Which of the following bacteria lack a cell wall and are therefore resistant to penicillin? a. cyanobacteria b. mycoplasmas c. bdellovibrios d. spirochetes the protein from which hook and filaments of flagella are composed of, is a. keratin b. flagellin c. gelatin d. casein a cluster of polar flagella is called a. lophotrichous b. amphitrichous c. monotrichous d. petritrichous the cooci which mostly occur in single or pairs are a. streptococci b. diplococci c. tetracocci d. none of these flagella move the cell by a. many flagella beating in a synchronous, whip-like motion b. an individual flagellum beating in a whip-like motion c. spinning like a propeller d. attaching to nearby particles and contracting

Which of the following bacteria lack a cell wall and are therefore resistant to penicillin?

B.Mycoplasmas

The protein from which hook and filaments of flagella are composed of, is

B.flagellin

A cluster of polar flagella is called

A.lophotrichous

The cooci which mostly occur in single or pairs are

B.Diplococci

Flagella move the cell by

C.spinning like a propeller

Explanation:

both anaerobic and aerobic respiration use glucose (or other carbohydrates), proteins and lipids to produce atp and nadh. cell uses those energy molecules, obtained from food and   breaks them down during the chemical reactions of respiration. in anaerobic respiration, nadh is regenerated to nad+ by enzymes lactate dehydrogenase (lactate is produced, e.g. in muscle cells) or by alcohol dehydrogenase where ethanol is produced (alcohol fermentation), while in aerobic respiration, electrons from nadh are deposited in the mitochondria to regenerate nad+ (electron transport chain. anaerobic respiration produces 2 atp per molecule of glucose compared to aerobic respiration where about 38 atp molecules are produced.

it enhances antibody production by t cells of the adaptive immune system.

hope i'm right

explanation: