Answer: can have more than one nucleus in a cell
Question: Melanocytes and keratinocytes work together in protecting the skin from UV damage when keratinocytes _______.
Answer: accumulate the melanin granules on their superficial portion, forming a UV-blocking pigment layer
Question: The osteon is the functional unit of compact bone.
Answer Choices:
True
False
Answer: True
Question: Which bone contains areas of diaphysis and epiphyses areas, a medullary cavity, is longer than it is wide, and is proportionally more compact than spongy bone?
Answer Choices:
A. Short bone
B. Flat bone
Answer: B. Flat bone
Question: Sudoriferous (sweat) glands are categorized as two distinct types. Which of the following are the two types of sweat glands?
Answer: eccrine and apocrine
Question: Aerobic respiration produces approximately _____ more ATPs per glucose molecule than glycolysis does.
Answer Choices:
12
24
36
48
100
Answer: 36
Question: Which type of epithelial tissue forms the most superficial layer of the skin?
Answer Choices:
Simple squamous epithelium
Simple cuboidal epithelium
Stratified squamous epithelium
Simple columnar epithelium
Answer: Stratified squamous epithelium
Question: Which of the following is an inorganic component of the bone matrix?
Answer Choices:
Collagen
Proteoglycans
Hydroxyapatite
Glycoproteins
Answer: Hydroxyapatite
Question: This type of membrane protein enables cells to catalyze specific chemical reactions at the inner or outer surface of their plasma membrane.
Answer Choices:
receptors
phospholipids
cholesterol
enzymes
ligands
Answer: enzymes
Question: The process of dissolving bone and returning its minerals to the bloodstream is known as resorption.
Answer Choices:
True
False
Answer: True
Question: Which of the following is not one of the major functions of muscles?
Answer Choices:
Movement
Protection
Heat production
Posture
Breathing
Answer: Protection
Question: Epithelial, connective, muscle, and nervous are terms used to describe
Answer Choices:
organs
tissues
cells
organ systems
molecules
Answer: tissues
Question: The neurotransmitter(s) secreted at the motor end plates of skeletal muscles is/are:
Answer Choices:
dopamine.
norepinephrine.
acetylcholine.
Could be any of the above
Answer: acetylcholine.
Question: The fibula is the major weight-bearing bone of the leg.
Answer Choices:
True
False
Answer: False
Question: Once solid material is phagocytosed and taken into a vacuole, which of the following statements best describes what happens?
Answer Choices:
A. A ribosome enters the vacuole and uses its amino acids in “respiration” to form new proteins.
B. The phagocytosed material is dissolved and the breakdown products enter the cytosol.
C. A lysosome combines with the vacuole and digests the enclosed solid material.
D. The vacuole remains separated from the cytosol and the solid material persists unchanged.
Answer: C. A lysosome combines with the vacuole and digests the enclosed solid material (Marked correct)
Question: The retromandibular is composed of which of the following two bones?
Answer Choices:
A. The maxilla and the ethmoid
B. The lacrimal and the ethmoid
C. The zygomatic and the maxilla
Answer: C. The zygomatic and the maxilla
Question: Which of the following is NOT one of the main tissue types found in the human body?
Answer Choices:
epithelial
connective
hyaline cartilage
muscle
nervous
Answer: hyaline cartilage
Question: The absence or inhibition of acetylcholinesterase at a synapse would lead to which of the following?
Answer Choices:
tetanus
atrophy
numbness
muscle wasting
Answer: tetanus
Question: Which part of the vertebral column receives the most stress by bearing most of the weight of the body?
Answer Choices:
A. The sacral promontory
B. The sacral region
C. The lumbar region
Answer: C. The lumbar region
Question: Peristalsis is characteristic of smooth muscle.
Answer Choices:
True
False
Answer: True
Question: Preparing the body for the “fight-or-flight” response is the role of the
Answer Choices:
A. Sympathetic nervous system.
B. Parasympathetic nervous system.
C. Cerebrum.
D. Somatic nervous system.
Answer: A. Sympathetic nervous system
Question: Flexion of the pelvis so that the superior aspect of the foot approaches the shin is called dorsiflexion.
Answer Choices:
True
False
Answer: True
Question: The extracellular matrix of connective tissue consists of
Answer Choices:
enzymes and membranous organelles.
plasma membranes and ground substance.
keratinized cells and protein fibers.
calcified crystals of minerals and enzymes.
protein fibers and ground substance.
Answer: protein fibers and ground substance.
Question: Which epidermal cell has a role in immunity and disease resistance?
Answer Choices:
Langerhans cells
Keratinocytes
Melanocytes
Tactile epithelial cells (Merkel cells)
Answer: Langerhans cells
Question: Which of the following statements is true?
Answer Choices:
A. Smooth muscle cells lack T tubules.
B. Smooth muscle cells are found in the heart and have large blood vessels.
C. Striated muscle cells are long and cylindrical with many nuclei.
D. Cardiac muscle cells have many nuclei.
Answer: A. Smooth muscle cells lack T tubules.