Unit 8 - Bacteria

Question 1

Archaea and bacteria are very ________, _____________ organisms.

Answer 1

simple, microscopic

Question 2

Monerans is an old kingdom name that refers to what?

Answer 2

Archaea and bacteria

Question 3

Directions: True or False? If false, correct the statement.

Most bacteria are too small to be seen. They are prokaryotic cells, meaning they have no nucleus.

Answer 3

True

Question 4

Directions: Answer the statement with the best available answer.

Bacteria and archaea are single celled, but sometimes stick together in strands or…

A. Bactillus
B. Spirillus
C. Film
D. Coccus

Answer 4

C. Film

Question 5

Cyanobacteria are an example of an organism that can make their own _______. Both archaea and bacteria have this capability.

Answer 5

food

Question 6

Directions: True or False? If false, correct the statement.

All bacteria and archaea do not contain cell walls.

Answer 6

False. Some bacteria and archaea contain cell walls.

Question 7

Directions: Answer the statement with the best available answer.

The cell wall of archaea and bacteria is made out of…

A. Cellulose
B. Capsule
C. Spirilla
D. None of the above

Answer 7

D. None of the above

Question 8

Directions: True or False? If false, correct the statement.

All bacteria and archaea need oxygen to live (aerobic).

Answer 8

False. Most bacteria and archaea need oxygen to live (aerobic), but some do not (anaerobic).

Question 9

Directions: After being provided some locations, determine whether they are related to bacteria or archaea.

Usually found in soil, water, other organisms.

Answer 9

Bacteria

Question 10

Archaea and bacteria usually reproduce asexually by the process of ________________.

Answer 10

binary fission

Question 11

Directions: True or False? If false, correct the statement.

The bacteria we hear in the news is usually the good news.

Answer 11

False. The bacteria we hear in the news is usually the bad news.

Question 12

How do bacteria obtain their energy?

Answer 12

By consuming other organisms, but usually through absorbing nutrients

Question 13

Directions: Answer the statement with the best available answer.

Most bacteria are…

A. Destructive
B. Helpful
C. Eukaryotic
D. None of the above

Answer 13

B. Helpful

Question 14

Single celled organisms come in three main shapes. List them.

Answer 14

1. Round - Cocci
2. Rodlike - Bacilli
3. Spiral - Spirilla

Question 15

This diagram is an example of what?

Answer 15

The typical structure of bacteria

Question 16

There are three main colonies that bacterial cells live in. Please list all three.

Hint: DSS

Answer 16

1. Diplo - two
2. Strepto - chain
3. Staphylo - cluster

Question 17

What shape bacteria is this?

Answer 17

Bactilli (rodlike)

Question 18

What type of bacterial disease is this?

Answer 18

Streptococcus

Explanation:

Strepto, meaning chain, and coccus, meaning round, gives us an accurate description of this pathogenic disease.

Question 19

Cyanobacteria are bacteria that can make their own food. They contain _____________ to go through the process of ________________.

Answer 19

chlorophyll, photosynthesis

Question 20

Single cyanobacterial cells live in long ________ or _________ (blooms).

Answer 20

chains, strands

Question 21

Some cyanobacteria have additonal red pigment, which causes which animal to turn pink when they eat the cyanobacteria?

Answer 21

Flamingos

Question 22

In birth, flamingos are actually what color?

Answer 22

White

Question 23

Directions: True or False? If false, correct the statement.

Some scientists believe that cyanobacteria may have given rise to the first plants on earth.

Answer 23

True

Question 24

Archaea are closely related to bacteria, however, they are found in extreme conditions. List three conditions that they love, and then give geographical examples of them.

Answer 24

1. Heat loving - volcano, hot geyser
2. Salt loving - Dead Sea, Great Salt Lake, salt flats
3. Methane making - cow intestines, swamps

Question 25

Previously, we went over the fact that most bacteria are helpful. What is the actual ratio of helpful (or at least not harmful) bacteria to pathogenic bacteria?

Answer 25

99:1

Question 26

Many bacteria ____________ dead material and _________ the nutrients into the environment.

Answer 26

break down, recycle ## Footnote **Extra information:** Bacteria start breaking down the complex compounds found in dead plants and animals. These compounds include proteins, fats, and carbohydrates, which are rich sources of energy and nutrients for bacteria. As bacteria break down these compounds, they convert them into simpler substances. This process releases nutrients such as nitrogen, phosphorus, and potassium back into the soil, which are essential for the growth of plants.

Question 27

What is **nitrogen fixation**?

Answer 27

When bacteria take in nitrogen from the air and change it to a form that is useful for plants

Question 28

**Directions: This question has a high possibility of being a bonus question.** Nitrogen gas makes up what percentage of our air?

Answer 28

78%

Question 29

Explain the difference between **biomedical** and **bioremediation**.

Answer 29

* **Biomedical** - A practice that focuses on improving health and treating diseases through biology and medicine. * **Bioremediation** - A practice that is about using biology to clean up environmental pollution, such as oil spills and hazardous wastes.

Question 30

Biomedical and bioremediation involve _________ bacteria.

Answer 30

helpful

Question 31

Biotechnology is a _______ term that encompasses various applications. It helps make many everyday items, such as _________, _____________, and __________.

Answer 31

broad, insulin, antibiotics, vaccines ## Footnote **Added information:** Biotechnology is a broad field that encompasses various applications, including biomedical technologies and bioremediation, among others. It integrates biological sciences with engineering technologies to develop products and processes for a wide range of uses in healthcare, agriculture, industry, and environmental management.

Question 32

Some helpful bacteria help us digest ______ in our _________ (gut). Many make food products for us, such as ________, milk, _________, and _______.

Answer 32

food, stomach, cheese, pickles, bread

Question 33

**Directions: True or False? If false, correct the statement.** Some helpful archaea break down the sugar lactose into lactic acid by the process of fermentation.

Answer 33

False. Some helpful **bacteria** break down the sugar lactose into lactic acid by the process of fermentation.

Question 34

Any bacteria that causes disease is known as what?

Answer 34

A pathogen

Question 35

Some pathogenic bacteria produce poisons called ________.

Answer 35

toxins

Question 36

Leprosy, gangrene, diptheria, whooping cough, and tetanus are all examples of what?

Answer 36

Bacterial diseases

Question 37

**Directions: Answer the statement with the best available answer.** Botulism, in the form of food poisoning, is considered one of the most... **A.** Infectious substance on earth **B.** Bacterial substance on earth **C.** Deadly substance on earth **D.** All of the above

Answer 37

C. Deadly substance on earth

Question 38

While antibodies kill the bacteria inside of your body, vaccines _________ the disease.

Answer 38

prevent

Question 39

What are a few examples of antibiotics?

Answer 39

Amoxicillin, penicillin, and doxycycline

Question 40

Listerine is a popular mouth wash company. What is the scientific name for mouth wash?

Answer 40

Antiseptic

Question 41

In history, there have been instances where ________ spores have been weaponized for use in ____________________.

Answer 41

anthrax, biological warfare