B2 - Cell Division ✅ Flashcards
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1
Q
Define unicellular.
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A
Organisms that are formed of only one cell
E.g. Prokaryotic cells
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2
Q
Define multicellular.
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A
Organisms that are formed of many cells
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3
Q
What is cell differentiation?
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A
The process of a cell becoming specialised; specialised cells are the result of differentiation of stem cells
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4
Q
What are stem cells?
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A
Cells that are undifferentiatied
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5
Q
What is an embryo?
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A
A very young multicellular organism, formed by the process of fertilisation
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6
Q
What are embryos made up of?
Hint: A certain type of cell
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A
Stem cells
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7
Q
What is a cell cycle?
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A
A series of stages during which a cell divides to make new cells
Other: The process of mitosis
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8
Q
What is a chromosome?
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A
A structure containing one molecule of DNA
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9
Q
How many pairs of chromosomes do humans have?
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A
23 pairs
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