Nucleus of the Cell

Front

What are sister chromatids?

Back

Sister chromatids are the two exact copies of DNA in a chromosome, formed during DNA replication.

Front

What are nuclear pores?

Back

Nuclear pores are tiny holes in the nuclear membrane that allow different cellular materials to enter and exit the nucleus.

Front

What is the main function of the nucleus?

Back

The nucleus controls what happens in the cell, including gene expression and cell division.

Front

Why are enzymes important for metabolism?

Back

Enzymes speed up chemical reactions in the body, making metabolism efficient.

Front

Can DNA leave the nucleus?

Back

False, DNA does not leave the nucleus; instead, RNA is transcribed from DNA and leaves through nuclear pores.

Front

What is the nucleolus?

Back

The nucleolus is a structure within the nucleus where ribosomal RNA (rRNA) is produced and ribosome assembly begins.

Front

What is the nuclear membrane?

Back

The nuclear membrane is a double-layered membrane that surrounds the nucleus and separates it from the cytoplasm.

Front

What is chromatin?

Back

Chromatin is a complex of DNA and proteins found in the nucleus that condenses to form chromosomes during cell division.

Front

What role does the nucleus play in cell division?

Back

The nucleus ensures that genetic material is accurately replicated and distributed to daughter cells during cell division.

Front

What is the difference between DNA and RNA?

Back

DNA stores genetic information, while RNA is involved in protein synthesis and acts as a messenger between DNA and ribosomes.