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11) In order to transport material across the plasma membrane, in most cases, bacteria cell have:...
6) The Gram stain will stain bacteria on the basis of the chemistry of the: a)...
6) The Gram stain will stain bacteria on the basis of the chemistry of the: a) plasma membranes b) chromosomes c) cell wall d cytoplasmic proteins e) ribosomes 7) The Acid-Fast stain will stain bacteria on the basis of the chemistry of the a) plasma membranes b) chromosomes c) cell wall d) cytoplasmic proteins e) ribosomes 8) The morphology or shape of bacteria that are streptococcal or staphylococcal is dependant of the bacterial: a) cell wall b) plasma membrane c)...
Active transport requires and in order to function correctly. • A. nucleic acids, membrane proteins e...
Active transport requires and in order to function correctly. • A. nucleic acids, membrane proteins e B. energy, peripheral proteins C. energy, membrane pxoteins D. energy, nucleic acids Which of the following is not a Eukaryote? A. Oak tree B. Bacteria C. Human D. Mushroom A neuron has many short thin fibers called and a single long • A. Dendrites, Axon B. Receptors, Nerve fiber C. Axons, Dendrite D. Myelin sheaths, Cell body • Bacteria can be described as: I....
MEMBRANE STRUCTURE AND TRANSPORT ACROSS CELL MEMBRANES 1. An organelle that is characterized by extensive, folded...
MEMBRANE STRUCTURE AND TRANSPORT ACROSS CELL MEMBRANES 1. An organelle that is characterized by extensive, folded membranes and is often associated with ribosomes 2. Label the following diagram Qutsde of cel LE nside of cell 3. List 4 functions of the plasma membrane c. d. 4. Complete the table below with the role cach component of the plasma membrane plays Plasma membrane components Role in the membrane Phospholipid Bilayer Cholesterol Glycopeoteins Glycolipids Protein Receptor Site Protein channel Protein Carrier 5....
QUESTION 39 Whereas animal cells drive indirect transport across the plasma membrane with a Na+ gradient,...
QUESTION 39 Whereas animal cells drive indirect transport across the plasma membrane with a Na+ gradient, other organisms like plants and bacteria use O A a glucose gradient B. a Ca2+ gradient C. a proton gradient D. osmosis E. endocytosis and exocytosis. Flight energy
91) Bacteria reproduce through: a) sex b) mitosis c) F-pili d) binary fission e) conjugation 92) Diffusion of water...
91) Bacteria reproduce through: a) sex b) mitosis c) F-pili d) binary fission e) conjugation 92) Diffusion of water across the membrane is known as a) water transport b) osmosis e) hydrolysis d) hydroponics e) none of the above 93) When bacteria can grow in the absence or presence of oxygen, with no preference, they are known as: a) facultative acrobes b) acrobes c) acrotolerant d) microcarophiles e) anaerobic 94) Bacteria that grow at very cold temperatures (even below freezing)...
Roles of the Na+/ K+ pump 1. Maintain the Nat/K+ concentration gradicnt across the plasma membrane....
Roles of the Na+/ K+ pump 1. Maintain the Nat/K+ concentration gradicnt across the plasma membrane. (That's obvious) 2. It plays a role in maintaining the resting membrane potential. Why? 3. The steep electrochemical gradient of Na+ is used in "coupled active transport" (coupled pumps). If the Nat/K+ pump stops, then these Na+ coupled transport mechanisms will also eventually stop. Explain The apical surface of the epithelial cells that line the lumen of the gut contains a symport that used...
Why do cells lack membrane transport proteins that are specific for the movement of Oz? Choose...
Why do cells lack membrane transport proteins that are specific for the movement of Oz? Choose one: A. because oxygen is transported in and out of the cell by special oxygen-binding proteins such as hemoglobin B. because oxygen concentrations must be kept low inside cells to avoid creating reactive superoxide radicals that can damage DNA and proteins C. because oxygen, dissolved in water, can enter cells via aquaporins D. because oxygen dissolves readily in lipid bilayers E. because transport of...
1. Like phospholipids, lipopolysaccharides have a hydrophilic head and a hydrophobic tail. True or false 2....
1. Like phospholipids, lipopolysaccharides have a hydrophilic head and a hydrophobic tail. True or false 2. The outer membrane of Gram negative bacteria contains lipopolysaccharides T or F 3. Biofilms and pure culture are formed by only one type of microorganism T or F 4. Any given antibiotic will have the same minimum inhibitory concentration (MIC) against any test microorganism. T or F 5. Production of antibiotics by the microorganism is not affected by the culture conditions T or F...
33) Which of the following is most likely true of a protein that cotransports glucose and...
33) Which of the following is most likely true of a protein that cotransports glucose and sodium ions into the intestinal cells of an animal? A) Sodium and glucose bind to the same site on the cotransporter. B) Transport of glucose against its concentration gradient provides energy for uptake of sodium ions against the electrochemical gradient. C) Sodium ions can be transported whether or not glucose is present outside the cell, but glucose transport requires cotransport of sodium ions. D)...
15. Diffusion of water through a differentially permeable membrane is called A. active transport. B. energy....
15. Diffusion of water through a differentially permeable membrane is called A. active transport. B. energy. C. osmosis. D. All of these answers are true. 16. What happens when an animal cell is placed into a hypertonic solution? A. plasmolysis B. crenation occurs C. it swells D. it is unchanged 17. The point on the enzyme where the enzyme causes the substrate to change is called the A. attachment site. B. active site. C. binding site. D. enzyme-substrate complex 18....
6) The Gram stain will stain bacteria on the basis of the chemistry of the: a) plasma membranes b) chromosomes c) cell wall d cytoplasmic proteins e) ribosomes 7) The Acid-Fast stain will stain bacteria on the basis of the chemistry of the a) plasma membranes b) chromosomes c) cell wall d) cytoplasmic proteins e) ribosomes 8) The morphology or shape of bacteria that are streptococcal or staphylococcal is dependant of the bacterial: a) cell wall b) plasma membrane c)...
Active transport requires and in order to function correctly. • A. nucleic acids, membrane proteins e B. energy, peripheral proteins C. energy, membrane pxoteins D. energy, nucleic acids Which of the following is not a Eukaryote? A. Oak tree B. Bacteria C. Human D. Mushroom A neuron has many short thin fibers called and a single long • A. Dendrites, Axon B. Receptors, Nerve fiber C. Axons, Dendrite D. Myelin sheaths, Cell body • Bacteria can be described as: I....
MEMBRANE STRUCTURE AND TRANSPORT ACROSS CELL MEMBRANES 1. An organelle that is characterized by extensive, folded membranes and is often associated with ribosomes 2. Label the following diagram Qutsde of cel LE nside of cell 3. List 4 functions of the plasma membrane c. d. 4. Complete the table below with the role cach component of the plasma membrane plays Plasma membrane components Role in the membrane Phospholipid Bilayer Cholesterol Glycopeoteins Glycolipids Protein Receptor Site Protein channel Protein Carrier 5....
QUESTION 39 Whereas animal cells drive indirect transport across the plasma membrane with a Na+ gradient, other organisms like plants and bacteria use O A a glucose gradient B. a Ca2+ gradient C. a proton gradient D. osmosis E. endocytosis and exocytosis. Flight energy
91) Bacteria reproduce through: a) sex b) mitosis c) F-pili d) binary fission e) conjugation 92) Diffusion of water across the membrane is known as a) water transport b) osmosis e) hydrolysis d) hydroponics e) none of the above 93) When bacteria can grow in the absence or presence of oxygen, with no preference, they are known as: a) facultative acrobes b) acrobes c) acrotolerant d) microcarophiles e) anaerobic 94) Bacteria that grow at very cold temperatures (even below freezing)...
Roles of the Na+/ K+ pump 1. Maintain the Nat/K+ concentration gradicnt across the plasma membrane. (That's obvious) 2. It plays a role in maintaining the resting membrane potential. Why? 3. The steep electrochemical gradient of Na+ is used in "coupled active transport" (coupled pumps). If the Nat/K+ pump stops, then these Na+ coupled transport mechanisms will also eventually stop. Explain The apical surface of the epithelial cells that line the lumen of the gut contains a symport that used...
Why do cells lack membrane transport proteins that are specific for the movement of Oz? Choose one: A. because oxygen is transported in and out of the cell by special oxygen-binding proteins such as hemoglobin B. because oxygen concentrations must be kept low inside cells to avoid creating reactive superoxide radicals that can damage DNA and proteins C. because oxygen, dissolved in water, can enter cells via aquaporins D. because oxygen dissolves readily in lipid bilayers E. because transport of...
33) Which of the following is most likely true of a protein that cotransports glucose and sodium ions into the intestinal cells of an animal? A) Sodium and glucose bind to the same site on the cotransporter. B) Transport of glucose against its concentration gradient provides energy for uptake of sodium ions against the electrochemical gradient. C) Sodium ions can be transported whether or not glucose is present outside the cell, but glucose transport requires cotransport of sodium ions. D)...
15. Diffusion of water through a differentially permeable membrane is called A. active transport. B. energy. C. osmosis. D. All of these answers are true. 16. What happens when an animal cell is placed into a hypertonic solution? A. plasmolysis B. crenation occurs C. it swells D. it is unchanged 17. The point on the enzyme where the enzyme causes the substrate to change is called the A. attachment site. B. active site. C. binding site. D. enzyme-substrate complex 18....
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