Exam 3: Cells

Methotrexate,an anticancer drug that interferes with cell replication,is most effective when the cancer cell is in the S phase of the cell cycle.Which of the following best describes methotrexate?

A beaker is divided into two compartments by a semipermeable membrane.Compartment A contains a 20% NaCl solution and compartment B contains a 50% NaCl solution.The membrane is permeable to water but not to Na⁺ or Cl-.Initially,

Telophase and cytokinesis

With regard to the cell cycle,

Which process describes phagocytosis and pinocytosis?

This cytoplasmic organelle contains the enzymes of the Krebs cycle and electron transport chain and is primarily concerned with the formation of ATP:

Which type of solution causes crenation or shrinkage of submerged red blood cells?

What programmed sequence of events helps rid the body of old,unnecessary,and unhealthy cells?

Which of the following best describes a cell that is necrotic?

Which of the following best describes the power or driving force for active transport?

Which of the following is a correct statement?

Which of the following is common to the ribosomes,rough ER,and Golgi apparatus?

G₁,G₂,the S phase,and the M phase are phases of

What is the transport mechanism in this description: A passive process that "pulls" water from an area where there is more water to an area where there is less water?

An anticancer drug that interferes only with mitosis

A beaker is divided into two compartments by a semipermeable membrane.Compartment A contains a 20% NaCl solution and compartment B contains a 50% NaCl solution.The membrane is permeable to water but not to Na⁺ or Cl-.At equilibrium,the

Most body potassium (K⁺) is located intracellularly.Through what transport mechanism would additional K⁺ move from the extracellular compartment to the intracellular compartment?

Prophase,metaphase,anaphase,and telophase

Plasma proteins determine

Which structure puts the finishing touches on and packages the protein for export from the cell?