Question

question 28 1 pts the fundamental organizational unit of life is the: atom. cell. gene. dna molecule. question 29 1 pts which of the following is not true about ribosomes? contain protein composed of a large unit and a small unit surrounded by a membrane structure contain rna question 30 1 pts the nucleus is the only structure in the cell that contains dna. false true no answer text provided. no answer text provided.

Explanation:

• For Question 28: Cells are the fundamental organizational units of life. Atoms are the basic units of matter, genes are segments of DNA, and DNA molecules carry genetic information, but they are not the fundamental organizational unit of life.
• For Question 29: Ribosomes are non - membrane bound organelles composed of a large and a small subunit, and they contain both protein and RNA. So the statement that they are surrounded by a membrane structure is false.
• For Question 30: In addition to the nucleus, mitochondria and chloroplasts (in plant cells) also contain DNA. So the statement that the nucleus is the only structure in the cell that contains DNA is false.

Answer:

Question 28: B. cell
Question 29: C. Surrounded by a membrane structure
Question 30: A. False