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Biology > Chapter 8- Key Terms And Concepts > Flashcards

Chapter 8- Key Terms And Concepts Flashcards

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AP® Biology flashcards Biology 101 flashcards
1
Q

How does the cell go about apoptosis?

A

Lysosomes with the help of enzymes break down the cell components and then your immune system finishes off the cell.

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2
Q

Define necrosis

A

Cell death due to trauma

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3
Q

Which enzymes unzip the DNA

A

Helicase enzymes

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4
Q

What is binary fission?

A

The process by which a cell duplicates an exact copy of itself

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5
Q

What is the first step in binary fission?

A

DNA replicates

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6
Q

What is the second step of binary fission?

A

The chromosomes attach to the cell membrane

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7
Q

What is the 3rd step of binary fission?

A

Cell growth between the chromosomes separate the chromosomes creating identical daughter cells

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8
Q

What are chromosomes made of?

A

Chromatin

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9
Q

What are the 3 phases of interphase?

A

G1
S
G2

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10
Q

What happens in G1?

A

Cellular contents are duplicated. BESIDES the chromosomes

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11
Q

What happens in the S phase

A

The duplication of the genetic material

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12
Q

What happens in the G2 phase?

A

The cell double checks everything

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13
Q

True or false. Cytokinesis occurs after Mitosis

A

True

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14
Q

What are the “Gap Periods” of interphase?

A

G1 and G2

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15
Q

What is the synthesis period of interphase?

A

The S phase

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16
Q

What is the resting phase of interphase?

A

G0

17
Q

What is the order of phases in Mitosis?

A 
Prophase
Pro metaphase
Metaphase
Anaphase
Telophase
18
Q

What occurs in prophase?

A

Nuclear envelopes break down

19
Q

What occurs in metaphase?

A

Replicated chromosomes align along the cell center

20
Q

What occurs in anaphase?

A

Chromosomes separated

21
Q

What occurs in telophase?

A

Cells divide and nuclear envelopes form

22
Q

How does cancer form?

A

Cell growth gets out of control and DNA is not checked

23
Q

What is the name of the enzyme that is sent out after tumors get too big?

A

Telomerase

24
Q

What do oncogenes do?

A

Controls the speed of cell division

25
Q

Define apoptosis

A

Programmed cell death

Biology (8 decks)

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