22 Questions
Which of the following is a mode of locomotion in bacteria?
Flagella
What is the function of holdfasts in bacteria?
Secrete adhesion factors
Which type of bacteria has flagella that rotate either clockwise (CW) or counterclockwise (CCW)?
Gram-negative
What is the movement of a bacterium in response to chemical gradients called?
Chemotaxis
Which type of rotation of flagella in bacteria causes the flagellar bundle to fall apart?
Clockwise (CW)
What is the directed movement of bacteria in response to physical or chemical gradients called?
Taxis
Which of the following is NOT a type of taxis?
Endospores
What is the function of chemoreceptors in bacteria?
Sense attractants and repellents
What is the structure of the flagella in bacteria composed of?
Flagellin
Which type of bacterial cell has flagella with different arrangements, such as polar, lophotrichous, amphitrichous, and peritrichous?
Gram-negative
Which of the following is NOT one of the main domains of life mentioned in the text?
Bacteria
What is the name of the book recommended in the text to learn more about archaea?
The Tangled Tree
Which major phylum of archaea is known for being obligate symbionts and experiencing gene loss?
DPANN
Which of the following is a distinctive feature of Archaea?
Ether-linked membrane lipids
Which of the following is a characteristic of Archaeal DNA replication enzymes?
They are similar to those of eukaryotes
Which of the following is a characteristic of archaeal flagella?
They are similar in structure to bacterial flagella
Which of the following is a characteristic of retinal-based photoheterotrophy in haloarchaea?
They use light-driven ion pumps to capture light energy
Which of the following is true about the gene expression in archaea?
Archaea have a unique gene expression mechanism
Which of the following is true about the modified bases in archaea's tRNA molecules?
Archaea have distinctive modified bases
Why is it difficult to study archaea?
Archaea can only grow in specific conditions
What is true about cell division in archaea?
Archaea have a unique cell division process
Why don't archaea cause disease?
The text does not provide a reason
Test your knowledge of replisome movement within a dividing cell with this quiz. Learn how DNA origin-of-replication sites and replisomes interact during cell division, and understand the role of FtsZ proteins in septum formation.
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