AP BIOLOGY

THE CELL

CELL COMMUNICATION

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
What class of macromolecules includes transcription factors?
A
carbohydrates
B
nucleic acids
C
proteins
D
lipids
Explanation: 

Detailed explanation-1: -What type of macromolecule are transcription factors? Transcription factors are composed of proteins.

Detailed explanation-2: -Transcription factors are proteins involved in the process of converting, or transcribing, DNA into RNA. Transcription factors include a wide number of proteins, excluding RNA polymerase, that initiate and regulate the transcription of genes.

Detailed explanation-3: -Messenger RNA (mRNA) transports information from DNA to the ribosomes, where they are involved in synthesizing proteins. In addition, ribosomal RNA and transfer RNA are involved in protein synthesis. Other RNA molecules process and move both proteins and RNA.

Detailed explanation-4: -Most transcription factors are located in the cytoplasm. After receiving a signal from the cell membrane signal transduction, transcription factors are activated and then translocated from the cytoplasm into the nucleus where they interact with the corresponding DNA frame (cis-acting elements).

There is 1 question to complete.