Exam 3: The Cellular Level of Organization

During kidney dialysis,a person's blood is passed through a bath that contains several ions and molecules.The blood is separated from the dialysis fluid by a membrane that allows water,small ions,and small molecules to pass,but does not allow large proteins or blood cells to pass.What should the composition of dialysis fluid be for it to remove urea (a small molecule)without changing the blood volume (removing water from the blood)?

The tails of a phospholipid molecule are

Figure 3-1 The Anatomy of a Representative Cell Use Figure 3-1 to answer the following questions: -Which structure produces ATP for the cell?

Before the mRNA transcribed from a gene can be used to translate into a protein,it must be

The watery component of the cytoplasm is called

Which phase of the cell cycle has the biggest extremes in duration?

Chromosomes consist of ________ and ________.

Microfilaments

The "t" in tRNA stands for

Figure 3-2 The Plasma membrane Use Figure 3-2 to answer the following questions: -Microfilaments are labeled

Which organelles are involved in membrane flow? Trace the route of a single integral membrane protein from formation to incorporation into the plasma membrane.

In the mitochondrion,folds are to cristae as the contained fluid is to

In ________,one substance is transported into the cell and another is transported out.

Whenever positive and negative ions have been separated,a(n)________ will be produced.

The process by which molecules such as glucose are moved into cells along their concentration gradient with the help of membrane-bound carrier proteins is called

Intravenous injection of KCl could be fatal.Why?

Most of a cell's DNA is located in its

Which of the following cytoskeleton components moves the chromosomes during cell division?

Mitosis is to somatic cells as meiosis is to ________ cells.

The mRNA sequence that is complementary to the sequence ATC on DNA is