Biology: The Unity and Diversity of Life (MindTap Course List)
14th Edition
ISBN: 9781305073951
Author: Cecie Starr, Ralph Taggart, Christine Evers, Lisa Starr
Publisher: Cengage Learning
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Chapter 4, Problem 5SQ
Summary Introduction
Introduction: All cells have a cell membrane that is also known as plasma membrane, and it is made up of proteins and lipids. It provides cell shape and structural support. It is a semi-permeable membrane that regulates the entry as well as the amount of substances entering in the cell. They play the role of gatekeeping.
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________ form specialized sites on the cell surface that allow cells to recognize each other.
a.
Cholesterols
b.
Carbohydrates
c.
Phospholipids
Which of the following are essential components of cell membrane?
a. Cholesterol
b.Phospholipids
c.Long chain polyunsaturated fatty acids
d.All of the above
_____________ membrane proteins transverse the entire lipid bilayer.
a. Integral
b. Peripheral
c. Lipid anchored
d. Glycerophospholipid
Chapter 4 Solutions
Biology: The Unity and Diversity of Life (MindTap Course List)
Ch. 4 - Abnormal Motor Proteins Cause Kartagener Syndrome...Ch. 4 - All cells have these three things in common:...Ch. 4 - Prob. 2SQCh. 4 - Prob. 3SQCh. 4 - True or false? Some protists start out life with...Ch. 4 - Prob. 5SQCh. 4 - True or false? Ribosomes are only found in...Ch. 4 - Unlike eukaryotic cells, prokaryotic...Ch. 4 - Enzymes. contalned in _______ break down worn-out...Ch. 4 - Put the following structures in order according to...
Ch. 4 - The main function of the endomembrane system is:...Ch. 4 - True or false? The plasma membrane is the...Ch. 4 - Prob. 12SQCh. 4 - Which of the following organelles contains no DNA?...Ch. 4 - No animal cell has a ___________. a. plasma...Ch. 4 - Prob. 15SQCh. 4 - In a classic episode of Star Trek, a gigantic...Ch. 4 - Prob. 2CTCh. 4 - Prob. 3CT
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- Phosphatidylinositol 4,5-bisphosphate (PIP2) is a __________ that carries a net __________ charge. A. glycerophospholipid; -1 B. glycerophospholipid; -2 C. glycerophospholipid; -4 D. sphingolipid; -2 E. sphingolipid; -3arrow_forwardIdentify which lipids are important components of the cellular membrane. SELECT ALL THAT APPLY A. Phospholipids B. Bile Salts C. Fatty Acids D. Cholesterolarrow_forwardWhich of the following polysaccharides is a component of the extracellular matrix and connective tissue? a. glycogen b. hyaluronic acid c. chitin d. cellulosearrow_forward
- Cholesterol is a _____ substance found in the ______ A. protein; Golgi apparatus. B. carbohydrate; cell membrane. C. protein; cell membrane. D. lipid; cell membrane. E. lipid; Golgi apparatus.arrow_forwardThe structure where amino acids are put together in order to make proteins is the ________________. a. Nucleus b. Mitochondria c. Ribosome d. Endoplasmic reticulumarrow_forwardPhospholipids are important components of __________. a. the plasma membrane of cells b. the ring structure of steroids c. the waxy covering on leaves d. the double bond in hydrocarbon chainsarrow_forward
- Decide whether each of the following molecules will pass through a lipid bilayer. If the molecule will pass through, type yes it will. If the molecule will not pass through, type no it will not. a. Glucose b. Glycerol C.water D. Oxygen gasarrow_forwardPhospholipids are important components of A. bacterial cell walls B. ribosomes C. carbohydrates D. steroid lipids E. lipid dropletsarrow_forwardCell membranes consists mainly of ________ and ________ . a. lipids; carbohydrates c. lipids; phospholipids b. phospholipids; protein d. phospholipids; ECMarrow_forward
- ______cannot diffuse across a lipid bilayer. a. Water molecules c. Ions b. Gases d. Nonpolar moleculesarrow_forwardSome cytosolic proteins are anchored to the cell membrane via covalent bonds between cysteine or serine residues and _________ within the inner leaflet of the plasma membrane. A. GPI anchors B. cholesterol molecules C. lauric acid groups D. myristic acid groups E. palmitic acid groupsarrow_forwardWhich of the following is NOT a component of the cell plasma membrane? A. cholesterol B. proteins C. microfi laments D. phospholipidsarrow_forward
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