BIO 270 EXAM 1 JMU HYND EXAM
QUESTIONS AND CORRECT ANSWERS.
VERIFIED 2025/2026.
What are the four primary tissue types? - ANS -muscle
-epithelial
-nervous
-connective
What type of fluid resides within the cell? - ANS -intracellular
What are the two classes of homeostatic control systems? - ANS -intrinsic
-extrinsic
Milk-secreting glands are examples of exocrine glands (T/F) - ANS True
Body systems maintain homeostasis, a dynamic steady state in the internal environment (T/F) -
ANS True
The form of endocytosis where whole cells, like bacteria, are brought in is ... - ANS -
phagocytosis
1 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED.
, Why do most cells in the body require oxygen molecules? - ANS -it accepts electrons from
electron transport chain in the last part of cellular respiration
What two compounds link the citric acid cycle and the electron transport system? - ANS -
NADH
FADH2
How many molecules of ATP are directly generated with each "turn" of the Krebs (citric acid)
cycle? - ANS -one
Secretory vesicles containing the finished protein products bud off the ____________________
and remain in the cytosol, storing the products until signaled to empty. - ANS -golgi complex
Which statement about the plasma membrane is not true? - ANS - serves as mechanical
barrier to hold in contents of cell
- selectively controls movement of molecules between the extracellular fluid and cytoplasm
- ****barrier that surrounds blood vessels and separates blood plasma from interstitial
fluid****
- contains proteins that provides for various membrane functions
NADH is - ANS -produced in glycolysis
-produced in citric acid (Krebs) cycle
Which statement is true? - ANS - mitochondria are primarily sites where anaerobic
respiration occurs
- peroxisomes are membranous sacs that contain digestive enzymes
- ribosomes are organelles that synthesize RNA
2 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED.
QUESTIONS AND CORRECT ANSWERS.
VERIFIED 2025/2026.
What are the four primary tissue types? - ANS -muscle
-epithelial
-nervous
-connective
What type of fluid resides within the cell? - ANS -intracellular
What are the two classes of homeostatic control systems? - ANS -intrinsic
-extrinsic
Milk-secreting glands are examples of exocrine glands (T/F) - ANS True
Body systems maintain homeostasis, a dynamic steady state in the internal environment (T/F) -
ANS True
The form of endocytosis where whole cells, like bacteria, are brought in is ... - ANS -
phagocytosis
1 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED.
, Why do most cells in the body require oxygen molecules? - ANS -it accepts electrons from
electron transport chain in the last part of cellular respiration
What two compounds link the citric acid cycle and the electron transport system? - ANS -
NADH
FADH2
How many molecules of ATP are directly generated with each "turn" of the Krebs (citric acid)
cycle? - ANS -one
Secretory vesicles containing the finished protein products bud off the ____________________
and remain in the cytosol, storing the products until signaled to empty. - ANS -golgi complex
Which statement about the plasma membrane is not true? - ANS - serves as mechanical
barrier to hold in contents of cell
- selectively controls movement of molecules between the extracellular fluid and cytoplasm
- ****barrier that surrounds blood vessels and separates blood plasma from interstitial
fluid****
- contains proteins that provides for various membrane functions
NADH is - ANS -produced in glycolysis
-produced in citric acid (Krebs) cycle
Which statement is true? - ANS - mitochondria are primarily sites where anaerobic
respiration occurs
- peroxisomes are membranous sacs that contain digestive enzymes
- ribosomes are organelles that synthesize RNA
2 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED.
