AP BIOLOGY

THE MOLECULAR BASIS OF INHERITANCE

THE GENETICS OF VIRUSES AND BACTERIA

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which statement about bacteria is true?
A
All bacteria are prokaryotes
B
All bacteria are eukaryotes
C
All bacteria are autotrophs
D
All bacteria are heterotrophs
Explanation: 

Detailed explanation-1: -Answer and Explanation: The correct answer is (a): all bacteria are prokaryotes. Bacteria and archaea are prokaryotes, whereas eukaryotes consist of kingdoms Animalia, Plantae, Fungi, and Protista. Viruses are not considered as true cells and are not included in any domains of life.

Detailed explanation-2: -So, the correct answer is ‘Bacteria grow fastest when they are warm’

Detailed explanation-3: -Bacteria lack a membrane-bound nucleus and other internal structures and are therefore ranked among the unicellular life-forms called prokaryotes.

Detailed explanation-4: -Only the single-celled organisms of the domains Bacteria and Archaea are classified as prokaryotes-pro means before and kary means nucleus. Animals, plants, fungi, and protists are all eukaryotes-eu means true-and are made up of eukaryotic cells.

Detailed explanation-5: -Bacteria do not have a well-defined nucleus. It lacks cell organelles. It has single circular genetic material in which only one chromosome is present. Thus bacterial cell is considered as a prokaryotic cell.

There is 1 question to complete.