a&p

Electrons

are the subatomic particles most involved in bonding behavior of atoms.

What kind of RNA has the function of bringing amino acids to the ribosome during translation?

tRNA

The four main types of tissues are

epithelial, connective, muscle, nervous

A symporter will transport _________ across the plasma membrane.

two different ions or molecules in the same direction

carrier proteins

Alba move bound ions or molecules from one side of the membrane to the other

a proton donor

An acid

Which of the following statements concerning connective tissue is true?

Collagen fibers provide strength to dense connective tissue.

Which tissue type forms glands?

Epithelial

Differentiation means all cells of an organism contain and express the same DNA.

False

Which type of tissue is contractile?

Muscle tissue

Which of the following correctly matches a nuclear structure with Its function?

Nuclear pores = allow molecules to, move between the nucleus and cytoplasm

Which of the following is a function of epithelial tissue?

Secretion and absorption of molecules

Which of the following is not a characteristic of homeostatic variables?

They always remain at a fixed value.

During gene expression, is the process of making an RNA copy of a portion of the DNA, and process of directing the synthesis of a protein based off the sequence of the RNA. is the?

Transcription:translation

An organ is

a structure composed of several tissue types

Receptor proteins are

attach to ligand molecules

Which type of membrane protein forms a passageway through the plasma membrane?

channel protein

Which of the following structures is likely to consist of dense irregular collagenous connective tissue collagenous

dermis of the skin

Epithelial tissue that can stretch or is subjected to stress would have

desmosomes

When ionic compounds dissolve in water, their ions

dissociate or separate from one another.

Chemical substances that dissolve in water or react with water to release ions are known as

electrolytes

In ionic bonding

electrons are transferred from one atom to another.

The change in size of the bone marrow (where blood cells are produced) as an infant matures is an example of _________, whereas the transformation of blood stem cells into white blood cells is an example of _________.

growth; differentiation

Molecules that serve as chemical signals to open or close gated ion channels are

ligands

The extracellular material of tissues is called

matrix

During exercise, one generates excess heat and the body temperature rises. As a response, blood vessels dilate in the skin, warm blood flows closer to the body surface, and heat is lost. This is an example of _________.

negative feedback

The plasma membrane

regulates movement of materials into and out of the cell.

Anatomy is

study of structure

Epithelial tissue is characterized as?

tightly packed cells

When a sperm cell comes into contact with an egg cell, there is a change in the electrical charge across the plasma membrane and various channel proteins close. These channels would be called _________channels.

voltage-gated