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BIO 446L Practice Exam Questions and Correct Answers
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Lipid synthesis is a function of which organelle? Smooth endoplasmic reticulum If a biopsy found malignant cells in an epithelium, the abnormal cell proliferation would be indicated by an increase in size and/or number of which of the following structures within the cells examined? Golgi apparatus...

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  • August 16, 2024
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  • 2024/2025
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  • Questions & answers

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  • bio 446l practice exam questions and correct answe
  • lipid synthesis is a function of which organelle
  • if a biopsy found malignant cells in an epithelium

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BIO 446L Practice Exam Questions and
Correct Answers
Lipid synthesis is a function of which organelle? ✅Smooth endoplasmic reticulum

If a biopsy found malignant cells in an epithelium, the abnormal cell proliferation would
be indicated by an increase in size and/or number of which of the following structures
within the cells examined? ✅Golgi apparatus

The mechanism by which a bacterium is brought into a cell is called ✅Phagocytosis

All the following are functions of the plasmalemma of a cell EXCEPT one. The
EXCEPTION is: ✅Regulates transport between the cytoplasm and nucleus

Which organelle of the cell would be present in large numbers in cells requiring large
amounts of energy? ✅Mitochondria

Which of the following organelles of the cell initiates packing, concentration and storage
of secretory products by secretory vesicles? ✅Golgi apparatus

Aerobic respiration of a cell occurs in what organelle? ✅Mitochondria

A problem involving a hormone being recognized by a receptor most likely involves:
✅Integral proteins

All the following statements about an epithelium are TRUE EXCEPT ONE. Which one is
the EXCEPTION? ✅Has a limited capacity for cells to divide

Which of the following types of epithelia has all cells attached to the basal lamina, but
not all cells reach the free surface? ✅Pseudostratified columnar

The type of gland which has no duct is the ✅Endocrine gland

A free surface specialization that moves mucous in the trachea is the ✅Cilia

A gland with a long duct most likely would produce what type of secretion? ✅Serous

Which type of gland is associated with a blind sac for a lumen? ✅Acinar

Which of the following types of epithelia allows active and passive movement of
substances (eg. gases) through tissue? ✅Simple squamous

,The cells that line the acinar portion of a gland are most likely to be classified as:
✅Cuboidal epithelial

The type of intercellular junction located adjacent to the apical surface of an epithelial
cell used to seal off the intercellular space from the outside space is a: ✅Zonula
occludens

The term used to describe the connective tissue that an epithelium lining the digestive
tract rests upon is the: ✅Lamina propria

The basal lamina is composed of glycoproteins (laminin and entactin) and ✅Type IV
collagen

A free surface specialization only found on hair cells of the inner ear and in epididymis
of male reproductive system is: ✅Stereocilia

The ground substance of connective tissue is rich in heavily hydrated
glycosaminoglycans, proteoglycans and multiadhesive glycoproteins. An example of a
proteoglycan found in cartilage is: ✅Aggrecan

The connective tissue fiber with the greatest tensile strength is the ✅Collagen fiber

The predominate type of fiber found in the connective tissue deep to the epithelium of
skin is ✅Collagen Type I

The connective tissue cell whose role is to phagocytize debris around a wound is the
✅Macrophage

All of the following are connective tissues EXCEPT ONE. Which one is the
EXCEPTION? ✅Muscle

The predominant type of collagen found in the basal lamina is: ✅Collagen Type IV

The connective tissue cell that promotes an allergic response by releasing chemicals
like histamine is the ✅Mast cell

A 20 year-old female college student presents to your office with a pierced lip. The lip
stud is positioned 1 cm below the medium portion of her inferior lip. The tissue around
the stud is red and appears inflamed. She complains that the area is painful. The
redness most likely reflects increased blood flow in which tissue? ✅Loose connective
tissue

The largest and most unique GAG (glycoaminoglycan) is: ✅Hyaluronic acid
(hyaluronan)

, All the following statements about fibroblasts are true EXCEPT ONE. Which statement
is the EXCEPTION? ✅Frequently undergo mitosis in adults

The ground substance of connective tissue is rich in heavily hydrated complex mixture
of macromolecules. All the following are examples of such complex mixtures of
macromolecules EXCEPT ONE. Which one is the EXCEPTION? ✅Acetylcholine

Which type of adipose tissue has cells with multiple droplets of fat? ✅Brown

The type of adipose tissue that has adipocytes with a single lipid drop and a nucleus
displaced to the plasma membrane is ✅White adipose

The type of fat whose primary role is heat generation is ✅Brown

The hormone secreted by adipocytes that binds to receptors in the brain indicating
satiety is: ✅Leptin

The primary proteoglycan in cartilage is ✅Aggrecan

The type of cartilage that has the fewest number of chondrocytes is: ✅Fibrocartilage

The type of cartilage that is found in areas of high stress (e.g., the pubic symphysis) is:
✅Fibrocartilage

Resistance to both compression and shear forces is best met via ✅Fibrocartilage

Hyaline cartilage is composed of an extracellular matrix that contains which type of
collagen? ✅Type II collagen

The patient complains that the roof of his mouth is burned and hurts. He notes that he
was very hungry after playing touch football with his friends. After he gulped a couple of
cold beers down, he also quickly consumed a piece of very hot pizza. Oral examination
indicates the patient has a large second degree burn blister approximately 3 cm in
diameter on the right anterolateral hard palate. Bilateral smaller burn blisters are also
present on the anterolateral dorsum of the tongue. Further examination indicates
inflammation of the superior labial mucosa. Patient notes he cannot taste food as well
due to the injury. Diagnosis: Pizza Burn
The epithelial cells that are blistered primarily contain what intermediate fibers?
✅Keratin

The inflammatory reaction to the tissue injury results in an influx of transient connective
tissue cells. Which of the following cells is a transient cell? ✅Leukocyte

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