Unit 19 Bacteria

Question 1

Bacteria are (unicellular/multicellular) (prokaryotes/eukaryotes), some can make their own food (___________) and some consume organic material (________________)

Answer 1

unicellular, prokaryotes, autotroph, heterotroph

Question 2

Bacteria is a prokaryotes, meaning they don’t have a ___________ or other ___________ ______ __________, but they still have:
1.
2.
3.

Answer 2

DNA, membrane-bound organelles

1. genetic materials
2. cytoplasm
3. ribosomes

Question 3

Bacteria has varieties of shapes. Sphere-shpaed is also known as _____________, rod-shaped is also known as ________________, and spiral-shaped is also known as ____________

Answer 3

Coccus (cocci)
bacillus (bacilli)
spirillum (spirilla)

Question 4

Do all bacterias are harmful/bad pathogens?

Answer 4

NO
Bacterias can also be helpful for organisms & ecosystem

Question 5

What are 4 examples of bacteria being helpful?

Answer 5

1. BREAK DOWN food in digestive system
2. Use to MAKE SOME FOODS (yoghurt)
3. Help DECOMPOSE organic matter
4. FIX NITROGEN for plants

Question 6

How can you treated harmful bacteria?

Answer 6

With antibiotics

Question 7

Strep throat, tooth decay, or tetanus are the examples of ____________ infections

Answer 7

bacterial