Bacteria, Viruses and Protists

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the chromosomes of bacteria contain....

a single circular piece of DNA

E. Coli is an example of a bacterium that has short, thin, hairlike projections called?

pili

Bacteria often have small extra loops of DNA called?

plasmids

The kingdom protista does not include...

prokaryotes

bacteria are the only organisms characterized as?

prokaryotic

the protist that causes malaria reproduces in the?

red blood cells of a human

Cell organelles that Escherichia coli and other bacteria have in common with eukaryotes are?

ribosomes

when an individual daitom gets too small beacause of repeated division, it....

slips out of its shell, grows to full size, and regenerate a new shell

refer to the illustration. which structure represents a protein?

structure A

the study of viruses is a part of biology because viruses are...

active inside living cells

Antibiotics...

all of the above

dinoflagellates : flagella

amoebas : phseudopodia

we know viruses are not alive because they...

are not made of cells

Bacterial cells have...

both a cell membrane and an outer wall

bacterial endospores allow...

certain species to survive harsh environmental conditions

structures found in bacterial cells but not eukaryotic cells are?

circular chromosomes

bacterial cells such as E coli transfer pieces of gentic material in a process is called?

conjugation

the process in which two paramecia come together to exchange parts of their genetic material is called?

conjugation

Giardiasis is a disease that is spread through?

contaminated water

one difference between the cells in a human body and bacterial cells is that bacterial cells have an...

outer cell wall made up of carbohydrates and proteins

ameobas capture their food by?

englufing it

e coli is a eukaryotic cell with a rigid cell wall made of peptidoglycan. (true or false)

false

tuberculosis is a disease of the respiratory system caused by a virus (true or fasle)

false

which of the following are used by at least some bacteria for movement?

flagella

algae are found in?

fresh water, salt water, and damp soil

it is important to distinguish between Gram-positive and Gram-negative bacteria in diagnoising a bacterial infection because...

gram-negative and gram-positive bacteria differ in their responses to different antibiotics

the evolution of the plant kingdom can be inferred by studying

green algae

cyanobacteria are photoautotrophs because they require...

light

giardiasis : contaminated water

malaria : mosquito

pseudopodua are used for?

movements by amoebas

which of the following is NOT true about some or all protists?

multicellular or prokaryotic

during the process of conjugation?

one bacterium transfers DNA to another

viroids are smaller

than viruses

How is lytic cycle different from a lysogenic cycle?

the host cell is destroyed in a lytic cycle

a bacterial disease caused by bacteria that use human tissue for nutrients is...

tiberculosis

The kingdom of Protista contains the eukaryotes that are not plants, animals or fungi (true or false)

true

amoebas move by means of pseudopodia (true or false)

true

viruses consist of RNA or DNA surrounded by a coat of protein (true or false)

true

which of the following is not a human disease caused by a protist?

tuberculosis

Which of the following characteristics did not evolve in the Kingdom Protista?

unicellulatiry


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