Cells & Heredity: Chapter 3 Sections 3-1 and 3-3

Cells & Heredity: Chapter 3 Sections 3-1 and 3-3

Cell Cell DivisionDivision GDRGDR DefinitionsDefinitions LabsLabs MiscMisc

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Genetic material is organized Genetic material is organized in a cell in thein a cell in the

A.A. nucleus.nucleus.

B.B. cytoplasm.cytoplasm.

C.C. cell membrane.cell membrane.

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DNA is organized in the cell DNA is organized in the cell as as

A.A. chromosomes.chromosomes.

B.B. ribosomes.ribosomes.

C.C. chromatids.chromatids.

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DNA is condensed very ------ DNA is condensed very ------ into chromosomes.into chromosomes.

A.A. loosely.loosely.

B.B. tightly.tightly.

C.C. nucleicly.nucleicly.

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From birth to adult, the cells in From birth to adult, the cells in the organismthe organism

A.A. get larger and larger.get larger and larger.

B.B. get larger and then level off.get larger and then level off.

C.C. increase in number.increase in number.

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Growth involves one cell dividing into Growth involves one cell dividing into

A.A. a bud.a bud.

B.B. two more cells.two more cells.

C.C. a regeneration.a regeneration.

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Development means Development means

A.A. growing into more cells.growing into more cells.

B.B. specializing into different cells.specializing into different cells.

C.C. curing sores.curing sores.

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Repair refers to a cellRepair refers to a cell

A.A. getting rid of bad cells.getting rid of bad cells.

B.B. making only new multicellular making only new multicellular organisms.organisms.

C.C. making new cells to heal a wound.making new cells to heal a wound.

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GDR occurs in GDR occurs in

A.A. multicellular organisms.multicellular organisms.

B.B. multicellular and unicellular organisms.multicellular and unicellular organisms.

C.C. unicellular organisms.unicellular organisms.

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Binary fission is asexual reproductionBinary fission is asexual reproduction

A.A. occurring in prokaryotes.occurring in prokaryotes.

B.B. occuring in yeast.occuring in yeast.

C.C. occuring in starfish.occuring in starfish.

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Asexual reproduction is whenAsexual reproduction is when

A.A. one organism produces one or more one organism produces one or more new organisms.new organisms.

B.B. one organism produces two or more one organism produces two or more new organisms.new organisms.

C.C. two organisms produce one new two organisms produce one new organism.organism.

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Budding occurs inBudding occurs in

A.A. starfish.starfish.

B.B. yeast or Hydra.yeast or Hydra.

C.C. Hydra or starfish.Hydra or starfish.

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Regeneration is whenRegeneration is when

A.A. a bacteria makes a new cell.a bacteria makes a new cell.

B.B. a multicellular organism makes new a multicellular organism makes new tissue or cells.tissue or cells.

C.C. a yeast makes a new yeast.a yeast makes a new yeast.

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The yarn represented the The yarn represented the

A.A. DNA.DNA.

B.B. chromosomes.chromosomes.

C.C. nucleus.nucleus.

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The stick the yarn was wrapped The stick the yarn was wrapped around represented the around represented the

A.A. nucleus.nucleus.

B.B. chromosome.chromosome.

C.C. DNA.DNA.

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The yarn and stick lab was representingThe yarn and stick lab was representing

A.A. chromosomes condensing.chromosomes condensing.

B.B. DNA condensing.DNA condensing.

C.C. nuclear material expanding.nuclear material expanding.

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A plant can do this when a leaf is put in A plant can do this when a leaf is put in water and forms roots.water and forms roots.

A.A. binary fissionbinary fission

B.B. regenerateregenerate

C.C. buddingbudding

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Most of the growth in your Most of the growth in your body occurs because your body occurs because your

cellscellsA.A. divide.divide.

B.B. grow larger.grow larger.

C.C. take in oxygen.take in oxygen.

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Which is an example of Which is an example of reproduction?reproduction?

A.A. binary fission in unicellular organism.binary fission in unicellular organism.

B.B. cell division in a multicellular cell division in a multicellular organism.organism.

C.C. division of cytoplasm.division of cytoplasm.

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If a starfish is cut in half, it can If a starfish is cut in half, it can regrow its missing body regrow its missing body

throughthroughA.A. binary fission.binary fission.

B.B. healing.healing.

C.C. regeneration.regeneration.

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What ratio increases when a What ratio increases when a cell divides into two smaller cell divides into two smaller

cells?cells?A.A. volume to lengthvolume to length

B.B. width to surface areawidth to surface area

C.C. surface area to volumesurface area to volume

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