Chapter 3: From a Cell to an Organism

Animal cells do NOT have _____.

• centrioles

• centromeres

• cell plates/walls

• cytoplasm

Most of the life of any cell is spent in a period of growth called ______.

• interphase

• prophase

• telophase

• anaphase

Which choice is NOT a process of the cell cycle?

• growth

• division

• development

• death

Which choice correctly describes the two phases of the cell cycle?

• cells grow and develop during interphase; cells reproduce during the mitotic phase

• cells grow and develop during the mitotic phase; cells reproduce during interphase

• the nucleus of a cell divides during interphase; the cytoplasm of a cell divides during the mitotic phase

• the nucleus of a cell divides during the mitotic phase; the cytoplasm of a cell divides interphase

How long does it take for most dividing human cells to complete a cell cycle?

• a few minutes

• a day

• a year

• about 7 years

What is the frist thing that happens when a new cell is produced?

• it gets larger

• it gets smaller

• it divides again

• it rests

During which stage of interphase do cells perform their normal cell functions (such as making enzymes to digest your food)?

• S stage

• G₁ stage

• G₂ stage

• metastage

During which stage of interphase do cells copy their DNA?

• S stage

• G₁ stage

• G₂ stage

• metastage

During which stage of interphase do cells store energy for use in the mitotic phase?

• S

• G₁

• G₂

• S₂

During the S stage of interphase, pairs of identical chromosomes are held together by which structure?

• chromatid

• centromere

• connectroid

• centromatid