BIOSC-101 Lecture Notes - Lecture 10: Prokaryote, Interphase, Metaphase

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turquoiseturtle299

9 Sep 2020

School

Diablo Valley College

Department

Biological Science

Course

BIOSC-101

Professor

hoffman

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Document Summary

The cell cycle is the life cycle of a cell. It is the set of stages that a cell goes through during its lifetime. Cells go through 5 major stages of development: G1, synthesis (s), g2, mitosis (m), and cytokinesis. Interphase describes the activity in the cell during stages g1, s, and g2. This is the stage of cell when division (mitosis) does not occur. During interphase, the cell grows, acquires nutrients, and replicates both its chromosomes as well as its organelles. G1 phase is the first growth phase of interphase when cells increase in size and make proteins and organelles needed for normal cellular functions. S phase s refers to synthesis because this is where a supplicate copy of the chromosomes is synthesized (built). Dna is replicated in preparation for cell division. It is the 2nd growth phase where dna and the cell is checked to ensure it is ready to undergo cell division.

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