Spiral Review #5

Which action must occur for an enzyme to catalyze a chemical reaction?

A substrate must bind to an active site of the enzyme.

Which statement correctly describes how a protein is formed?

Amino acids are bonded together in a long chain to form a new molecule.

A cell in the leaf of a green plant performs both photosynthesis and cellular respiration, often at the same time. Which statement best describes how these processes are related to each other?

Products of one process are used as some of the reactants for the other processes.

An inversion occurs along part of a chromosome. How does the inversion most likely affect the region in which it occurs?

The information in the region is read differently during transcription.

A plant cell uses the molecules in the list to synthesize a protein. What role do the ATP molecules play in the protein synthesis process?

They provide energy.

Which labels correctly complete the diagram?

Y is transcription, and Z is translation

Which effect is most likely caused by nondisjunction during meiosis?

an extra chromosome

At a point in the cell cycle, chromosomes have aligned near the middle of a cell. Which sequence of events will the cell need to complete to produce two identical daughter cells?

anaphase > telophase > cytokinesis

Which cell process is best modeled by the diagram above?

exocytosis

In order for medicine X to produce the effects that the researchers observed, it must have entered into which part of the targeted cells?

nucleus