Bacteria Unit TEST

Which of the following would a microbiologist be surprised to find within a bacterial cell?

• Internal membrane

• Ribosomes

• A circular chromosome

• Plasmids

The term for cell division in bacteria is

• Binary fission

• Mitosis

• Meiosis

• Sporulation

Tags

NGSS.MS-LS3-2

Bacterial spores can survive long periods of time in heat, dehydration, and cold because of their:

• Large amounts of DNA

• Thick cell wall

• Special enzymes

• Specialized cytoplasm

Among bacteria, food-getting may involve:

• Photosynthesis

• Chemosynthesis

• Parasitism

• All of the above

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

Archaebacteria that live in oxygen-free environments would include the:

• Eubacteria

• The obligate aerobes

• Retroviruses

• The methanogens

Examples of autotrophic bacteria are:

• Saprophytes

• Chemosynthetic forms

• Pathogenic

• Parasites

Bacteria are essential to life on earth because:

• They are decomposers

• They are capable of converting nitrogen into nitrates

• They help to recycle essential chemical elements

• All of the above are correct

Tags

NGSS.MS-LS2-3

When two bacteria join and exchange genetic information, it is known as

• Binary fission

• Conjugation

• Transformation

• Transference

If a bacterial cell can move, it might do so by means of:

• Cyclosis

• Pseudopods

• Flagella

• Cilia

The capsule of a bacterium probably functions as:

• A means of locomotion

• Protection

• A device to give the bacteria shape

• A reproductive mechanism

Tags

NGSS.MS-LS1-2