Human Biology (MindTap Course List)
11th Edition
ISBN: 9781305112100
Author: Cecie Starr, Beverly McMillan
Publisher: Cengage Learning
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Chapter 3, Problem 4SQ
Summary Introduction
Introduction: The plasma membrane is otherwise known as the cell membrane. The plasma membrane can be defined as the structure that surrounds the cells. The plasma membrane forms a barrier and separates the interior of the cell from the exterior environment. The major function of the plasma membrane is to regulate the movement of the molecules.
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All cells have these three things in common:______ . a. cytoplasm, DNA, and organelles with membranes b. a plasma membrane, DNA, and a nucleus c. cytoplasm, DNA, and a plasma membrane d. a cell wall, cytoplasm, and DNA
Elastic nature of plasma membrane is due to the presence of
(a) lipids
(b) proteins
(c) carbohydrates
(d) water
The function of the cell membrane is similar to the function of what human organ system?
A. Digestive
B.integumentary
C.muscular
D. Skeletal 
Chapter 3 Solutions
Human Biology (MindTap Course List)
Ch. 3 - Describe the general functions of the following in...Ch. 3 - Which organelles are in the endomembrane system?Ch. 3 - Distinguish between the following pairs of terms:...Ch. 3 - What do enzymes do in metabolic reactions?Ch. 3 - In aerobic cellular respiration, which reactions...Ch. 3 - For the diagram of the aerobic pathway shown in...Ch. 3 - The plasma membrane __________. a. surrounds the...Ch. 3 - The _________ is responsible for a eukaryotic...Ch. 3 - Cell membranes consist mainly of a _________. a....Ch. 3 - Prob. 4SQ
Ch. 3 - The passive movement of a solute through a...Ch. 3 - Match each organelle with its correct function.Ch. 3 - Which of the following statements is not true?...Ch. 3 - Enzymes _______. a. enhance reaction rates b. are...Ch. 3 - Match each substance with its correct descriptionCh. 3 - Cellular respiration is completed in the ______....Ch. 3 - Prob. 11SQCh. 3 - In a mitochondrion, where are the electron...Ch. 3 - Prob. 1CTCh. 3 - Jogging is considered aerobic exercise because the...Ch. 3 - Section 3.17 mentions that arsenic poisons human...Ch. 3 - The cells of your body never use nucleic acids as...
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- The tails of the phospholipids of the plasma membrane are composed of _____ and are _____? a. phosphate groups; hydrophobic b. fatty acid groups; hydrophilic c. phosphate groups; hydrophilic d. fatty acid groups; hydrophobicarrow_forwardMost of a membranes diverse functions are carried out by ________ . a. proteins c. nucleic acids b. phospholipids d. hormonesarrow_forwardCell membranes consists mainly of ________ and ________ . a. lipids; carbohydrates c. lipids; phospholipids b. phospholipids; protein d. phospholipids; ECMarrow_forward
- The plasma membrane isa. a carbohydrate layer that surrounds groups of cells to protect them.b. a double lipid layer with proteins inserted in it, which surrounds every cell individually.c. a thin sheet of structural proteins that encloses cytoplasm.d. composed of proteins that form a protective barrier.arrow_forwardThe plasma membrane is made of: a) protein b) phospholipid c) nucleic acid d) carbohydrate e) enzymesarrow_forwardWhich of these is not a function of the lipid bilayer? A. Changes the temperature B. Provides a flexible matrix C. Imposes a barrier to permeabilityarrow_forward
- the synthesis of carbohydrates takes place at the a. rough endoplasmic reticulum b. ribosomes c. smoother endoplasmic reticulum d. a nuclear membranearrow_forwardA cell physiologist treats a cell with a chemical that prevents entry of amino acids. Based on your understanding of the different cell organelles, predict which organelle will be affected the most.arrow_forwardWhat is NOT a function of the plasma membrane? a. isolate the cell from its surroundings b. communication with other cells c. catalyze macromolecules into subunits d. structural supportarrow_forward
- What kind of membrane proteins trigger a change in cellular activity in response to a stimulus? A. Receptor proteins B. Enzymes C. Adhesion proteins D. Transport proteinsarrow_forwardWhich is incorrect about the plasma membrane? a. It has a hydrophobic interior and hydrophilic region that faces water. b. Cholesterol affects the fluid nature of the membrane. c. Proteins embedded in the lipid bilayer do not move. d. It surrounds all living cellsarrow_forward________ is the process of a cell taking in needed molecules from the extracellular fluid. a. Phagocytosis b. Receptor-mediated endocytosis c. Pinocytosisarrow_forward
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