BIOLOGY VOL. II
16th Edition
ISBN: 9781308795317
Author: Raven
Publisher: Mcgraw-Hill/Create
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Chapter 4, Problem 1S
The smooth endoplasmic reticulum is the site of synthesis of the phospholipids that make up all the membranes of a cell—especially the plasma membrane. Use the diagram of an animal cell (figure 4.6) to trace a pathway that would carry a phospholipid molecule https://bookshelf.textbooks.com/#/books/9781259668920/cfvi/6/30!/4/2/2@0:0 67/68
26/03/2018 Textbooks.com: Biology
from the SER to the plasma membrane. What endomembrane compartments would the phospholipids travel through? How can a phospholipid molecule move between membrane compartments?
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Chapter 4 Solutions
BIOLOGY VOL. II
Ch. 4 - Which of the following statements is NOT part of...Ch. 4 - All cells have all of the following except a....Ch. 4 - Eukaryotic cells are more complex than prokaryotic...Ch. 4 - Which of the following are differences between...Ch. 4 - The cytoskeleton includes a. microtubules made of...Ch. 4 - The smooth endoplasmic reticulum is a. involved in...Ch. 4 - Plasmodesmata in plants and gap junctions in...Ch. 4 - The most important factor that limits the size of...Ch. 4 - All eukaryotic cells possess each of the following...Ch. 4 - Adherens junctions, which contain cadherin, are...
Ch. 4 - Different motor proteins like kinesin and myosin...Ch. 4 - The protein sorting pathway involves the following...Ch. 4 - Chloroplasts and mitochondria have many common...Ch. 4 - Prob. 7ACh. 4 - The smooth endoplasmic reticulum is the site of...Ch. 4 - Use the information provided in table 4.3 to...Ch. 4 - Prob. 3SCh. 4 - The protist Giardia intestinalis is the organism...
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- Ammonia (NH3) is a weak base that under acidic conditions becomes protonated to the ammonium ion in the following reaction: NH3 + H+ → NH+4 NH3 freely permeates biological membranes, including those of lysosomes. The lysosome is a subcellular organelle with a pH of about 4.5–5.0; the pH of cytoplasm is about 7.0. What is the effect on the pH of the fluid content of lyso- somes when cells are exposed to ammonia? Note: Ammo- nium (NH4+) does not diffuse freely across membranes.arrow_forwardEndoplasmic reticulum, mitochondria, and golgi bodies are structures in cell whose forms dictate their physical functions. Describe their function in relation to their structure.arrow_forwardBelow is the skeletal formula of a molecule typically found in cell membranes. What type of molecule is this and how can you tell? What are the functions of this type of molecule in the plasma membrane of a cell? CH3 CH₂) (CH₂) 16 CH3 Koarrow_forward
- Imagine that a cell has a plasma membrane made ONLY of phospholipids and contains no proteins. Classify the molecules listed below according to whether or not they are likely to diffuse across the plasma membrane. Fatty acids Rapid Diffusion Across the Plasma Membrane Slow/No Diffusion Across the Plasma Water Membrane Oxygen Glucose Ca2+ Steroid hormonesarrow_forwardAnswer the following question based on the structure of the molecule below. NH HO-P-o он он NH2 OH OH ÓH OH Molecule X is a analog of which is likely water and would permeate the plasma membrane. OA, nonhydrolyzeable; GTP; insoluble; readily B. nonhydrolyzeable; ATP; insoluble; readily c. nonhydrolyzeable; ATP; soluble; readily D. nonhydrolyzeable; GTP; soluble; not E. nonhydrolyzeable; GTP; soluble; readilyarrow_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_forward
- 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_forwardState the functions and importance of each of the following cell membrane components. 1. Phospholipid 2. Sphingolipid 3. Glycoprotein 4. Glycolipid 5. Peripheral Protein 6. Integral Protein 7. Cholesterol 8. Cytoskeleton Filamentsarrow_forwardUsing the information from the Cell Parts Chart and the picture below, explain how the endoplasmic reticulum and the Golgi body work together.arrow_forward
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