Multiple Choice Questions

Which of the following processes requires ATP?
  • to form sister chromatids that can be separated during mitosis
  • The DNA of the parental template consists of antiparallel strands.
  • >>Exocytosis<< is a form of vesicular transport. All vesicular transport processes are active processes that require ATP.
  • membrane glycolipids membrane glycoproteins glycocalyx sugars >>>all of the above
Which of the following best describes the driving force behind secondary active transport?
  • The DNA of the parental template consists of antiparallel strands.
  • >>The rate of facilitated diffusion may be controlled by altering the activity or number of transport proteins, but the rate of simple diffusion cannot be controlled.Activating more channels or carrier proteins would increase the rate of facilitated diffusion, and inactivating them would decrease the rate. Simple diffusion relies on lipid solubility and membrane permeability, which are not as easily changed.
  • >>In primary active transport, the transport protein gets phosphorylated; in secondary active transport, the transport protein is not phosphorylated. In primary active transport, energy comes directly from the hydrolysis of ATP and the subsequent phosphorylation of the primary active transporter. In secondary active transport, the solute (usually Na+) concentration gradient produced by primary active transport provides the (kinetic) energy to move other solutes, such as ions and glucose, against their concentration gradients. For example, glucose can be transported against its concentration gradient through a Na+-glucose symporter as Na+ moves down its concentration gradient (a gradient produced by the Na+-K+ pump).
  • >>the concentration gradient produced by primary active transport drives the transport of other materialsFor example, the sodium-potassium ATPase pump creates a high concentration of sodium in the extracellular fluid. This sodium concentration gradient provides the energy to bring other molecules such as glucose into the cell via a symport transport protein.
What must happen before a body cell can begin mitotic cell division?
  • membrane glycolipids membrane glycoproteins glycocalyx sugars >>>all of the above
  • to form sister chromatids that can be separated during mitosis
  • The cell has a great metabolic demand.
  • Its DNA must be replicated exactly so that identical copies of the cell's genes can be passed on to each of its offspring.
What is the purpose of the S phase of interphase?
  • Chromosomes condense as sister chromatid pairs.
  • to form sister chromatids that can be separated during mitosis
  • >>Exocytosis<< is a form of vesicular transport. All vesicular transport processes are active processes that require ATP.
  • Attachment of chromatid pairs to spindle microtubules.
What is a membrane potential ?
  • A voltage across the membrane
  • Chromosomes condense as sister chromatid pairs.
  • to form sister chromatids that can be separated during mitosis
  • Cytokinesis usually begins in anaphase
Which of the following is a difference between primary and secondary active transport?
  • >>the concentration gradient produced by primary active transport drives the transport of other materialsFor example, the sodium-potassium ATPase pump creates a high concentration of sodium in the extracellular fluid. This sodium concentration gradient provides the energy to bring other molecules such as glucose into the cell via a symport transport protein.
  • >>In primary active transport, the transport protein gets phosphorylated; in secondary active transport, the transport protein is not phosphorylated. In primary active transport, energy comes directly from the hydrolysis of ATP and the subsequent phosphorylation of the primary active transporter. In secondary active transport, the solute (usually Na+) concentration gradient produced by primary active transport provides the (kinetic) energy to move other solutes, such as ions and glucose, against their concentration gradients. For example, glucose can be transported against its concentration gradient through a Na+-glucose symporter as Na+ moves down its concentration gradient (a gradient produced by the Na+-K+ pump).
  • membrane glycolipids membrane glycoproteins glycocalyx sugars >>>all of the above
  • >>The rate of facilitated diffusion may be controlled by altering the activity or number of transport proteins, but the rate of simple diffusion cannot be controlled.Activating more channels or carrier proteins would increase the rate of facilitated diffusion, and inactivating them would decrease the rate. Simple diffusion relies on lipid solubility and membrane permeability, which are not as easily changed.
What is the function of mRNA during translation?
  • to form sister chromatids that can be separated during mitosis
  • >>mRNA carries the code for a polypeptide's sequence of amino acids.Translation involves a number of different RNA molecules. It is mRNA that carries the code for the polypeptide's sequence of amino acids. The code for each amino acid is a three-base sequence called a codon
  • >>tRNA carries amino acids to the ribosome.During translation, each new amino acid is carried to the ribosome by a tRNA molecule. Each tRNA molecule carries a particular amino acid. This amino acid is dictated by the particular anticodon that the tRNA molecule contains. For a particular mRNA codon, only one tRNA molecule contains the complementary anticodon necessary to bind. Once bound, the amino acid is transferred from the tRNA molecule to the growing polypeptide.
  • >>Exocytosis<< is a form of vesicular transport. All vesicular transport processes are active processes that require ATP.
Which is true regarding cytokinesis?
  • Attachment of chromatid pairs to spindle microtubules.
  • A voltage across the membrane
  • Cytokinesis usually begins in anaphase
  • Chromosomes condense as sister chromatid pairs.
Which of the following accurately describes a difference between simple and facilitated diffusion?
  • >>the concentration gradient produced by primary active transport drives the transport of other materialsFor example, the sodium-potassium ATPase pump creates a high concentration of sodium in the extracellular fluid. This sodium concentration gradient provides the energy to bring other molecules such as glucose into the cell via a symport transport protein.
  • >>In primary active transport, the transport protein gets phosphorylated; in secondary active transport, the transport protein is not phosphorylated. In primary active transport, energy comes directly from the hydrolysis of ATP and the subsequent phosphorylation of the primary active transporter. In secondary active transport, the solute (usually Na+) concentration gradient produced by primary active transport provides the (kinetic) energy to move other solutes, such as ions and glucose, against their concentration gradients. For example, glucose can be transported against its concentration gradient through a Na+-glucose symporter as Na+ moves down its concentration gradient (a gradient produced by the Na+-K+ pump).
  • >>The rate of facilitated diffusion may be controlled by altering the activity or number of transport proteins, but the rate of simple diffusion cannot be controlled.Activating more channels or carrier proteins would increase the rate of facilitated diffusion, and inactivating them would decrease the rate. Simple diffusion relies on lipid solubility and membrane permeability, which are not as easily changed.
  • The DNA of the parental template consists of antiparallel strands.
Which of the following statements best explains why the leading and lagging strands are synthesized using two different mechanisms?
  • The DNA of the parental template consists of antiparallel strands.
  • membrane glycolipids membrane glycoproteins glycocalyx sugars >>>all of the above
  • >>The rate of facilitated diffusion may be controlled by altering the activity or number of transport proteins, but the rate of simple diffusion cannot be controlled.Activating more channels or carrier proteins would increase the rate of facilitated diffusion, and inactivating them would decrease the rate. Simple diffusion relies on lipid solubility and membrane permeability, which are not as easily changed.
  • >>Exocytosis<< is a form of vesicular transport. All vesicular transport processes are active processes that require ATP.
Which phrase below correctly describes metaphase?
  • Sister chromatids are aligned at the metaphase plate
  • Attachment of chromatid pairs to spindle microtubules.
  • Chromosomes condense as sister chromatid pairs.
  • to form sister chromatids that can be separated during mitosis
Which of the following organelles is correctly paired with its function?
  • membrane glycolipids membrane glycoproteins glycocalyx sugars >>>all of the above
  • Sister chromatids are aligned at the metaphase plate
  • smooth endoplasmic reticulum: metabolism of lipids
  • The DNA of the parental template consists of antiparallel strands.
Which of the following molecules might change over time in a cancer cell?
  • membrane glycolipids membrane glycoproteins glycocalyx sugars >>>all of the above
  • >>The rate of facilitated diffusion may be controlled by altering the activity or number of transport proteins, but the rate of simple diffusion cannot be controlled.Activating more channels or carrier proteins would increase the rate of facilitated diffusion, and inactivating them would decrease the rate. Simple diffusion relies on lipid solubility and membrane permeability, which are not as easily changed.
  • >>Exocytosis<< is a form of vesicular transport. All vesicular transport processes are active processes that require ATP.
  • The DNA of the parental template consists of antiparallel strands.
Select the correct activity occurring during anaphase.
  • Chromosomes move toward opposite poles of cell
  • Chromosomes condense as sister chromatid pairs.
  • Cytokinesis usually begins in anaphase
  • to form sister chromatids that can be separated during mitosis
0 h : 0 m : 1 s

Multiple Choice Questions
Answered Not Answered Not Visited Correct : 0 Incorrect : 0