BIOLOGY:CONCEPTS+APPL.(LOOSELEAF)
10th Edition
ISBN: 9781305967359
Author: STARR
Publisher: CENGAGE L
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Textbook Question
Chapter 4, Problem 4SA
Cell membranes consists mainly of ________ and ________ .
| a. lipids; carbohydrates | c. lipids; phospholipids |
| b. phospholipids; protein | d. phospholipids; ECM |
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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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- Which of the following are essential components of cell membrane? a. Cholesterol b.Phospholipids c.Long chain polyunsaturated fatty acids d.All of the abovearrow_forwardWhich of the following is true about lipid bilayers? A. They are self-forming. B. They are dynamic. C. They are fluid. D. They are permeable. A, C, D only A, B, C only B, C, D only A, B, C, Darrow_forwardWhich of the following is NOT a component of the cell plasma membrane? A. cholesterol B. proteins C. microfi laments D. phospholipidsarrow_forward
- Phospholipids are important components of A. bacterial cell walls B. ribosomes C. carbohydrates D. steroid lipids E. lipid dropletsarrow_forwardThe function of the cell membrane is similar to the function of what human organ system? A. Digestive B.integumentary C.muscular D. Skeletal arrow_forwardBased on what you have just learned about the structure and function of cellular membranes, describe how such a cell accomplishes these interactions with its environment.arrow_forward
- Which of the following is incorrect regarding phospholipids?a. The heads are polar.b. The tails are nonpolar.c. They contain a phosphate group in place of one fatty acid.d. They are energy-storage molecules in the cell.arrow_forwardThe 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_forwardWhat structure cannot be found in ALL cells? Explain why A. Mitochondria B. DNA C. Cell membrane D. Cytoplasm F. Ribosomesarrow_forward
- All of the chemical reactions that occur in a cell are calleda. homeostasis. b. metabolism.c. heterostasis.d. cytoplasm.arrow_forwardWhich One is NOT TRUE about membranes? a. Membranes rich in fatty acids containing one or more double bonds are more fluid than membranes with no double bonds in fatty acids. b. If cholesterol is present in membranes, the fluidity of membranes will be reduced at moderate and warm temperatures. c. If cholesterol is present in membranes, the fluidity will remain intact at low temperatures. d. If the fatty acids with double bond are present in membranes, the membrane will be viscous.arrow_forwardWhat are the three molecules the cell membrane is primarily made of?arrow_forward
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