Exam 3: Cell Structure and Function

During transcription, a sequence of three nitrogenous bases along the new mRNA strand represents a(n) ________ that is complementary to the corresponding triplet along the gene.

In which type of solution would equilibrium exist?

Photo Credit: Steve Gschmeissner / Photo Researchers, Inc. Figure 3-1 A Red Blood Cell Use Figure 3-1 to answer the following question: Choose the correct description for the preceding image.

Which structure leaves the nucleus during transcription of protein synthesis?

The plasma membrane

The stage in a cell's life cycle in which the DNA of the chromosomes gradually uncoils and nucleoli reappear, is called

The DNA triplet is the same sequence as the ________, except that U replaces T.

Three nitrogenous base sequences on mRNA, which are complementary to gene triplets, are called

Looking at a tissue through a microscope, you notice that all of the cells along the free surface of the tissue have microvilli along the free edges of the cells. This would tell you that this tissue has what function?

Transcription occurs in the

Figure 3-6 Nucleus Use Figure 3-6 to answer the following question: Identify the component of the nucleus in which rRNA synthesis and the assembly of ribosomal subunits occur.

Figure 3-7 Translation Use Figure 3-7 to answer the following questions: -Identify the anticodon in the image.

Which of the following contains an unusual double membrane?

The tRNA anticodon for the DNA triplet TCA would be

In cells that are not dividing, chromosomes form a loose network of fibers known as

Which property of a membrane determines which molecules may enter or leave?

There are chemicals that bind to microfilaments and block the elongation of actin in a cell. This would damage

Figure 3-4 Protein Synthesis Use Figure 3-4 to answer the following questions: -The cell seen in the preceding diagram could be

The stage of the cell cycle during which DNA replication and synthesis of histones occur is called

What is the function of the structure labeled #12?