Life Processes

Question 0

How was the cell theory created?

Answer 0

Proposed in 1800s after a microscope was invented and cork was put under it

Question 1

What are the most important sections if life?

Answer 1

1.The physical organization-cell theory 2. The activities-funds mental processes 3. The chemical make-up- functional biochemistry 4. The evolutionary history-origins

Question 2

What is the cell theory?

Answer 2

1. Life is composed of cells and cell products
2. Cell is smallest living unit
3. Cells come from pre-existing cells

Question 3

Why is life cellular?

Answer 3

1. Life is characterized by order
2. Life can only persist if it remains organized
3. Cell allows for entry of essential nutrients

Question 4

Is there a problem with the cell theory?

Answer 4

Yes. It doesn’t allow for viruses or origins of life

Question 5

What are the life processes?

Answer 5

Nutrition, respiration, synthesis, excretion, response, homeostasis, growth, reproduction,

Question 6

What is a cell doing when it makes copies of itself?

Answer 6

Reproduction

Question 7

What is a cell doing when it neutralizes or gets rid of waste?

Answer 7

Excretion

Question 8

What is a cell doing when it increases it’s volume?

Answer 8

Growth

Question 9

What is a cell doing when it manufactures the complex molecules that it needs?

Answer 9

Synthesis

Question 10

What is a cell doing when it acquires materials from it’s environment?

Answer 10

Nutrition

Question 11

What is a cell doing when it detects changes and alters it’s actions?

Answer 11

Response

Question 12

What is a cell doing when it harvests energy from existing molecules?

Answer 12

Respiration

Question 13

What is a cell doing when it keeps everything in balance in the cell?

Answer 13

Homeostasis

Question 14

Define Nutrition:

Answer 14

Cells take in what they need from their surroundings

Question 15

Define Respiration:

Answer 15

Nutrients are broken down to release potential energy

Question 16

Define Synthesis:

Answer 16

Cells use raw materials acquired through nutrition and energy from respiration to synthesize new substances such as proteins, lipids, carbohydrates, and nucleic acids

Question 17

Define Excretion:

Answer 17

Substances are turned into unusable products and are neutralized/eliminated

Question 18

Define response:

Answer 18

Substances in cells that are sensitive to environment changes as well as other substances (especially protein) that can cause changes in the cell, allowing cells to respond

Question 19

Define Homeostasis:

Answer 19

Healthy cells will stay in a steady state even if the environment changes