BIOL107 Lecture 10: Lecture 10 Cell Cycle Student 16

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burgundybeetle55

8 Apr 2017

School

University of Alberta

Department

Biology (Biological Sciences)

Course

BIOL107

Professor

Sheryl Gares

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BIOL107 Full Course Notes

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Document Summary

Focus: cell division is essential for all cells to pass their genetic information onto the progeny and for the continuation of the species. We will look at two different forms of asexual cell division (not meiosis) binary division in prokaryotes and mitosis in eukaryotes. Eukaryotes have a more complicated cell division cycle than prokaryotes because of the increased complexity of the cell (dna in the nucleus) and the fact that eukaryotes have multiple chromosomes that must be equally segregated into daughter cells. Objectives: for the exam you should be able to: Define: binary fission, lag, log, stationary and death phase, cell growth, mitosis, interphase, g1, s, g2, m, mitosis, prophase, prometaphase, metaphase, anaphase, telophase, cytokinesis, chromosomal condensation, dna packaging, checkpoint, centrosome, centromere, chromatid, chromatin, chromosome. Describe each phase of prokaryotic growth of a culture. Understand why mitosis is more complicated than binary fission. Describe, in detail, each phase of mitosis. Identify all phases of the cell cycle.

Related Questions

Part A:

In prokaryotes and eukaryotes cell reproduction is similar in that it requires some kind of signal to proceed, DNA replication, careful separation of the DNA into two equal portions, and division of the cytoplasm. How is cell reproduction different in prokaryotes and eukaryotes?

Select one:

a. In a eukaryotic organism, the signals for cell division are usually not related to the environment but to the function of the entire organism.

b. Eukaryotic cells constantly divide whenever environmental conditions are adequate and the cells are large enough.

c. The linear chromosomes in prokaryotes are constantly being updated.

d. Prokaryotic cell division requires cytokinesis before mitosis because of their small size.

e. The sexual phase of most prokaryotes (bacteria) is essential to the rapid cell division required for infection.

Part B:

What does the name Cyclin Dependent Kinase stand for?

Select one:

a. A protein important to the cell cycle that is dependent on DNA synthesis.

b. An enzyme that cuts DNA so that chromosomes can segregate.

c. An enzyme that phosphorylates other proteins using ATP only when the protein Cyclin is bound to the enzyme.

d. An enzyme that rolls along microtubules dragging a vesicle.

e. An enzyme that connects chromosomes to the spindle fiber.

Part C:

The Cell Cycle is divided into Mitosis, Cytokinesis, and Interphase. Mitosis can be ordered into the following phases:

Select one:

a. Prophase/Prometaphase/Metaphase/Anaphase/Telophase

b. Anaphase/Prometaphase/Metaphase/Prophase/Telophase

c. Metaphase/Anaphase/Telophase/Prophase/Prometaphase

d. Telophase/Prophase/Prometaphase/Metaphase/Anaphase

e. Anaphase/Telophase/Prophase/Prometaphase/Metaphase

Part D:

The Cell Cycle is divided into Mitosis, Cytokinesis, and Interphase. Interphase can be ordered into the following phases:

Select one:

a. S/G1/G2

b. G2/G1/S

c. G1/S/G2

d. G2/S/G1

e. G1/G2/S

amethystyak657

What function(s) does mitosis fulfill for multicellular organisms?

Match the phrase on the left with the part of the cell cycle on the right.

DNA replication is checked for accuracy