What type of microbe has lipid A? Gram-positive bacteria Protozoa Fungi Gram-negative bacteria

Which of the following does NOT describe a mechanism of antibiotic resistance among bacteria? enzymes to hydrolyze or chemically alter the antibiotics mutations in target molecules so that antibiotics can no longer bind efflux pumps cell wall diffusion barrier, e.g. Gram-negative outer membrane, Acid Fast cell wall of Mycobacterium O increased synthesis of porins to increase antibiotic diffusion across membranes

Some bacteria have a tube which allows materials to move directly into or out of the cytoplasm. This tube is called a ___.   cilium   flagellum   genera   pilus

What microbial structures are the most resilient forms of life?   Bacterial endospores Enveloped viruses Fungal spores Gram-positive bacteria