LSU BIOL 1001 Review Questions for
Ch. 5-8 2026 Exam Questions and
Answers | A+ Score Assured
CHAPTER 5: Within the fluid mosaic of a plasma membrane, what is the
role of transport and channel proteins?
(A) They prevent the passage of amino acids.
(B) They permit salts and sugars to move through the plasma membrane.
(C) They may set off cellular changes such as cell division or hormone
secretion.
(D) They are cell-surface attachment sites.
(E) They identify the cell. - 🧠 ANSWER ✔✔B
,CHAPTER 5: If red blood cells are taken from the body and placed in a
hypertonic solution, what
happens to the cells?
(A) The cells swell and burst because water moves into them.
(B) The cells shrivel up because water leaves them.
(C) The cells remain unchanged due to equal solute concentrations inside
and outside the cells.
(D) The cells remain unchanged due to equal water concentrations inside
and outside the cells.
(E) They become white blood cells. - 🧠 ANSWER ✔✔B
CHAPTER 5: Plasma membranes are BEST described as a what?
(A) double layer of phospholipids with hydrophobic tails directed toward the
cytoplasm of the cell.
(B) single layer of phospholipids with water molecules attached along one
side.
(C) double layer of phospholipids with hydrophilic heads directed toward
one another.
, (D) double layer of phospholipids with hydrophobic tails oriented toward
one another.
(E) single layer of phospholipids with tails pointed toward the inside of the
cell. - 🧠 ANSWER ✔✔D
CHAPTER 5: Osmosis moves water from a region of what to what?
(A) high concentration of dissolved material to a region of low
concentration.
(B) low concentration of dissolved material to a region of high
concentration.
(C) hypertonic solution to a region of hypotonic solution.
(D) negative osmotic potential to a region of positive osmotic potential.
(E) low concentration of water to a region of high concentration of water. - 🧠
ANSWER ✔✔B
CHAPTER 5: More than half a century ago, two cell biologists published
details of their research
involving isolated membrane vesicles from chloroplasts. Normally, the fluid
inside these vesicles is near neutral.
COPYRIGHT©PROFFKERRYMARTIN 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE.
PRIVACY STATEMENT. ALL RIGHTS RESERVED
Ch. 5-8 2026 Exam Questions and
Answers | A+ Score Assured
CHAPTER 5: Within the fluid mosaic of a plasma membrane, what is the
role of transport and channel proteins?
(A) They prevent the passage of amino acids.
(B) They permit salts and sugars to move through the plasma membrane.
(C) They may set off cellular changes such as cell division or hormone
secretion.
(D) They are cell-surface attachment sites.
(E) They identify the cell. - 🧠 ANSWER ✔✔B
,CHAPTER 5: If red blood cells are taken from the body and placed in a
hypertonic solution, what
happens to the cells?
(A) The cells swell and burst because water moves into them.
(B) The cells shrivel up because water leaves them.
(C) The cells remain unchanged due to equal solute concentrations inside
and outside the cells.
(D) The cells remain unchanged due to equal water concentrations inside
and outside the cells.
(E) They become white blood cells. - 🧠 ANSWER ✔✔B
CHAPTER 5: Plasma membranes are BEST described as a what?
(A) double layer of phospholipids with hydrophobic tails directed toward the
cytoplasm of the cell.
(B) single layer of phospholipids with water molecules attached along one
side.
(C) double layer of phospholipids with hydrophilic heads directed toward
one another.
, (D) double layer of phospholipids with hydrophobic tails oriented toward
one another.
(E) single layer of phospholipids with tails pointed toward the inside of the
cell. - 🧠 ANSWER ✔✔D
CHAPTER 5: Osmosis moves water from a region of what to what?
(A) high concentration of dissolved material to a region of low
concentration.
(B) low concentration of dissolved material to a region of high
concentration.
(C) hypertonic solution to a region of hypotonic solution.
(D) negative osmotic potential to a region of positive osmotic potential.
(E) low concentration of water to a region of high concentration of water. - 🧠
ANSWER ✔✔B
CHAPTER 5: More than half a century ago, two cell biologists published
details of their research
involving isolated membrane vesicles from chloroplasts. Normally, the fluid
inside these vesicles is near neutral.
COPYRIGHT©PROFFKERRYMARTIN 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE.
PRIVACY STATEMENT. ALL RIGHTS RESERVED
