Lab 2 - Bacteria and Protists

Question 1

What are the three domains?

Answer 1

Eukarya, Bacteria, Archea

Question 2

What do the three domains have in common?

Answer 2

Cells, DNA, RNA, Cell membrane, ribosomes, cytosol

Question 3

What are the three bacteria shapes?

Answer 3

Spheres (Cocci) Rods (Bacilli) Spirals

Question 4

What bacteria shape is pictured?

Answer 4

Sphere (Cocci)

Question 5

What bacteria shape is pictured?

Answer 5

Rods (Bacilli)

Question 6

What bacteria shape is pictured?

Answer 6

Spirals

Question 7

Diatoms are composed largely of _________ instead of cellulose

Answer 7

Silica

Question 8

What is pictured?

Answer 8

Chlamydomonas

Question 9

What is pictured?

Answer 9

Chlamydomonas (Microscopic view)

Question 10

What is pictured?

Answer 10

Gloeocapsa

Question 11

What is pictured?

Answer 11

Oscillatoria

Question 12

What is pictured?

Answer 12

Anabaena

The small circles are heterocysts. The rest of the cells are vegetative cells.

Question 13

What is pictured?

Answer 13

Spirogyra

Contains spiral chloroplasts. Domain Eukarya.

Question 14

What is pictured?

Answer 14

Volvox

Contains vegetative cells and daughter colonies.

Domain Eukarya.

Question 15

What is pictured?

Answer 15

Euglena.

Contains an eyespot (red dot). Domain Eukarya.

Question 16

What is pictured?

Answer 16

Diatoms

Question 17

What is pictured? (Learn diagram)

Answer 17

Fucus.

Question 18

What is pictured?

(Learn diagram)

Answer 18

Sargassum

Question 19

What are three commercial products that come from red algea?

Answer 19

• Red algae are also used to produce agar that is used as a food additive.
• They are rich in calcium and also used in vitamin supplements.
• Red alga is the most important commercial food in Japan and in the region of North Atlantic.
• Agar or agar-agar, a jelly-like substance which is used in puddings, dairy toppings and other instant food products is extracted from Red algae.