Exam 3: Cells

Glucose is a polar molecule that requires a carrier protein in order to diffuse through the plasma membrane's non-polar barrier.Diffusion of substances that require carrier proteins is known as ____________.

In this type of cell division,chromosome number is reduced by half.

Receptor mediated endocytosis is another name for facilitated diffusion.

If impermeant solutes are present in greater concentration in intracellular fluid,which statement is true?

The activity that takes place on ribosomes is

When telomeres shorten to a certain length,__________.

The interior of a cell membrane is oily because

A composite cell has three basic parts.They are the

Vesicles that deliver proteins and lipids to other cells are called _______.

The mechanism of membrane transport that requires an input of energy is

A lysosome is an example of a cellular organelle.

During _______,chromatids separate and become chromosomes that are pulled toward opposite ends of the cell.

The final stage of mitosis is _______.

In osmosis,water diffuses down its concentration gradient.

In terms of cell lineages,a blood cell is more closely related to a bone cell than to a skin cell.

In prophase,DNA is tightly coiled into darkly staining structures called chromatin.

The Golgi apparatus contains DNA.

An organelle type that is built of microtubules and fringes the free surfaces of certain cell types is a

The movement of glucose through a cell membrane is by facilitated diffusion.

Which organelle in the list is a membranous sac formed by budding off sections of the Golgi membrane?