Micro Chapters 7-9 – Flashcards

An important mineral ion of the cytochrome pigments of cellular respiration is:

The term phototroph refers to an organism that:

The term autotroph refers to an organism that :

The term chemotroph refers to an organism that:

The movement of substances from lower to higher concentration across a semi-permeable membrane that must have a specific protein carrier and use energy is called:

The movement of substances from a higher to lower concentration across a semi-permeable membrane that must have a specific protein carrier but no energy expenditure is called:

The use of energy by a cell to enclose a substance in its membrane by forming a vacuole and engulfing it is called:

When bacteria that are living in a freshwater stream moved to seawater, then what would happen?

Which of the following microorganisms would find hypotonic conditions most detrimental?

Cultures of a bacterial species were incubated on a shelf of a refrigerator, out on a lab benchtop, on the shelf of a 37 degree incubator and on the shelf of a 50 degree incubator. After incubation, there was no growth at 37 or 50 degrees, slight growth out on the benchtop and abundant growth at refrigeration. What term would be used for this species?

Cultures of a bacterial species were incubated out on the incubator shelf, in an anaerobic jar and in a candle jar. After incubation there was more moderate growth of cultures in the candle and anaerobic jars, but heavy growth of the culture on the incubator shelf. This species is a:

A microorganism that has an optimum growth temperature of 37 degrees but can survive short exposure to high temperatures is called a:

An organism with a temperature growth range of 45 to 60 degrees would be called a:

All of the following could find a location in or on body tissues suitable for growth except:

A microorganism that does not have catalase or superoxide dismutase would find it difficult to live in an environment with:

Which of the following choice is true in case of a microaerophile?

The phase of the bacterial growth curve in which the rate of multiplication equals the rate of cell death is the:

The phase of the bacterial growth curve in which newly inoculated cells are adjusting to their new environment, metabolizing but not growing is the:

The decline in growth rate during the death phase is due to all of the following except:

Which of the following methods of enumerating cells is the only one to detect live cells?

All of the chemical reactions of the cell are called:

An apoenzyme:

Enzymes that catalyze removing electrons from on substrate and adding electrons to another are called:

In the cell, energy released by the electrons is often used to phosphorylate:

All of the following are exoenzymes except:

The step involving ATP, hexokinase, and the phosphorylation of glucose to glucose-6-phosphate is:

During aerobic cellular respiration, the final electron acceptor is:

Which of the following is NOT involved in the step that occurs between glycolysis and the TCA cycle?

In bacterial cells, the electron transport system is located in the:

In which pathway is the most NADH generated?

The reactions of fermentation function to produce __________ molecules for use in glycolysis.

During which of the phases of cellular respiration is the majority of ATP formed?

When glucose is broken down by glycolysis during bacterial fermentation, how many ATP are generated?

As the electron transport carriers shuttle electrons, they actively pump ________ into the outer membrane compartment setting up a concentration gradient called the proton motive force.

Anaerobic cellular respiration:

Each FADH2 that enters the electron transport system gives rise to _____ ATP.

In anaerobic respiration, all of the following can serve as the final electron acceptor except:

The process of alcoholic fermentation produces:

Cyanide will cause rapid death in humans because it:

When amino acids are deaminated, they can be used as a source of:

Among the microorganisms, various genomes can include:

The antiparallel arrangement within DNA molecules refers to:

The duplication of a cell's DNA is called:

DNA polymerase III:

Which enzyme is mismatched with its function in DNA replication?

Groups of three consecutive bases along the DNA of a gene have the code for one:

The RNA molecules that carry amino acids to the ribosomes during protein synthesis are called:

This molecule is transcribed from the DNA template stand and later translated.

Which of the following is incorrect about termination codons?

Split genes:

The operon segment composed of the gene that codes for a protein repressor is called the:

A mutation that changes a normal codon to a stop codon is called a:

The development of virulent, toxin-producing bacterial strains due to the presence of a temperate phage can occur in:

Which is incorrect about pyrimidines?

Individuals with xeroderma pigmentosa lack a functioning:

All of the following are products of transcription except:

In order for a retrovirus to insert itself into the host's DNA, it must do which of the following?

All of the following are true about mutations except:

Individuals with xeroderma pigmentosa cannot repair mutations caused by:

Transcription and translation occur _________ in prokaryotes.