Cell Theory & Cell Organelles

Question 1

What are the 3 parts to the cell theory?

Answer 1

1. All living things are made up of one or more cells.
2. The cell is the simplest unit that can carry out all life processes.
3. All cells come from other cells; they do not come from non-living matter.

Question 2

What is a Prokaryote?

Answer 2

Single celled life forms
Have NO nucleus.
Simple organisms Ex. Bacteria like E. Coli

Question 3

What is a Eukaryote?

Answer 3

May be single-celled or multi-celled organisms
HAVE a nucleus & membrane bound organelles
More complex organisms Ex. Amoeba, animals

Question 4

What are the 2 cell categories that cells can be classified into?

Answer 4

prokaryotes or eukaryotes

Question 5

What life processes do all cells need to do to maintain life?

Answer 5

• Grow/reproduce
• Repair
• Obtain nutrients for energy
• Remove waste
• Respond to the surrounding environment

Question 6

What is an organelle?

Answer 6

a membrane bound structure within a cell that has a specific function that works together with other organelles to meet the life needs of the cell.

Question 7

Name 3 organelles that are plant cells have that are different or that animal cells do not have.

Answer 7

1. Cell wall
2. Chloroplast
3. One large vacuole (opposed to many small vacuoles)

Question 8

Do eukaroytes have a nucleus?

Answer 8

yes

Question 9

Do prokaroytes have a nucleus?

Answer 9

no

Question 10

What is biology

Answer 10

The study of life

Question 11

Is a eukaryote a membrane bound organelle?

Answer 11

yes

Question 12

Which are larger; Eukaryotas or prokaryotes?

Answer 12

Eukaryotes

Question 13

True or False; All living things are made up of one or more cells?

Answer 13

True

Question 14

True or False; All cells come from non-living matter?

Answer 14

False: All cells come from other cells; they do not come from non-living matter.

Question 15

True or False; A cell is the most complicated unit in your body?

Answer 15

False: The cell is the simplest unit that can carry out all life processes.

Question 16

What is the function of the Cytoplasm?

Answer 16

The substance made mostly of water, that organelles within the cell are suspended in. The may also contain other substances such as proteins, salts, etc.

Question 17

What is the function of the cell membrane?

Answer 17

Provides support and allows some substances (ie. water, oxygen) to enter or leave the cell.

Question 18

What is the function of the nucleus?

Answer 18

Contains DNA, which is genetic information (instructions) about how to control the cell.

Question 19

What is the function of the mitochondria?

Answer 19

Convert stored energy (glucose) into usable energy. Cells that are very active (i.e. muscle cells) have lots of mitochondria, while less active cells (i.e. fat cells) only have one or two mitochondria.

Question 20

What is the function of the vacuoles?

Answer 20

A fluid filled sac that contains holds substances and water. Plants only have one central vacuole, whereas animals have many small vacuoles.

Question 21

What is the function of the cell wall?

Answer 21

The outside membrane of a plant cell that provides support and protection from physical injury. ONLY present in plant cells.

Question 22

What is the function of the chloroplasts?

Answer 22

Give the leaves the green colour and uses chlorophyll to turn light into energy (glucose). ONLY present in plants.