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TEST BANK FOR CAMPBELL BIOLOGY 12TH EDITION || CHAPTERS 27||FULL COMPLETE||LATEST
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TEST BANK FOR CAMPBELL BIOLOGY 12TH EDITION || CHAPTERS 27||FULL COMPLETE||LATEST
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ESTUDYTEST BANK FOR CAMPBELL BIOLOGY 12TH EDITION
|| CHAPTERS 27||FULL COMPLETE||LATEST
1. **What are the first prokaryotic cells?**
A) Multicellular organisms
B) Unicellular organisms
C) Cells with a nucleus
D) Cells without a membrane
**Answer:** ✔ B) Unicellular organisms
2. **What shapes can prokaryotes have?**
A) Squares and rectangles
B) Rods, spirals, and circles
C) Only circles
D) Triangles and diamonds
**Answer:** ✔ B) Rods, spirals, and circles
3. **What is the function of the bacteria cell wall?**
A) Provides energy
B) Maintains shape and offers protection
C) Helps in reproduction
D) Stores nutrients
,ESTUDY
**Answer:** ✔ B) Maintains shape and offers protection
4. **What are eukaryotic cell walls made of?**
A) Sugar
B) Peptidoglycan
C) Cellulose and chitin
D) Proteins only
**Answer:** ✔ C) Cellulose and chitin
5. **What is peptidoglycan made of?**
A) Lipids and proteins
B) Carbohydrates and proteins
C) Nucleic acids
D) Water and minerals
**Answer:** ✔ B) Carbohydrates and proteins
6. **Do most archaea have cell walls?**
A) Yes, they do
B) No, they don’t
C) Only some have cell walls
D) They have a nucleus instead
**Answer:** ✔ A) Yes, they do
, ESTUDY
7. **What is the purpose of the Gram stain?**
A) To measure bacteria size
B) To classify prokaryotes based on their cell wall
C) To color bacteria
D) To kill bacteria
**Answer:** ✔ B) To classify prokaryotes based on their cell wall
8. **What characterizes gram-positive bacteria?**
A) Thin peptidoglycan layer
B) Thick peptidoglycan layer
C) No cell wall
D) Phospholipid outer membrane
**Answer:** ✔ B) Thick peptidoglycan layer
9. **What type of bacteria is harder to kill?**
A) Gram-positive
B) Gram-negative
C) Both types are easy to kill
D) None of the above
**Answer:** ✔ B) Gram-negative
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