26. All of the following are typical components of the plasma membrane of a eukaryotic cellEXCEPT(A) glycoproteins(B) cytochromes(C) cholesterol(D) phospholipids(E) integral proteins27. The rate of division of most vertebrate cells is LEAST likely to be influenced by which ofthe following?(A) Contact with other cells(B) The availability of nutrients(C) Compounds that inhibit protein synthesis(D) The cell's photoperiod(E) The temperature of the organism28. During respiration, most ATP is formed as a direct result of the net movement of(A) potassium against a concentration gradient(B) protons down a concentration gradient(C) electrons against a concentration gradient(D) electrons through a channel(E) sodium ions into the cell29. Which of the following processes is carried out more efficiently by a C4 plant than by a C3plant?(A) Light absorption(B) Chemiosmotic coupling(D) Photolysis(D) Fixation of CO,(E) Transport of sugars30. A biologist isolates numerous tiny, green pigmented cells from a sample of lake water. Thecells are covered with a mucilaginous sheath. They contain relatively large amounts ofchlorophyll a and phycobilin pigments and lack a compact, organized nucleus. Electronmicroscopy will reveal that these cells also contain which of the following pairs of subcellularstructures?(A) Ribosomes and chloroplasts(B) Ribosomes and mitochondria(C) Golgi bodies and a cell wall(D) Thylakoids and a cell wall(E) Chloroplasts and mitochondria

26. All of the following are typical components of the plasma membrane of a eukaryotic cell EXCEPT (A) glycoproteins (B) cytochromes (C) cholesterol (D) phospholipids (E) integral proteins 27. The rate of division of most vertebrate cells is LEAST likely to be influenced by which of the following? (A) Contact with other cells (B) The availability of nutrients (C) Compounds that inhibit protein synthesis (D) The cell's photoperiod (E) The temperature of the organism 28. During respiration, most ATP is formed as a direct result of the net movement of (A) potassium against a concentration gradient (B) protons down a concentration gradient (C) electrons against a concentration gradient (D) electrons through a channel (E) sodium ions into the cell

26. All of the following are typical components of the plasma membrane of a eukaryotic cell EXCEPT (A) glycoproteins (B) cytochromes (C) cholesterol (D) phospholipids (E) integral proteins 27. The rate of division of most vertebrate cells is LEAST likely to be influenced by which of the following? (A) Contact with other cells (B) The availability of nutrients (C) Compounds that inhibit protein synthesis (D) The cell's photoperiod (E) The temperature of the organism 28. During respiration, most ATP is formed as a direct result of the net movement of (A) potassium against a concentration gradient (B) protons down a concentration gradient (C) electrons against a concentration gradient (D) electrons through a channel (E) sodium ions into the cell

Biology 2e

2nd Edition

ISBN:9781947172517

Author:Matthew Douglas, Jung Choi, Mary Ann Clark

Publisher:Matthew Douglas, Jung Choi, Mary Ann Clark

Chapter5: Structure And Function Of Plasma Membranes

Section: Chapter Questions

Problem 7RQ: A scientist compares the plasma membrane composition of an animal from the Mediterranean coast with...

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5) A boy with a congenital skin disease has rings of creases on his arms and legs as well as unusual facial features, intellectual disability, slow growth, and a cleft palate. His condition, termed a "tubulinopathy" is caused by a mutation in the gene TUBB. Based on what we learned about cell structure and organelle function, what part of the cell would you predict is affected by this condition?
11. Why is cell membrane said to be selectively permeable? * A. because of the polar nature of tail B. because of the presence of amino alcohol C. because of the presence of phospholipid bilayer D. because of the presence of hydrophobic head and hydrophilic tail
3. The protein integrin binds to actin filaments and, by binding to proteins like fibronectins, connects to collagen. In this manner, integrin ______. A.controls the permeability of the cytoplasmic membrane B. suspends organelles within the cytoplasm C. provides a direct linkage between the cytoskeleton and the extracellular matrix D. helps keep individual cells in place and connects adjacent cells to each other
1) Why can cell membranes be polar? What does polar mean? 2) What are the basic cytoskeletal components of a cell? What does an animal cell have that no other cell has in the cytoskeleton?
Arrange the following terms in order of increasing specialization: oligopotency, pleuripotency, unipotency, multipotency. multipotency, pleuripotency, oligopotency, unipotency pleuripotency, oligopotency, multipotency, unipotency oligopotency, pleuripotency, unipotency, multipotency pleuripotency, multipotency, oligopotency, unipotency
Why are ion channels necessary to transport ions into or out of a cell? Ions are too large to diffuse through the membrane. Ions are charged particles and cannot diffuse through the hydrophobic interior of the membrane. Ions do not need ion channels to move through the membrane. Ions bind to carrier proteins in the bloodstream, which must be removed before transport into the cell.
The nucleus and mitochondria share which of the following features? protein-lined membrane pores a double cell membrane the synthesis of ribosomes the production of cellular energy
The key components of desmosomes are cadherins and. actin microfilaments intermediate filaments microtubules
Which of the following is a feature common to all three components of the cytoskeleton? They all serve to scaffold the organelles within the cell. They are all characterized by roughly the same diameter. They are all polymers of protein subunits. They all help the cell resist compression and tension.
Which of the following do not play a role in intracellular movement? microfilaments and intermediate filaments microfilaments and microtubules intermediate filaments and microtubules only intermediate filaments
Which of the following have the ability to disassemble and reform quickly? microfilaments and intermediate filaments microfilaments and microtubules intermediate filaments and microtubules only intermediate filaments
Which of the following statements about proteins is correct? a. Proteins are transported to the rough ER for use within the cell. b. Lipids and carbohydrates are added to proteins by the Golgi complex. c. Proteins are transported directly into the cytosol for secretion from the cell. d. Proteins that are to be stored by the cell are moved to the rough ER. e. Proteins are synthesized in vesicles.