Question

which of the following statements is true:

1. Gram-positive bacteria are easier to kill with antibiotics compared to Gram-negative bacteria

2. Fungi are naturally antibiotic resistant

3. Protists can form larger organisms, such as sea weed

4. Bacteria use fimbriae to pull themselves forward for taxis

Answer 1

Answer 1: False.

Gram-positive bacteria have peptidoglycan outer layers. Their peptidoglycan layer absorbs antibiotics and cleaning products easily. Hence they are easier to kill. Gram negative bacteria have many membranes and resist this intrusion of antibiotics.

Answer 2: True

Antibiotics are chemicals that kill or inhibit the growth of bacteria. Hence they are used to treat bacterial infections. They are produced in nature by soil bacteria and fungi. Antibiotics do not kill fungi. Antifungal medicines are different from antibiotics. Interestingly, we are more prone to getting a fungal infection if we take antibiotics. So we can say that fungi are naturally antibiotic resistant.

Answer 3: True

Protists are eukaryotes. Most (but not all) protists are single-celled. Seaweeds are forms of algae (protists with chloroplasts) and are examples of multicellular protists.

Answer 4: True

A taxis is the movement of an organism in response to a stimulus. Fimbriae are located at the poles of bacilli and are used by bacteria to adhere to one another and to adhere to animal cells and some inanimate objects. They allow for a gliding motility along a solid surface.