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Cell Division Essentials
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1
Question
What is the main topic of chapter 7?
Page 1
Answer
Cell Division
2
Question
How does the body heal?
Page 1
Answer
Through cell division
3
Question
What is the difference between growth of non-living material and living organism?
Page 1
Answer
Living organisms grow by cell division
4
Question
Where does life of all multicellular organisms start?
Page 1
Answer
From a single cell
5
Question
According to cell theory, how does every cell arise?
Page 1
Answer
From pre-existing cells
6
Question
What are the two phases of the cell cycle?
Page 1
Answer
Interphase and M-phase
7
Question
What occurs during interphase?
Page 1
Answer
Cell undergoes actual growth
8
Question
What is M-phase?
Page 1
Answer
Period of division
9
Question
What is interphase?
Page 1
Answer
Stage between two successive cell divisions
10
Question
During interphase, is the cell preparing for division?
Page 1
Answer
Yes, highly active
11
Question
What are the sub-phases of interphase?
Page 1
Answer
G1-phase, S-phase, G2-phase
12
Question
What is G1-phase also known as?
Page 1
Answer
First gap period or first growth period
13
Question
What happens immediately after mitosis in G1?
Page 1
Answer
mRNA, rRNA, tRNA, protein synthesis
14
Question
What is S-phase?
Page 1
Answer
Synthesis phase where DNA is replicated
15
Question
What else happens in S-phase besides DNA replication?
Page 1
Answer
Histone proteins are synthesized
16
Question
What is G2-phase?
Page 1
Answer
Second growth phase
17
Question
What metabolic activities occur in G2-phase?
Page 1
Answer
Essential for cell division
18
Question
What proteins are synthesized during G2-phase?
Page 1
Answer
Various proteins for cell division
19
Question
What occurs in animal cells during G2-phase?
Page 1
Answer
Synthesis of a daughter pair of centrioles
20
Question
How long is G1 phase?
Page 1
Answer
8 hours or more
21
Question
How long is S phase?
Page 1
Answer
6-8 hours
22
Question
How long is G2 phase?
Page 1
Answer
2-5 hours
23
Question
How long is M phase?
Page 1
Answer
1-3 hours
24
Question
What is mitosis?
Page 1
Answer
Period of division involving karyokinesis and cytokinesis
25
Question
What does karyokinesis mean?
Page 1
Answer
Nuclear division
26
Question
What does cytokinesis mean?
Page 1
Answer
Division of cytoplasm
27
Question
In which cells does amitosis occur?
Page 2
Answer
Unicellular organisms, abnormal cells, old cells, foetal membrane cells
28
Question
What is amitosis?
Page 2
Answer
Simplest mode of cell division
29
Question
During amitosis, what elongates?
Page 2
Answer
Nucleus due to constriction
30
Question
What results from amitosis?
Page 2
Answer
Two daughter nuclei and cytoplasm division