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BSC 2010 Exam 4 Questions with Answers
(100% Correct Answers)
Where do cells come from? Answer: Cells come from other cells through cell
division
Do all cells always divide? Answer: No, some cells only divide during growth
periods
Why do cells divide? Answer: 1) Grow
2) Development
3) Repair
4) Regeneration
5) Reproduction -> only reason single-celled organisms divide
Cell division in Prokaryotes Answer: - All are single-celled
- One chromosome
- Circular DNA
- Copied through replication
Prokaryotes divide through ________ Answer: Binary fission
Mitosis and Meiosis are not the same as _____ Answer: Binary fission
Binary fission consists of Answer: Replicating the DNA and then extending the
cell until it breaks and two cells are formed
Can eukaryotic cells divide through binary fission? Answer: No, they are more
complicated and have more than one chromosome and membrane bound
organelles that need to be separated equally across the two new cells.
, 2
How do organelles divide? Answer: 1) membrane-bound organelles like
mitochondria and chloroplasts divide on their own through a specific division
process.
2) ER and Golgi don't divide, the process consists of the membrane
constituents coming apart into small parts when the cell divides. It later
reintegrates.
How are the multiple chromosomes allocated throughout the cells? Answer:
Eukaryotic cell divisions
Meiosis Answer: It is mainly used for reproduction produces halves of the
original chromosome number of cells.
Mitosis Answer: Process commonly used for cell growth, repair and
regeneration of other cells.
What is the cell cycle? Answer: Tightly regulated set of events that culminates
in cell division
The cell cycle is unique to eukaryotes (T/F) Answer: True
What is the cell cycle controlled by? Answer: Enzymes
Where does cell division take place in the cell cycle? Answer: M phase
Why is the M phase named like that? Answer: It is where mitosis occurs
How many sub-phases does the interphase have? Answer: 3
What happens in the S phase? Answer: - Chromosomes duplicate
- DNA synthesis
What happens in the gap phases G1 and G2? Answer: - Cell growth
- Preparation for the next phases
- Separate the S phase from the M phase
BSC 2010 Exam 4 Questions with Answers
(100% Correct Answers)
Where do cells come from? Answer: Cells come from other cells through cell
division
Do all cells always divide? Answer: No, some cells only divide during growth
periods
Why do cells divide? Answer: 1) Grow
2) Development
3) Repair
4) Regeneration
5) Reproduction -> only reason single-celled organisms divide
Cell division in Prokaryotes Answer: - All are single-celled
- One chromosome
- Circular DNA
- Copied through replication
Prokaryotes divide through ________ Answer: Binary fission
Mitosis and Meiosis are not the same as _____ Answer: Binary fission
Binary fission consists of Answer: Replicating the DNA and then extending the
cell until it breaks and two cells are formed
Can eukaryotic cells divide through binary fission? Answer: No, they are more
complicated and have more than one chromosome and membrane bound
organelles that need to be separated equally across the two new cells.
, 2
How do organelles divide? Answer: 1) membrane-bound organelles like
mitochondria and chloroplasts divide on their own through a specific division
process.
2) ER and Golgi don't divide, the process consists of the membrane
constituents coming apart into small parts when the cell divides. It later
reintegrates.
How are the multiple chromosomes allocated throughout the cells? Answer:
Eukaryotic cell divisions
Meiosis Answer: It is mainly used for reproduction produces halves of the
original chromosome number of cells.
Mitosis Answer: Process commonly used for cell growth, repair and
regeneration of other cells.
What is the cell cycle? Answer: Tightly regulated set of events that culminates
in cell division
The cell cycle is unique to eukaryotes (T/F) Answer: True
What is the cell cycle controlled by? Answer: Enzymes
Where does cell division take place in the cell cycle? Answer: M phase
Why is the M phase named like that? Answer: It is where mitosis occurs
How many sub-phases does the interphase have? Answer: 3
What happens in the S phase? Answer: - Chromosomes duplicate
- DNA synthesis
What happens in the gap phases G1 and G2? Answer: - Cell growth
- Preparation for the next phases
- Separate the S phase from the M phase
