1. What are the three types of salivary glands and where are they located in the mouth? ANS: - Parotid,
sublingual, and submandibular glands located in the roof of the mouth, cheeks, and under the jawbone,
respectively.
1. Which of the following substances is excreted by the kidneys to regulate blood pressure? ANS: -
Renin
1. What is the chemical formula for water? ANS: - H20
1. Which of the following units is used to indicate length? ANS: M
researcher collects data on the number of cars passing through a busy intersection at different times of
the day for a month. This data would be most useful to analyze which of the following: ANS: - traffic
patterns during rush hour
1. What is the largest organ in the human body by surface area? ANS: - Skin
1. Which of the following describes the function of ligaments? ANS: - Ligaments attach two bones
1. What is the difference between innate and adaptive immunity? ANS: - Innate immunity is present at
birth while adaptive immunity is acquired after exposure to pathogens.
1. Which of the following is responsible for carrying amino acids to ribosomes during protein synthesis?
ANS: - tRNA
1. What are the steps involved in the scientific method? ANS: - Observation, hypothesis, prediction,
experimentation, analysis, conclusion.
,1. What is the difference between a solid and a liquid? ANS: - Solids have a definite shape and volume
while liquids have a definite volume but no fixed shape.
1. Which part of the respiratory system is responsible for regulating breathing rate and depth? ANS: -
Diaphragm
1. What is the difference between a monosaccharide and a disaccharide? ANS: - Monosaccharides are
simple sugars that cannot be further broken down into simpler sugars while disaccharides are composed
of two simple sugars.
1. Which of the following is the process by which DNA is copied into RNA? ANS: - Transcription
1. What is the role of calcium in muscle contraction? ANS: - Calcium is released from the sarcoplasmic
reticulum to initiate the sliding of actin and myosin filaments.
1. What is the name of the dome-shaped muscle that plays a key role in breathing? ANS: - Diaphragm
1. What is the role of the epididymis in sperm maturation? ANS: - The epididymis stores and protects
sperm cells until ejaculation.
1. Which of the following is a function of the respiratory system? ANS: - Exchange of gases between the
body and the environment
1. What is the difference between isotonic and isometric muscle contractions? ANS: - Isotonic
contractions produce movement while isometric contractions produce no movement.
Which of the following is a characteristic of innate immunity ANS: - It provides immediate, non-specific
protection.
, 1. Which of the following is NOT one of the four primary tissue types found in the human body? ANS: -
Exocrine glandular
1. Which of the following is a type of genetic mutation that involves the insertion or deletion of one or
more nucleotides in a DNA sequence? ANS: - Frameshift mutation
1. Which of the following describes the process of osmosis? ANS: - Movement of water molecules from
an area of high concentration to an area of low concentration through a selectively permeable
membrane.
1. Which of the following is a chemical property of a substance? ANS: - Reactivity with acid
1. Which statement best defines the difference between a physical change and a chemical change?
ANS: - A physical change involves the rearrangement of atoms and molecules while a chemical change
involves the formation of new substances with different chemical properties.
1. During embryonic development, which of the following germ layers forms the nervous system? ANS:
- Ectoderm
1. What is the primary pigment responsible for photosynthesis in plants? ANS: - Chlorophyll a
1. Which of the following is an example of an exothermic reaction? ANS: - Burning wood
1. Which of the following statements is true regarding vaccines? ANS: - Vaccines work by exposing the
individual to a weakened or inactivated form of the pathogen
1. What is the function of ribosomes in a cell? ANS: - To synthesize proteins in the cell