BIOLOGY:CONCEPTS+APPL.(LOOSELEAF)
10th Edition
ISBN: 9781305967359
Author: STARR
Publisher: CENGAGE L
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Textbook Question
Chapter 4, Problem 7SA
Most of a membrane’s diverse functions are carried out by ________ .
| a. proteins | c. |
| b. phospholipids | d. hormones |
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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.
Elastic nature of plasma membrane is due to the presence of
(a) lipids
(b) proteins
(c) carbohydrates
(d) water
The plasma membrane is made of:
a) protein
b) phospholipid
c) nucleic acid
d) carbohydrate
e) enzymes
Chapter 4 Solutions
BIOLOGY:CONCEPTS+APPL.(LOOSELEAF)
Ch. 4 - All cells have these three things in common...Ch. 4 - Every cell is descended from another cell. This...Ch. 4 - The surface-to-volume ratio _______. a. does not...Ch. 4 - Cell membranes consists mainly of ________ and...Ch. 4 - In a lipid bilayer, the ________ of all the lipid...Ch. 4 - What controls the passage of molecules into and...Ch. 4 - Most of a membranes diverse functions are carried...Ch. 4 - The main function of the endomembrane system is...Ch. 4 - Which of the following statements is correct? a....Ch. 4 - Enzymes contained in ________ break down worn-out...
Ch. 4 - Put the following structures in order according to...Ch. 4 - Prob. 12SACh. 4 - Which of the following organelles contains no DNA?...Ch. 4 - Prob. 14SACh. 4 - Prob. 15SACh. 4 - In a classic episode of Star Trek, a gigantic...Ch. 4 - Prob. 2CTCh. 4 - What type of micrograph is shown below? Is the...
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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_forwardWhich plasma membrane component can be either found on its surface or embedded in the membrane structure? a. protein b. cholesterol c. carbohydrate d. phospholipidarrow_forwardCell membranes consists mainly of ________ and ________ . a. lipids; carbohydrates c. lipids; phospholipids b. phospholipids; protein d. phospholipids; ECMarrow_forward
- The function of the cell membrane is similar to the function of what human organ system? A. Digestive B.integumentary C.muscular D. Skeletal arrow_forwardWhich of the following is Not a function of the plasma membrane proteins? A. Acting as enzymes B. Acting as channels C. Acting as carriers D. Stabilizing temperaturearrow_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
- 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 DNAarrow_forwardWhich of the following is not the role of the lysosome? a. transporting protein b. digesting damaged organelles c. recycling materials with a cell d. destroying harmful bacteriaarrow_forwardThe plasma membrane of a cell is composed of a ________ ________ and regulates molecular passage via _______ ________. a. potassium bilayer, unidirectional diffusion b. phospholipid bilayer, selective permeability c. phospholipid bilayer, random permeability d. protein wall, osmotic pumpsarrow_forward
- Which of the following is NOT a part of the endomembrane system? A. The Golgi apparatus B. Peroxisomes C. Lysosomes D. The exterior cell membranearrow_forwardWhich of the following statements about cellular membranes is/are FALSE? A. Only lipids move Within the membrane, while the proteins are anchored and immobile. B. Membranes are composed of lipids and proteins. C. Substances may be transported across membranes by active transport, facilitated transport or diffusion. D. Membrane proteins are classified as integral or peripheral, upon their functionarrow_forwardTonoplast, also called vacuolar membrane is a differentially permeable membrane surrounds the ______. A cytoplasm B vacuole C nucleus D mitochondriaarrow_forward
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