Cell Cycle and Cancer

​Period	​Ave. grade	​School Ave.	​Dist. Ave.
​4	​66 (-3 district)	68​	69​
​5	​67 (-2 district)	68​	69
​6	​72 (+3 district)	68​	69
​7	65​ (-4 district)	68​	69
​All	​67 (-2 district)	68​	69

​QBA 2 Results

23% correct

Lipase is an enzyme that breaks down lipids in the digestive system of humans. It functions best at a pH range of 4.0 to 5.0. When a person takes an antacid tablet to relieve heartburn, the antacid increases the pH to around 7 in certain areas of the digestive system. Which initial effect would most likely be caused by a change in pH?

23% correct

Lipase is an enzyme that breaks down lipids in the digestive system of humans. It functions best at a pH range of 4.0 to 5.0. When a person takes an antacid tablet to relieve heartburn, the antacid increases the pH to around 7 in certain areas of the digestive system. Which initial effect would most likely be caused by a change in pH?

Multiple Choice

Lipase is an enzyme that breaks down lipids in the digestive system of humans. It functions best at a pH range of 4.0 to 5.0. When a person takes an antacid tablet to relieve heartburn, the antacid increases the pH to around 7 in certain areas of the digestive system. Which initial effect would most likely be caused by a change in pH?

(23% correct)

• More lipids would be digested.

• Fewer lipids would be digested.

• The production of lipase molecules would increase.

• The production of lipase molecules would decrease.

31% correct

Some human diseases involve the unregulated growth of cells. Although some patients are not affected by these growths, many are harmed. Cells in harmful growths divide uncontrollably and can eventually invade other cells, tissues, and organs of the body. Some patients carry a mutation on one or more growth-suppressor genes (GSGs). GSGs help to repair damage to DNA. This mutation decreases the individual’s ability to fight these harmful growths. Recently, researchers reported on the results of using a combination of two types of medicine to treat patients with unregulated growths caused by a lack of functioning GSGs.

Given the properties of the medicine Y molecule, which mechanism is most likely responsible for medicine Y's entry into cells?

Possible Answers:
​ - Osmosis
- Simple diffusion
- Exocytosis
- Active transport

Match

Match the following

​

• Simple diffusion

• Exocytosis

Passage of water molecules only!

Passage of SMALL molecules

Passage of substance OUT of the cell

Requires energy

• Passage of water molecules only!

• Passage of SMALL molecules

• Passage of substance OUT of the cell

• Requires energy

Osmosis - water only

Simple diffusion - small molecules

Exocytosis - substances leave the cell

Active transport - requires energy

​

Multiple Choice

Some human diseases involve the unregulated growth of cells. Although some patients are not affected by these growths, many are harmed. Cells in harmful growths divide uncontrollably and can eventually invade other cells, tissues, and organs of the body. Some patients carry a mutation on one or more growth-suppressor genes (GSGs). GSGs help to repair damage to DNA. This mutation decreases the individual’s ability to fight these harmful growths. Recently, researchers reported on the results of using a combination of two types of medicine to treat patients with unregulated growths caused by a lack of functioning GSGs.

Given the properties of the medicine Y molecule, which mechanism is most likely responsible for medicine Y's entry into cells?

• osmosis

• exocytosis

• active transport

• simple diffusion

Multiple Choice

The diagram represents three sections of a cell membrane, showing three different methods involved in the transport of various molecules across the membrane.

Which of the following are methods of active transport?

• Method A and C

• Only Method B

• Only Method A

• Method B and C

​Low Concentration High Concentration High Concentration

​High Concentration Low Concentration Low Concentration

​Notebook, Page 79

Match

Match each phase of the cell cycle with what occurs in the cell.

• The cell grows and performs its normal cell functions.

• The cell replicates its DNA.

• The cell growths and prepares for the nuclear division, and tries to fix the DNA replication errors.

• The nucleus divides

G₁

S

G₂

Mitosis

• G₁

• S

• G₂

• Mitosis

Reorder

Reorder the following

• G1 - Gap 1

• S - Synthesis

• G2 - Gap 2

• M - Mitosis

1

2

3

4

• 1
• 2
• 3
• 4

We will watch a video together

As you watch, pay attention to two facts you learned by watching this video, or two facts that you consider important. You will be asked to share!

Open Ended

Write two facts you learned by watching this video, or two facts that you consider important

Team Discussion!

​Based on what you watched in the video, compare (similarities) and contrast (differences) normal and cancer cells.

Multiple Choice

What is cancer?

• A condition caused by lack of sleep
• A genetic disorder passed down through generations
• A disease caused by the uncontrolled division of abnormal cells
• A type of infectious disease caused by bacteria

Drag and Drop

A cancer cell spends the least amount of time in the ​

Placeholder

, and the most time in the ​

Placeholder

phase.

Drag these tiles and drop them in the correct blank above

interphase

mitotic

S phase

Cancer is uncontrolled or unregulated cell growth.

​

Review image.

Cancer cells are in blue.​

​Cancer

​

Cancer cells develop when there is a problem / a failure in the Cell Cycle. ​

​

The cell cycle is a regulated process, meaning that it is controlled.​

​

​Cancer

​

​Cancer

​

Cancer is uncontrolled or unregulated cell growth.

​

Cancer cells appear when the cell cycle is not working properly. ​

​

​

Multiple Select

Cancer is ...

(Choose ALL that apply)

• uncontrolled

  cell growth

• unregulated

  cell growth

• rapid

  cell growth

• normal

  cell growth

Multiple Choice

Uncontrolled cell growth leads to

• cancer

  cell growth

• normal

  cell growth

Open Ended

If you were a scientists working on cancer research, what would you do (what phases would you focus on; what would you research on?)