Bacteria, Viruses and Protists
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
