Question: In which kind of bone would an epiphyseal plate be found?
Answer Options:
a. flat
b. irregular
c. long
d. short
Answer: c. long
Question: Which factor initially stimulates bone growth and is responsible for the burst of growth that occurs at puberty?
Answer Options:
a. growth hormone
b. thyroid hormone
c. sex hormones
d. increased nutrient intake
Answer: c. sex hormones
Question: Which of these characteristics makes skeletal muscle unique from other kinds of muscle?
Answer Options:
a. It can be moved voluntarily.
b. It is composed of cells having a single nucleus.
c. It is capable of spontaneous contraction.
d. It is striated
Answer: a. It can be moved voluntarily.
Question: What percentage of the body’s weight consists of skeletal muscle and its associated connective tissue?
Answer Options:
a. 10
b. 32
c. 40
d. 75
Answer: c. 40
Question: Which of the following muscles produces body heat?
Answer Options:
a. cardiac
b. intercalated
c. skeletal
d. smooth
Answer: c. skeletal
Question: Which of the following is one of the functions of the muscular system?
Answer Options:
a. contraction of the heart
b. protection of organs
c. sending pain signals
d. storage of oxygen
Answer: a. contraction of the heart
Question: What are the four major functional properties of muscle tissue?
Answer Options:
a. communicability, contractility, elasticity, and excitability
b. communicability, conductivity, contractility, and elasticity
c. conductivity, contractility, elasticity, and excitability
d. contractility, elasticity, excitability, and extensibility
Answer: d. contractility, elasticity, excitability, and extensibility
Question: What type of muscle contraction occurs when an object is held up in a stationary position?
Answer Options:
a. concentric
b. eccentric
c. isometric
d. isotonic
Answer: c. isometric
Question: A third-grade teacher notices that their students’ end-of-year state test scores rose dramatically compared to students in different classes. This teacher is:
Answer Options:
a) extrinsically motivated. b) resilient. c) motivated intrinsically. d) a value-added educator.
Answer: d) a value-added educator.
Question: An advocate of Spearman’s g believes:
Answer Options:
a) the IQ measures a basic underlying cognitive ability apparent in all life tasks. b) the IQ is only relevant when children are in school. c) people have unique intellectual talents and skills. d) the IQ only measures academic aptitude.
Answer: a) the IQ measures a basic underlying cognitive ability apparent in all life tasks.
Question: A client recently added 100 users who are using VMs. All users have since reported slow or unresponsive desktops. Reports show minimal network congestion, zero packet loss, and acceptable packet delay. Which of the following metrics will MOST accurately show the underlying performance issues? (Choose two.)
Answer Options:
A. CPU usage
B. Memory
C. Temperature
D. Bandwidth
E. Latency
F. Jitter
Answer: A. CPU usage, B. Memory
Question: Client devices cannot enter a network, and the network administrator determines the DHCP scope is exhausted. The administrator wants to avoid creating a new DHCP pool. Which of the following can the administrator perform to resolve the issue?
Answer Options:
A. Install load balancers
B. Install more switches
C. Decrease the number of VLANs
D. Reduce the lease time
Answer: D. Reduce the lease time
Question: Which brain defense restricts substances from entering the brain via the vascular system?
Answer Options:
a. Macrophages, b. Microglia, c. Blood-brain barrier, d. Meninges, e. Cranium
Answer: c. Blood-brain barrier
Question: The organism responsible for the majority of neonatal meningitis is ______.
Answer Options:
a. Neisseria meningitidis, b. Listeria monocytogenes, c. Streptococcus agalactiae, d. Escherichia coli K1, e. Haemophilus influenzae
Answer: c. Streptococcus agalactiae
Question: Cryptococcus neoformans is a ______.
Answer Options:
a. prion, b. gram-positive bacterium, c. fungus, d. gram-negative bacterium
Answer: c. fungus
Question: The fibrous sac that encloses the heart is the ______.
Answer Options:
a. endocardium, b. epicardium, c. myocardium, d. pericardium, e. ectocardium
Answer: d. pericardium
Question: After a Drug Enforcement Agency raid on a location that housed intravenous drug users, several were brought to the hospital with rapid breathing, fever, and an altered mental state.
Answer Options:
a. Many drug users are HIV-positive, so the patients should all be monitored for levels of CD4 T-cells before any other action is taken, b. Unsanitary conditions in the house probably resulted in infestations with insects, so it’s prudent to examine them for insect bites that may provide a clue, c. Stained blood smears should be performed promptly to look for abnormalities in the blood cells, d. A broad-spectrum antibiotic is needed promptly, as they are likely to be in septic shock from intravenous introduction of microbes into the blood.
Answer: d. A broad-spectrum antibiotic is needed promptly, as they are likely to be in septic shock from intravenous introduction of microbes into the blood.
Question: The white-footed mouse, deer, and deer ticks are important to maintaining the zoonotic transmission cycle associated with ______.
Answer Options:
a. babesiosis, b. plague, c. Rocky Mountain spotted fever, d. Q fever, e. Lyme disease
Answer: e. Lyme disease
Question: A common cardiovascular/lymphatic system disease in AIDS patients is ______.
Answer Options:
a. cytomegalovirus, b. Burkitt’s lymphoma, c. ehrlichiosis, d. acute endocarditis, e. brucellosis
Answer: a. cytomegalovirus
Question: Several infections of the cardiovascular system can be identified by inspecting a stained blood smear in the microscope. For the following infections, identify the microscope observation that does not fit the disease.
Answer Options:
a. Malaria; ring trophozoites visible inside red blood cells, b. Chagas disease; protozoan visible amongblood cells, c. Babesiosis; protozoan visible inside red blood cells, d. Epstein-Barr virus; virus visible inside red blood cells
Answer: d. Epstein-Barr virus; virus visible inside red blood cells
Question: Mycobacterium tuberculosis _______.
Answer Options:
a. integrates its genome into host cell DNA, b. lives in the soil, c. can survive for 8 months in fine aerosol particles, d. has a capsule, e. produces several virulence factor enzymes and an exotoxin
Answer: c. can survive for 8 months in fine aerosol particles
Question: The enzyme associated with the influenza virus that hydrolyzes the protective mucous coating of the respiratory tract is ______.
Answer Options:
a. kinase, b. neuraminidase, c. reverse transcriptase, d. hyaluronidase, e. catalase
Answer: b. neuraminidase
Question: What features of the respiratory system protect it from infection?
Answer Options:
a. Macrophages, b. All of the choicesare correct., c. Mucus, d. Nasal hairs, e. Cilia
Answer: b. All of the choicesare correct.
Question: Formation of a pseudomembrane in the back of the throat is seen in cases of _______.
Answer Options:
a. tuberculosis, b. diphtheria, c. pertussis, d. SARS, e. pharyngitis
Answer: b. diphtheria
Question: Identification of the causative microbe for a diarrheal infection often requires a stool culture. The best medium for this purpose is _______.
Answer Options:
a. a medium containing bile as a selective agent, b. a liquid medium, as the diarrhea conditions are more liquid than solid, c. a medium containing mammalian blood to provide extra growth factors, d. a medium containing a broad-spectrum antibiotic as a selective agent, e. a general purpose medium that supports the growth of the diverse gut microbiota
Answer: a. a medium containing bile as a selective agent
Question: Which of the following is not a virulence factor associated with helminths?
Answer Options:
a. Secretion of toxins, b. Thick cuticle to escape detection from thehost immune system, c. Specialized structures for attachment to host tissues, d. Degradative enzymes to damage host tissue
Answer: a. Secretion of toxins