Pili are usually longer than fimbriae and number only one or two per cell. Pili are involved in motility and DNA transfer. The type of motility, called 

1. Extrusion

2. Somersaulting

3. Twitching motility 

4. Gliding motility

Which combination from the following is correct?

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#Question id: 313

#XL - Q Biochemistry

What is the difference between a particle being hydrated versus being solvated?

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#Question id: 314

#XL - Q Biochemistry

Which statement explains the cleaning action of soap on greasy dishes?

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#Question id: 316

#XL - Q Biochemistry

Which of these noncovalent forces in biological systems is usually the strongest?

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#Question id: 317

#XL - Q Biochemistry

Hydrogen bonds can occur when hydrogen is covalently bonded to atoms like nitrogen and oxygen. What property of nitrogen and oxygen is important for this?

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#Question id: 318

#XL - Q Biochemistry

Attractions of oppositely charged functional groups of proteins are sometimes called ________.

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#Question id: 319

#XL - Q Biochemistry

London dispersion forces are attractive forces that arise due to