✔✔✔Diffusion down a concentration gradient
Which of the following tools can be used to measure the turbidity of a liquid by assessing the
transmission of light through the sample ? - ✔✔✔✔Spectrophotometer
Which of the following contains a humans heredity information ? - ✔✔✔✔Chromatin
Which of the following organelles is the site of intracellular digestion ? - ✔✔✔✔Lysosomes
Which of the following types of cells stimulates other immune cells to attack and destroy foreign agents
? - ✔✔✔✔Helper T cells
Which of the following nucleotides is only found in RNA ? - ✔✔✔✔Uracil