Which part of a flagellum is a sheath over the filament?

What type of organism gets its carbon and energy from organic molecules such as glucose and can’t make its own food?

What stage produces sugar in oxygenic photosynthesis?

What is the main event of Krebs cycle?

Select the word or phrase that complete each sentence (constitutional isomers, diastereomers, enantiomers, meso compounds, higher, lower, reaction, addition, carbocation, carbanion, nucleophile, electrophiles, elimination, heterolysis, homolysis, reagent, substitution, stronger, weaker, charge, concerted, two step, SN1, SN2, E1, E2, racemization, hyperconjugation, alkyl halides, inversion):     A(an) …………………………….. has an electron-rich atom that is capable of donating a pair of electrons. Complete word/phrase and correct spelling (verbatim) is required. No partial credit.

The external coating of a cell wall in bacteria is called the __________________, and the loosely organized, thinner version of it is called a __________________.

Which type of prokaryote has ether linkages in the lipids of its cell membrane?

Bacteria that are photosynthetic but don’t give off oxygen are called ________.

___________ is a word used to describe a gently curved rod-shaped bacterium.

Select the word or phrase that complete each sentence (constitutional isomers, diastereomers, enantiomers, meso compounds, higher, lower, reaction, addition, carbocation, carbanion, nucleophile, electrophile, elimination, heterolysis, homolysis, reagent, substitution, stronger, weaker, charge, concerted, two step, SN1, SN2, E1, E2,  racemization, hyperconjugation, alkyl halides, inversion):    Breaking a bond by equally dividing the electrons between the two atoms in a bond is called …………………… Complete word/phrase and correct spelling (verbatim) is required. No partial credit.