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Bibliotek

Copy of bk Copy of Unit 3 Remediation - Practice (12/10/2025) (5/2/2026)

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Sidst opdateret 20 days ago
15 Spørgsmål
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Spørgsmål 1
1.

Match the stage of the Cell Cycle to its description.

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G2 Phase

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The cell grows for the first time and duplicates (copies) its organelles.

G1 Phase

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The cell duplicates (copies) its DNA.

Mitosis "M" Phase

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The cell grows for a second time and goes through the checkpoint.

Synthesis "S" Phase

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The nucleus divides to form two identical healthy daughter cells.

Spørgsmål 2
2.

Label the diagram of the cell cycle.

Andre svarmuligheder:
DNA doubles
DNA replication; mutations (changes to DNA) possible
Cell splits and produces 2 healthy daughter cells
Final checkpoint before healthy daughter cells are made
Cell grows. Organelles double.
Spørgsmål 3
3.

The purpose of the cell cycle is .

Spørgsmål 4
4.

Match each of the 4 steps of mitosis to its definition.

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Prophase

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The step of Mitosis when the chromosomes are pulled apart/away to opposite sides of the cell.

Metaphase

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The step of Mitosis when two nuclei are formed.

Anaphase

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The step of Mitosis when the chromosomes line up in the middle of the cell.

Telophase

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The step of Mitosis when the chromosomes become packed/condensed and are visible.

Spørgsmål 5
5.

Christian is observing some cells under the microscope and made the following observations:

  • No visible nucleus

  • Spindle fibers are present

  • Chromosomes are lined up in the center

What phase of the cell cycle is he MOST LIKELY observing?

Spørgsmål 6
6.

A student observes a cell under the microscope and records their observations:

  • Two nuclei are visible and forming.

  • Spindle fibers are breaking down and almost gone.

  • The cell has not split yet.

What phase of cell division is this?

Spørgsmål 7
7.

When cell reproduction occurs and is unregulated, this causes cells to grow out of control. This uncontrolled growth can produce...

Spørgsmål 8
8.

Which part of the cell cycle is when mutations (changes) to DNA might occur?

Spørgsmål 9
9.

Why is it important to keep the cell cycle regulated?

Spørgsmål 10
10.

The order and sequence of the ______________ is what makes the difference between one gene and another.

Spørgsmål 11
11.

Label each component of DNA below. Move ONE correct answer to each box. Not all answers will be used.

Andre svarmuligheder:
Hydrogen Bond
Deoxyribose Sugar
Phosphate
Carbohydrate
Nucleus
Nucleotide
Nitrogen Base
Spørgsmål 12
12.

A segment of a DNA strand is show below.

TCC ACT GAA

Which of these is the correct complementary DNA strand for the segment shown?

Three models of DNA are shown in the diagram below.

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Spørgsmål 13
13.

What is the function of the nitrogen bases of DNA?

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Spørgsmål 14
14.

What is the function of the hydrogen bonds in DNA?

Spørgsmål 15
15.

What is the function of deoxyribose and phosphate in DNA?