UF MCB 3020 Exam 1

Eukaryote

Prokaryote

Prion

Viroid

Virus

Reconstruct Pasteur's famous experiment used to disprove spontaneous generation.

Label the diagram outlining the steps involved in following Koch's postulates.

Enzymes needed to digest all types of macromolecules are found in

Antiseptic surgery was pioneered by

The most important distinguishing feature of eukaryotes that is lacking in prokaryotes is

The study of viruses is known as _________.

Which of the following describes an organism that lacks linear chromosomes and peptidoglycan cell walls?

Which of the following structures are external to both Bacterial and Archaeal cells?

Which of the following bacterial structures are most directly linked to swimming motility in chemotaxis?

The organelle responsible for harvesting light as an energy source for photosynthesis is the

Which of the following is a function of the mitochondrion?

The cell wall of bacteria are typically composed of ______.

The term used to describe bacteria that have a spherical shape is

In which of the following organelles would you expect to find protein synthesis occurring?

Cells with a relatively complex morphology that have a true membrane-delimited nucleus are called

Which cytoplasmic structures in bacteria provide regulate bouyancy of the cell?

Which of the following must leave the nucleus via the nuclear pore complexes?

The major site of cell membrane synthesis is the

Proteins are synthesized on structures called

Which acellular agent is composed of both proteins and nucleic acids

Which of the following organelles is involved in the modification, packaging, and secretion of materials?

Which of the following describes an organism that contains 80S ribosomes?

Which is the most common cell wall in most Archaea?

An external structure unique to archaea are the ______.

Prior to the work of ____________, scientists did not distinguish between members of the Archaea and the Bacteria.

Which acellular agent is composed of proteins only?

Which of the following advances best describes that today we may be experiencing a second golden age of microbiology?

Which bacterial cytoplasmic structure is used for storage of Carbon, Glycogen, Amino Acids, and other nutrients?

Carl Woese distinguished between the members of the Archaea and the Bacteria using studies of their ________.

Which acellular agent is composed of nucleic acids only?

The plasma membrane of eukaryotes contains all of the following EXCEPT

The nucleolus plays a major role in synthesis of

Membrane delimited intracellular structures that perform specific functions in cells are called

Some archaea have been observed to form tubelike structures with tiny grappling hooks at the ends. These tubelike structures are called ______.

The liquid component of the cytoplasm is known as the

Which of the following describes an organism that lacks linear chromosomes but has peptidoglycan cell walls?

The concept that living organisms arise from nonliving material is called

In the Gram-staining procedure, the primary stain is

The proper sequence of reagents in the Gram stain procedure is

After performing a Gram stain of a mixed culture of Gram-positive and Gram-negative cells, you shout: "Oops, I forgot the iodine step!" What would you expect to see if you observed the slide under the microscope?

The Gram stain of a bacterial cell is based on the chemical properties of its ________.

Acetone can be used as the decolorizer in the Gram stain procedure.

The Gram stain can only be performed on cultures grown in liquid media.

Label the diagram of the prokaryotic cell in order to review the major structures of a bacterial cell.

Chloroplast

Lysosomes

Golgi apparatus

Peroxisomes

Nucleus

Endoplasmic Reticulum

Mitochondria

Lysosomes are membrane-bound vesicles that arise from the _________

The lysosome contains ________ enzymes.

Which of the following cells will be expected to contain the most active lysosomes? Intestinal cell Incorrect Kidney cell Skin cell Brain cell Phagocytosing white blood cell

Lysosomes function in the destruction and recycling of old organelles.

The enzymes found in the lysosomes were formed in the endoplasmic reticulum.

The abnormal form of prion protein is designated _________.

Prions are believed to cause _______ diseases.

A harmless PrP is converted into the infective PrP

Disease symptoms are believed to be the result of dense aggregates of the abnormal protein.

In some inherited cases, the normal prion protein can convert spontaneously to the abnormal form, but at a slow rate.

Complete the following chart concerning bacteria, archaea, and eukaryotic cells.

A microbe is discovered living in an extreme environment near a deep sea vent. The microorganism lacks a nucleus and peptidoglycan in its cell wall, but it does have unusual membrane lipids. This species is most likely a member of the Domain ________.