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IB Biology > Stem Cells & Differentiation > Flashcards

Stem Cells & Differentiation Flashcards

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1
Q

A cell is able to differentiate into any type of blood cell. It is not able to turn into any other cell type. Which term best describes this cell?

a) Pluripotent
b) Multipotent
c) Unipotent
d) Totipotent

A

Multipotent

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2
Q

Which of the following cells/body parts contain stem cells?

a) All of the above
b) Zygotes
c) Umbilical cord
d) Bone Marrow
e) Blastocyst

A

a) All of the above

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3
Q

A: Fertilized
B: Blastocyst
C: Foetus-20 weeks

Which stage would you most expect to have cells capable of producing any cell type, including the placenta?

A, because totipotent cells are present
C, because totipotent cells are present
A. because pluripotent cells are present
A, B, and C
B, because multipotent cells are present
C, because multipotent cells are present
B, because pluripotent cells are present

A

A, because totipotent cells are present

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4
Q

A: Fertilized
B: Blastocyst
C: Foetus-20 weeks

Which stage would you most expect to have cells capable of producing any cell type except the placenta?

B, because multipotent cells are present
A, B, and C
A. because pluripotent cells are present
C, because totipotent cells are present
B, because pluripotent cells are present
C, because multipotent cells are present
A, because totipotent cells are present

A

B, because pluripotent cells are present

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5
Q

A: Fertilized
B: Blastocyst
C: Foetus-20 weeks

Which stage would you most expect to have cells capable of producing a limited range of different cell types?

A, because totipotent cells are present
A. because pluripotent cells are present
C, because totipotent cells are present
C, because multipotent cells are present
A, B, and C
B, because multipotent cells are present
B, because pluripotent cells are present

A

C, because multipotent cells are present

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6
Q

A: Fertilized
B: Blastocyst
C: Foetus-20 weeks

Which stage would you most expect to have cells capable of producing more stem cells?

A, because totipotent cells are present
B, because multipotent cells are present
C, because multipotent cells are present
A, B, and C
C, because totipotent cells are present
B, because pluripotent cells are present
A. because pluripotent cells are present

A

A, B, and C

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7
Q

A: Fertilized
B: Blastocyst
C: Foetus-20 weeks

Which letter contains cells with the most limited gene expression?

C
A
B
All of these cells have the same amount of gene expression

A

C

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8
Q

A: Fertilized
B: Blastocyst
C: Foetus-20 weeks

Which letter contains the most differentiated cells?

All of the above cells are equally differentiated
A
C
B

A

C

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9
Q

A: Fertilized
B: Blastocyst
C: Foetus-20 weeks

Which letter contains the least differentiated cells?

B
A
All of the above cells are equally differentiated
C

A

A

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10
Q

A: Fertilized
B: Blastocyst
C: Foetus-20 weeks

Which letter contains the cells most useful for studying the treatment of diseases?

A
B
C
All of the above cells are useful in studying the treatment of diseases

A

All of the above cells are useful in studying the treatment of diseases

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11
Q

True or False: Unicellular organisms can differentiate.

A

False

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12
Q

True or False: Tissues are only present in multicellular organisms

A

True

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13
Q

True or False: A tissue is a group of cells that each perform a different function.

A

False

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14
Q

True or False: Differentiation is the development of specialized structures and functions in cells.

A

True

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15
Q

True or False: Differentiated cells have a specialized structures and metabolism.

A

True

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16
Q

True or False: Differentiated cells are less efficient at performing a task then undifferentiated cells

A

False

17
Q

True or False: All cells in a multicellular organism contain the same genes

A

True

18
Q

True or False: Gene expression is regulated by proteins that bind to DNA

A

True

19
Q

True or False: Egg and sperm are non-differentiated cells.

A

False

20
Q

True or False: Cells differentiate during embryonic development

A

True

21
Q

True or False: Environmental conditions do not affect cell differentiation

A

False

22
Q

True or False: In the Himalayan rabbit, areas of darker pigment have different genes than areas of lighter pigmentation.

A

False

23
Q

True or False: The same genes are being expressed in the different cells of a flower

A

False

24
Q

Order the steps of gene expression, from 1 (first) to 7 (last).

  • Functional protein
  • Transcription
  • DNA
  • Folding
  • RNA
  • Translation
  • Amino acid chain
A
  1. DNA
  2. Transcription
  3. RNA
  4. Translation
  5. Amino acid chain
  6. Folding
  7. Functional protein

IB Biology (4 decks)

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