The thermoacidophile Sulfolobus acidocaldarius lacks peptidoglycan, but still possesses a cell wall. Which of the following statements is likely to be an accurate description of this species?
a. The optimal pH of its enzymes will lie above pH 7.
b. It is a bacterium.
c. It could inhabit hydrothermal springs.
d. It could inhabit alkaline hot springs.

c and d

Explanation:

A species of an organism with cell wall that lacks peptidoglycan is definitely not a bacterium because bacterial cell walls usually have peptidoglycan.

One particular group of organisms whose cells have cell walls but lack peptidoglycan is Archaea.

Archaea represents a group of prokaryotes that are able to survive in extreme conditions such as high temperature, pressure and salinity. As such, they could inhabit hydrothermal springs as well as alkaline hot springs.

Hence, thermoacidophile Sulfolobus acidocaldarius is likely to be an Archaea and could inhabit both hydrothermal springs and alkaline hot springs.

The correct option is option c and d.

yes? sounds right, but you didn’t ask a question.

answer:

the water molecules are transferred from the roots to the stem or top parts of the tall tree because of important properties of water which are adhesion, cohesion and capillary action. cohesion is the property of water molecules keeps water molecules in a combined state by sharing of bonds between them at the atomic level. adhesion allows the interaction of water molecules with other substances or substrate. adhesion will cause the attachment of water molecules to the wall of the vessel (xylem) of the plant. capillary action occurs when the adhesive force to the vessel wall is stronger than the cohesive force between water molecules. capillary action mimics the transfer of water from a tube or pipe. in this way water utilizes its property to transfer water from down to top level of the plant.