General Biology 1 (Part IV)

Question 1

What is the topic about?

Answer 1

When cells grow old or become damaged, they die, and new cells take their place. Sometimes this orderly process breaks down, and abnormal or damaged cells grow and multiply when they shouldn’t. These cells may form tumors, which are lumps of tissue.

Question 2

What happens if the cell does not undergo cell cycle?

Answer 2

Unregulated Cancer Division

Question 3

What are the 6 differences of Cancer Cells and Normal Cells

Answer 3

1. Cancer Cells divide more rapidly
2. Cancer cells can divide outside the body.
3. Cancer cells use the energy and resources of other cells.
4. Cancer cells vary in shape, size, of the nucleus, and behavior.
5. Cancer cells exhibits metastasis.
6. Cancer cells do not undergo apoptosis in normal conditions.

Question 4

4 Info’s about the Normal Cells

Answer 4

1. Vary in shape and sizes
2. The nucleus that is larger and darker than normal
3. Abnormal number of chromosomes arranged in a disorganized fashion
4. Cluster of cells without a boundary

Question 5

How cancer cells develops? (3)

Answer 5

1. When a cellular regulator or a cell cycle checkpoints fails.
2. A benign tumor may lead to the development of malignant tumors.
3. More mutations may happen, causing the loss of genes responsible for cell cycle regulation.

Question 6

3 functions of Cell Membrane (Last Topic)

Answer 6

Transportation
Communication
Protection

Question 7

2 New Function of the Cell Membrane

Answer 7

It regulates the flow of materials going inside and
outside of the cell.

It serves as a protective layer and is important in
cell-to-cell communication and adhesion.

Question 8

It is the biological model that explains the nature and function of cell membrane.

Answer 8

Fluid Mosaic Model

Question 9

Fluid Mosaic Model is proposed by?

Answer 9

Seymour Jonathan Singer and
Garth L. Nicolson in 1972.

Question 10

4 Components of the Cell Membrane

Answer 10

Phospholipid Bilayer
Membrane Lipids
Membrane Proteins
Membrane Carbohydrates

Question 11

4 Components of the Cell Membrane

Phospholipid Bilayer

Answer 11

Makes up most of the Membrane’s

Question 12

4 Components of the Cell Membrane
Regulates the membrane fluidity and permeability

Answer 12

Membrane Lipids (Sterol)

Question 13

4 Components of the Cell Membrane

Membrane Lipids (Glycolipids)

Answer 13

Facilitates communication of cells

Question 14

4 Components of the Cell Membrane

Maintain membrane stability and aid in cell communication

Answer 14

Membrane Lipids

Question 15

4 Components of the Cell Membrane

3 Parts Membrane Proteins

Answer 15

Anchored Proteins
Integral Proteins
Peripheral Proteins

Question 16

3 Components of the Membrane Proteins

Act as passageway of receptors for ions and
molecules.

Answer 16

Integral Proteins

Question 17

3 Components of the Membrane Proteins

It mainly work to support the cell.

Answer 17

Peripheral Proteins

Question 18

3 Components of the Membrane Proteins

Propagating molecular signals & enhancing
the activities of other proteins

Answer 18

Anchored Protein

Question 19

How do cells transport materials across membrane?

Answer 19

Passive Transport
Vesicle Transport

Question 20

2 Passive Transports

Answer 20

Diffusion
Osmosis

Question 21

3 types of Passive Transport : Osmosis

Answer 21

Hypotonic Solution
Isotonic Solution
Hypertonic Solution

Question 22

2 types of Diffusion

Answer 22

Faciliated Diffusion
Active Diffusion

Question 23

allows many bodily functions to be possible, such as the transmission of electrical signals between neurons and the movement of muscles

Answer 23

Pump

Question 24

2 Types of Vesicle Transport

Answer 24

Endocytosis
Exocytosis

Question 25

Transport of macromolecules across plasma membrane

Answer 25

Vesicle Transport