Live cultures of Bacillus thuringiensis (Dipel) and B.

What is the dierence between the term bacillus and Bacillus?

What is the distinguishing feature of spirochete bacteria?

Not all prokaryotic cells have agella. What are bacteria without agella called?

How do the basal bodies of gram-negative and gram-positive bacteria dier?

Do bacterial agella push or pull a cell?

How are endoagella dierent from agella?

What kind of molecules are these: carbohydrates, lipids, or proteins?

What are the major structural dierences between gram-positive and gram-negative cell walls?

What is the dierence between a peripheral and an integral protein?

What is the function of chromatophores?

Why are passive processes important to a cell?

Why is osmosis important?

What is the importance of the dierences between prokaryotic and eukaryotic ribosomes with regard to antibiotic therapy?

How do magnetosomes behave like magnets?

What properties make endospores resistant to processes that normally kill vegetative cells?

How do prokaryotic and eukaryotic agella dier?

What keeps the nucleus suspended in the cell?

What functions of the smooth ER and rough ER are similar?

What is the function of the Golgi complex?

How are mitochondria similar to prokaryotic cells?

What are the similarities between chloroplasts and prokaryotic cells?

Which of the following is false about mbriae?a. ey are composed of protein.b. ey may be used for attachment.c. ey are found on gram-negative cells.d. ey are composed of pilin.e. ey may be used for motility

Which of the following pairs is mismatched?a. glycocalyxadherenceb. pilireproductionc. cell walltoxind. cell wallprotectione. plasma membranetransport

Which of the following pairs is mismatched?a. metachromatic granulesstored phosphatesb. polysaccharide granulesstored starchc. lipid inclusionspoly-_-hydroxybutyric acidd. sulfur granulesenergy reservee. ribosomesprotein storage

You have isolated a motile, gram-positive cell with no visible nucleus. You can assume this cell hasa. ribosomes.b. mitochondria.c. an endoplasmic reticulum.d. a Golgi complex.e. all of the above

e antibiotic amphothericin B disrupts plasma membranes by combining with sterols; it will aect all of the following cells excepta. animal cells.b. gram-negative bacterial cells.c. fungal cells.d. Mycoplasma cells.e. plant cells

In 1985, a 0.5-mm cell was discovered in surgeonsh and named Epulopiscium shelsoni (see Figure 11.14 page 315). It was presumed to be a protozoan. In 1993, researchers determined that Epulopiscium was actually a gram-positive bacterium. Why do you suppose this organism was initially identied as a protozoan? What evidence would change the classication to bacterium?

When E. coli cells are exposed to a hypertonic solution, the bacteria produce a transporter protein that can move K+ (potassium ions) into the cell. Of what value is the active transport of K+, which requires ATP?

Clostridium botulinum is a strict anaerobe; that is, it is killed by the molecular oxygen (O2) present in air. Humans can die of botulism from eating foods in which C. botulinum is growing. How does this bacterium survive on plants picked for human consumption? Why are home-canned foods most o_en the source of botulism?

A South San Francisco child enjoyed bath time at his home because of the colorful orange and red water. e water did not have this rusty color at its source, and the water department could not culture the iobacillus bacteria responsible for the rusty color from the source. How were the bacteria getting into the household water? What bacterial structures make this possible?

Live cultures of Bacillus thuringiensis (Dipel) and B. subtilis (Kodiak) are sold as pesticides. What bacterial structures make it possible to package and sell these bacteria? For what purpose is each product used? (Hint: Refer to Chapter 11.)