BIO 121 Final Exam practice quizzes
UPDATED ACTUAL Exam Questions and
CORRECT Answers
Which form of endoplasmic reticulum modifies and packages newly synthesized proteins? -
CORRECT ANSWER - rough endoplasmic reticulum
Which of the following is (are) concerned with maintaining calcium balance? - CORRECT
ANSWER - all of the above
Chondrocytes are to cartilage as osteocytes are to - CORRECT ANSWER - bone
The diaphragm separates the ____________ from the ____________. - CORRECT
ANSWER - thoracic cavity; abdominopelvic cavity
Unlike cartilage, bone - CORRECT ANSWER - is highly vascular
The cardiovascular reflexes are based in the - CORRECT ANSWER - medulla oblongata
The dominant fiber type in most dense connective tissue is - CORRECT ANSWER -
collagen
Which of the following bones is not part of the appendicular skeleton? - CORRECT
ANSWER - sacrum
You are given samples of adipose tissue and muscle tissue that have equal volumes. After
weighing the samples, you find the sample of muscle tissue has a greater mass. Which is true of
their densities? - CORRECT ANSWER - muscle tissue has a greater density
,Intercalated discs and striations are characteristic of - CORRECT ANSWER - cardiac
muscle tissue
What level of organization is the smallest living level of organization? - CORRECT
ANSWER - cellular level
Preganglionic neurons of the sympathetic nervous system are located in the - CORRECT
ANSWER - lateral gray horns of segments T1 to L2 of the spinal cord.
As the ________ nerve approaches the knee, it divides into two branches, the common fibular
nerve and the tibial nerve. - CORRECT ANSWER - sciatic
The quadriceps group includes all of the following, except the - CORRECT ANSWER -
biceps femoris
Synaptic vesicles containing neurotransmitters are released via ________ when the action
potential arrives. - CORRECT ANSWER - exocytosis
An increased amount of sodium in the extracellular fluid would lead to: - CORRECT
ANSWER - increase in extracellular fluid volume
Which of the following is not part of the axial division of the skeletal system? - CORRECT
ANSWER - pectoral girdle
The tough horny superficial layer of the epidermis is known as the - CORRECT
ANSWER - stratum corneum
Cells that store fat are called - CORRECT ANSWER - adipocytes
The Roman numeral VIII indicates the ________ nerve. - CORRECT ANSWER -
vestibulocochlear
, The hormone calcitonin functions to - CORRECT ANSWER - decrease the level of
calcium ion in the blood
Ions with a + charge are called - CORRECT ANSWER - cations
The dorsal root of a spinal nerve contains - CORRECT ANSWER - axons of sensory
neurons
Chromosomes consist of - CORRECT ANSWER - DNA and proteins
If a red blood cell is placed in an isotonic solution, the red blood cell will: - CORRECT
ANSWER - remain unchanged
Substrate molecules bind to enzymes at the ________ sites. - CORRECT ANSWER -
active
The plasma membrane is composed of - CORRECT ANSWER - a bilayer of
phospholipids
Action potentials are electrical signals conducted by which part of the neuron? - CORRECT
ANSWER - axons
The energy in the chemical bonds of food is known as: - CORRECT ANSWER - potential
energy
The protein that permits stretching and recoiling of the skin is - CORRECT ANSWER -
elastin
UPDATED ACTUAL Exam Questions and
CORRECT Answers
Which form of endoplasmic reticulum modifies and packages newly synthesized proteins? -
CORRECT ANSWER - rough endoplasmic reticulum
Which of the following is (are) concerned with maintaining calcium balance? - CORRECT
ANSWER - all of the above
Chondrocytes are to cartilage as osteocytes are to - CORRECT ANSWER - bone
The diaphragm separates the ____________ from the ____________. - CORRECT
ANSWER - thoracic cavity; abdominopelvic cavity
Unlike cartilage, bone - CORRECT ANSWER - is highly vascular
The cardiovascular reflexes are based in the - CORRECT ANSWER - medulla oblongata
The dominant fiber type in most dense connective tissue is - CORRECT ANSWER -
collagen
Which of the following bones is not part of the appendicular skeleton? - CORRECT
ANSWER - sacrum
You are given samples of adipose tissue and muscle tissue that have equal volumes. After
weighing the samples, you find the sample of muscle tissue has a greater mass. Which is true of
their densities? - CORRECT ANSWER - muscle tissue has a greater density
,Intercalated discs and striations are characteristic of - CORRECT ANSWER - cardiac
muscle tissue
What level of organization is the smallest living level of organization? - CORRECT
ANSWER - cellular level
Preganglionic neurons of the sympathetic nervous system are located in the - CORRECT
ANSWER - lateral gray horns of segments T1 to L2 of the spinal cord.
As the ________ nerve approaches the knee, it divides into two branches, the common fibular
nerve and the tibial nerve. - CORRECT ANSWER - sciatic
The quadriceps group includes all of the following, except the - CORRECT ANSWER -
biceps femoris
Synaptic vesicles containing neurotransmitters are released via ________ when the action
potential arrives. - CORRECT ANSWER - exocytosis
An increased amount of sodium in the extracellular fluid would lead to: - CORRECT
ANSWER - increase in extracellular fluid volume
Which of the following is not part of the axial division of the skeletal system? - CORRECT
ANSWER - pectoral girdle
The tough horny superficial layer of the epidermis is known as the - CORRECT
ANSWER - stratum corneum
Cells that store fat are called - CORRECT ANSWER - adipocytes
The Roman numeral VIII indicates the ________ nerve. - CORRECT ANSWER -
vestibulocochlear
, The hormone calcitonin functions to - CORRECT ANSWER - decrease the level of
calcium ion in the blood
Ions with a + charge are called - CORRECT ANSWER - cations
The dorsal root of a spinal nerve contains - CORRECT ANSWER - axons of sensory
neurons
Chromosomes consist of - CORRECT ANSWER - DNA and proteins
If a red blood cell is placed in an isotonic solution, the red blood cell will: - CORRECT
ANSWER - remain unchanged
Substrate molecules bind to enzymes at the ________ sites. - CORRECT ANSWER -
active
The plasma membrane is composed of - CORRECT ANSWER - a bilayer of
phospholipids
Action potentials are electrical signals conducted by which part of the neuron? - CORRECT
ANSWER - axons
The energy in the chemical bonds of food is known as: - CORRECT ANSWER - potential
energy
The protein that permits stretching and recoiling of the skin is - CORRECT ANSWER -
elastin
