BIO 152 Practice UPDATED Exam
Questions and CORRECT Answers
Which of the following statements concerning complex multicellular organisms is TRUE?
A. All plants and animals use bulk flow systems to move gasses and nutrients.
B. Bulk flow systems require organs like a heart to actively pump nutrients and dissolved gasses
deep into tissues that are not in contact with the external environment.
C. Bulk flow systems move substances faster than simple diffusion.
D. Bulk flow systems arose in the fossil record before adhesion or cell communication. -
CORRECT ANSWER - C. Bulk Flow systems move substances faster than simple
diffusion.
In humans and many other animals, what organ system is involved in bulk transport of nutrients,
oxygen, and signaling molecules?
A. respiratory system
B. circulatory system
C. immune system
D. digestive system - CORRECT ANSWER - B. Circulatory system
Which of the following is TRUE of plasmodesmata?
A. They are holes in the cell wall through which the plasma membrane and endoplasmic
reticulum of adjacent cells are connected.
B. They are channels in the plasma membrane of plant cells made of transmembrane proteins
that allow ions and small molecules to pass between adjacent cells.
C. They are channels in the plasma membrane of animal cells made of transmembrane proteins
that allow ions and small molecules to pass between adjacent cells.
D. They provide points of structural support between adjacent plant cells.
, E. They provide points of structural support between adjacent animal cells. - CORRECT
ANSWER - A. They are holes in the cell wall through which the plasma membrane and
ER of adjacent cells are connected.
Which of the following is the term for a ball of undifferentiated cells that results from repeated
mitosis of a fertilized egg?
A. zygote
B. blastula
C. gastrula
D. fetus - CORRECT ANSWER - B. Blastula
Which of the following is a characteristic of complex multicellular organisms, but not simple
multicellular organisms? Select all that apply.
a. the presence of subsets of cells (tissues) with specialized functions
b. the use of cell-adhesion molecules to allow cells to adhere to one another
c. the presence of a single cell with multiple nuclei
d. the ability to respond to changing environmental conditions - CORRECT ANSWER -
A. The presence of subsets of cells (tissue) with specialized functions.
In simple multicellularity:
a. There is extensive communication between cells.
b. Cells are highly differentiated and specialized.
c. Most cells retain a full range of functions.
d. Some cells are not in direct contact with the external environment. - CORRECT
ANSWER - C. Most cells retain a full range of functions.
The mesoglea, the jelly-like substance in the interior, of jellyfish:
Questions and CORRECT Answers
Which of the following statements concerning complex multicellular organisms is TRUE?
A. All plants and animals use bulk flow systems to move gasses and nutrients.
B. Bulk flow systems require organs like a heart to actively pump nutrients and dissolved gasses
deep into tissues that are not in contact with the external environment.
C. Bulk flow systems move substances faster than simple diffusion.
D. Bulk flow systems arose in the fossil record before adhesion or cell communication. -
CORRECT ANSWER - C. Bulk Flow systems move substances faster than simple
diffusion.
In humans and many other animals, what organ system is involved in bulk transport of nutrients,
oxygen, and signaling molecules?
A. respiratory system
B. circulatory system
C. immune system
D. digestive system - CORRECT ANSWER - B. Circulatory system
Which of the following is TRUE of plasmodesmata?
A. They are holes in the cell wall through which the plasma membrane and endoplasmic
reticulum of adjacent cells are connected.
B. They are channels in the plasma membrane of plant cells made of transmembrane proteins
that allow ions and small molecules to pass between adjacent cells.
C. They are channels in the plasma membrane of animal cells made of transmembrane proteins
that allow ions and small molecules to pass between adjacent cells.
D. They provide points of structural support between adjacent plant cells.
, E. They provide points of structural support between adjacent animal cells. - CORRECT
ANSWER - A. They are holes in the cell wall through which the plasma membrane and
ER of adjacent cells are connected.
Which of the following is the term for a ball of undifferentiated cells that results from repeated
mitosis of a fertilized egg?
A. zygote
B. blastula
C. gastrula
D. fetus - CORRECT ANSWER - B. Blastula
Which of the following is a characteristic of complex multicellular organisms, but not simple
multicellular organisms? Select all that apply.
a. the presence of subsets of cells (tissues) with specialized functions
b. the use of cell-adhesion molecules to allow cells to adhere to one another
c. the presence of a single cell with multiple nuclei
d. the ability to respond to changing environmental conditions - CORRECT ANSWER -
A. The presence of subsets of cells (tissue) with specialized functions.
In simple multicellularity:
a. There is extensive communication between cells.
b. Cells are highly differentiated and specialized.
c. Most cells retain a full range of functions.
d. Some cells are not in direct contact with the external environment. - CORRECT
ANSWER - C. Most cells retain a full range of functions.
The mesoglea, the jelly-like substance in the interior, of jellyfish:
