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Bio002 Prokaryotes Vocab

Total questions: 20

Worksheet time: 10mins

Name
Class
Date
1.

nucleoid

a)

A membrane-bound organelle found in eukaryotic cells.

b)

A non-membrane-bounded region in a prokaryotic cell where the DNA is concentrated.

c)

A type of RNA molecule involved in protein synthesis.

d)

A structure that helps in the movement of the cell.

2.

biotechnology

a)

A technological application that uses living organisms, biological systems, or their derivatives to produce or modify other products

b)

A method of growing plants without soil

c)

A process of creating synthetic materials

d)

A technique for preserving food using chemicals

3.

obligate anaerobe

a)

organism that cannot live in the presence of oxygen

b)

organism that thrives in high oxygen environments

c)

organism that can survive with or without oxygen

d)

organism that requires oxygen for growth

4.

antibiotic

a)

A chemical compound that promotes cell growth

b)

A biological substance produced by a microbe that is toxic to other microbes

c)

A type of vaccine used to prevent infections

d)

A synthetic drug used to treat viral infections

5.

teichoic acid

a)

polymer associated with the cell wall of Gram-positive bacteria

b)

component of the outer membrane in Gram-negative bacteria

c)

a type of lipid found in bacterial membranes

d)

a carbohydrate found in fungal cell walls

6.

Gram positive

a)

Contains mainly peptidoglycan in its cell walls; also contains teichoic acid

b)

Has an outer membrane and low peptidoglycan content

c)

Is primarily composed of lipopolysaccharides

d)

Is resistant to antibiotics due to a thick capsule

7.

peptidoglycan

a)

Material composed of polysaccharide chains cross-linked to unusual peptides; found only in bacterial cell walls

b)

A type of lipid found in fungal cell membranes

c)

A protein that aids in cellular respiration

d)

A carbohydrate that serves as an energy source for plants

8.

microbiome

a)

All of the microbes (bacteria, viruses, and so on) with all of their genes in a community

b)

A type of bacteria that causes disease

c)

The study of microorganisms and their effects on humans

d)

A collection of viruses that infect plants

9.

endotoxin

a)

A toxic component (LPS) of the outer membrane of certain gram-negative bacteria

b)

A type of antibiotic produced by gram-positive bacteria

c)

A protein that helps in the formation of biofilms

d)

A carbohydrate found in the cell wall of gram-negative bacteria

10.

fimbriae

a)

attachment structures on the surface of some prokaryotes

b)

structures that help in locomotion of eukaryotic cells

c)

cellular components involved in energy production

d)

protective layers found in bacterial cells

11.

hyperthermophile

a)

organism that grows at temperatures between 80-122 °C

b)

organism that thrives in cold environments

c)

organism that requires high salt concentrations

d)

organism that can survive in extreme pressure

12.

cell membrane (prokaryotes)

a)

A structure that regulates movement of materials and contains enzymes important to cellular respiration

b)

A rigid layer that provides structural support and protection

c)

A site for protein synthesis and energy production

d)

A barrier that prevents all substances from entering the cell

13.

glycocalyx

a)

carbohydrate and protein coat on prokaryotes; less defined slime layer on all cells; some have larger tightly-bound capsules

b)

lipid bilayer that forms the cell membrane in eukaryotes

c)

protein structure that aids in cell division

d)

nucleic acid structure that stores genetic information

14.

photoautotroph

a)

organism that uses energy from sunlight to convert carbon dioxide and water to carbon compounds

b)

organism that consumes organic material for energy

c)

organism that relies on chemical energy from inorganic substances

d)

organism that can survive without sunlight or organic compounds

15.

chemoheterotroph

a)

organism that must take in organic molecules for both energy and carbon; most bacteria; animals, protists and fungi

b)

organism that can produce its own food using sunlight; plants and some bacteria

c)

organism that derives energy from inorganic compounds; some bacteria and archaea

d)

organism that can survive on minimal nutrients; some fungi and bacteria

16.

transformation

a)

process by which a prokaryote takes in DNA found in its environment that is shed by other prokaryotes

b)

a method of cell division in eukaryotes

c)

the conversion of one form of energy to another

d)

the process of synthesizing proteins from amino acids

17.

conjugation

a)

process by which prokaryotes move a plasmid from one cell to another using a pilus

b)

a method of asexual reproduction in plants

c)

the fusion of two gametes to form a zygote

d)

the process of DNA replication in eukaryotic cells

18.

obligate aerobe

a)

requires oxygen to grow

b)

can grow in both aerobic and anaerobic conditions

c)

does not require oxygen for growth

d)

grows best in low oxygen environments

19.

facultative anaerobe

a)

grows best if oxygen is present, but can also grow without it

b)

requires oxygen to grow and cannot survive without it

c)

grows only in the absence of oxygen

d)

can grow in both aerobic and anaerobic conditions but prefers high temperatures

20.

cocci

a)

spiral bacteria

b)

spherical bacteria

c)

rod-shaped bacteria

d)

filamentous bacteria