Cell Growth and Division

The rate at which materials enter and leave the cell depends on the cell's

• volume

• weight

• surface area

• speciation

In order for a cell to divide successfully, it must first

• duplicate its genetic information

• decrease its volume

• increase it's number of chromosomes

• decrease its number of organelles

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The process that creates genetic diversity within a population is

• asexual reproduction

• cell division

• sexual reproduction

• binary vision

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Sister chromatids are attached to each other at an area called the

• centriole

• centromere

• spindle

• chromosome

If a cell has 12 chromosomes, how many chromosomes will each of its daughter cells have after mitosis and cytokinesis?

• 4

• 6

• 24

• 12

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In plant cells what forms midway between the divided nuclei during cytokinesis?

• cell plate

• contractile ring

• nuclear membrane

• centromere

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The timing in the cell cycle in eukaryotes is believed to be controlled by a group of closely related proteins known as ___________

• chromotids

• centromeres

• centrioles

• cyclins

Which statement does NOT describe external regulatory proteins?

• they respond to events occurring inside the cell

• growth factors are one group of external regulatory proteins

• they can speed up or slow down the cell cycle

• some can cause cells to stop or slow down their cell cycles

Bone marrow cells that produce blood cells are best categorized as .....

• embryonic stem cells

• adult stem cells

• pluripotent cells

• totipotent cells

Which type of cell has the potential to develop into any type of cell?

• totipotent

• pluripotent

• multipotent

• differentiated

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