Filters
Question type

Study Flashcards

Upon viewing a specimen through microscopic techniques,you realize the cells all contain ribosomes.Based upon this information,you eliminate which of the following from your list of potential microorganisms:


A) bacterium.
B) archaea.
C) eukaryote.
D) none can be eliminated based upon this structural observation alone.

E) A) and B)
F) A) and C)

Correct Answer

verifed

verified

Larval development of helminths occurs in which host?


A) primary host
B) intermediate host
C) definitive host
D) transport host
E) Larval development takes place in all hosts.

F) C) and D)
G) D) and E)

Correct Answer

verifed

verified

Protists with contractile vacuoles


A) are algae.
B) use them to expel excess water from the cell.
C) typically live in salty seawater.
D) use them for motility.
E) have greater motility.

F) A) and E)
G) B) and C)

Correct Answer

verifed

verified

You are looking at an organism of some sort under the microscopic lens.It is obviously multicellular,with no cell wall.Your prediction would be that this organism is a:


A) bacterium
B) fungus
C) alga
D) protozoan
E) helminth

F) A) and B)
G) D) and E)

Correct Answer

verifed

verified

Most fungi obtain nutrients from dead plants and animals.These fungi are called


A) saprobes.
B) parasites.
C) antagonists.
D) free-living.
E) mutualistic.

F) A) and D)
G) A) and B)

Correct Answer

verifed

verified

When buds remain attached,fungi form a chain of yeast cells called


A) pseudohyphae.
B) septa.
C) molds.
D) dimorphic.
E) mycelium.

F) A) and C)
G) A) and E)

Correct Answer

verifed

verified

The cell walls of fungi and algae are chemically identical to the prokaryotic cell wall.

A) True
B) False

Correct Answer

verifed

verified

Plankton are floating communities of helminths.

A) True
B) False

Correct Answer

verifed

verified

Fungi that grow as yeast at one temperature but will grow as mold at another temperature are called


A) dimorphic.
B) saprobes.
C) pseudohyphae.
D) spores.
E) parasites.

F) A) and E)
G) A) and C)

Correct Answer

verifed

verified

Fungal asexual spores


A) are only produced under harmful environmental conditions.
B) produce offspring with different combinations of genes from the original fungus.
C) cannot be seen using a light microscope.
D) are the products of meiotic division by a single parent cell.
E) are used to identify fungi.

F) A) and B)
G) None of the above

Correct Answer

verifed

verified

In eukaryotic cells,which of the following contains DNA?


A) nucleus,mitochondria,and Golgi apparatus
B) nucleus,endoplasmic reticulum,and Golgi apparatus
C) nucleus,nucleolus,and Golgi apparatus
D) nucleus,chloroplast,and mitochondrion
E) nucleus,chloroplast,and peroxisome

F) A) and E)
G) C) and D)

Correct Answer

verifed

verified

A/n _____ originates from the Golgi apparatus as one type of vesicle that contains a variety of enzymes for intracellular digestion.


A) centrosome
B) lysosome
C) magnetosome
D) inclusion
E) ribosome

F) None of the above
G) B) and E)

Correct Answer

verifed

verified

In humans,helminths generally infect the


A) digestive tract.
B) urinary tract.
C) nervous system.
D) muscular system.
E) skin.

F) A) and D)
G) A) and C)

Correct Answer

verifed

verified

The eukaryotic cell membrane is composed of


A) sterols.
B) proteins.
C) phospholipids.
D) Sterols,proteins,and phospholipids.
E) Sterols and phospholipids only.

F) None of the above
G) A) and B)

Correct Answer

verifed

verified

The group of protozoa that are not motile are the


A) amoebas.
B) ciliates.
C) trophozoites.
D) Plasmodium sp.
E) dimorphics.

F) A) and E)
G) B) and E)

Correct Answer

verifed

verified

In the life cycle of the pinworm Enterobius,a common infection in children,the child has the adult worm in the intestine.The adult worm releases eggs,which are then transmitted out of the body via feces.The child will scratch the anal area,picking up the worm eggs and re-inserting them into the mouth.For this helminth life cycle,the human is _____ host.


A) intermediate
B) definitive
C) primary
D) both intermediate and definitive

E) All of the above
F) A) and D)

Correct Answer

verifed

verified

After returning from a trip to Africa,Tom begins to feel very tired and weak.He has severe anemia.A blood smear reveals a protozoan is present in his blood.The health care provider tells Tom he has malaria.Which of the following could be the causative agent of his disease?


A) HIV
B) Taenia solium
C) Plasmodium malariae
D) Trichophyton rubrum
E) Giardia lamblia

F) A) and B)
G) A) and C)

Correct Answer

verifed

verified

An organelle that is a stack of flattened,membranous sacs and functions to receive,modify,and package proteins for cell secretion is the


A) mitochondrion.
B) lysosome.
C) Golgi apparatus.
D) chloroplast.
E) endoplasmic reticulum.

F) A) and E)
G) B) and D)

Correct Answer

verifed

verified

When analyzing a specimen for identification purposes,you detect the presence of large amounts of histone protein.You predict that:


A) the organism is a prokaryote.
B) the organism has no nuclear membrane.
C) the organism has a large genome.
D) the organism is photosynthetic.

E) C) and D)
F) A) and D)

Correct Answer

verifed

verified

The eukaryotic cell organelle that most resembles a bacterial cell is the


A) nucleus.
B) Golgi apparatus.
C) mitochondrion.
D) lysosome.
E) ribosome.

F) C) and E)
G) B) and C)

Correct Answer

verifed

verified

Showing 41 - 60 of 84

Related Exams

Show Answer