Exam 1 Part One

True

A charged particle is correctly called an ion. T/F

acidic

A solution that has a pH of 2 could best be described as being:

True

A tissue consists of groups of similar cells that have a common function. T/F

Sagittal

A vertical section through the body dividing it into left and right is called what?

True

All organic compounds are covalently bonded. T/F

False

Although oxygen and water are essential to life, atmospheric pressure is really not important to sustain life. T/F

True

Blood is considered a type of connective tissue. T/F

True

Cartilage tissue tends to heal less rapidly than bone tissue. T/F

Within the cartilage, divide and secrete new matrix

Chondroblasts do what?

ATP synthesis would decrease

Cyanide inhibitors mitochondrial function' as a result, the rate of:

has a basement membrane

Epithelial tissue has what: Is highly vascularized Is usually acellular has a basement membrane contains a number of neuron types

Endocrine

Glands, such as the thyroid, that secrete their products directly into the blood rather than through ducts are classified as what type of glands?

True

Glucose is an example of a monosaccharide. T/F

tissues

Histology could be defined as a study of what?

A relatively stable internal environment, within limits.

Homeostasis is the condition in which the body maintains:

False

Isotopes differ from each other only in the number of electrons contained. T/F

True

It is important to any organism to maintain its boundaries, so that its internal environment remains distinct from the external environment surrounding it. T/F

tissue

Organized groups of cells (plus their intercellular substances) that have a common purpose form a(n):

proteins

Ribosomes are the site of synthesis of:

Ionic compounds

Salts are always

Stratified epithelia are present where protection from abrasion is important.

Select the correct statement regarding epithelia: Pseudostratified epithelia consists of at least 2 layers of cells stacked on top of one another. Simple epithelia form impermeable barriers. Stratified epithelia are tall, narrow cells. Stratified epithelia are present where protection from abrasion is important.

Carbon, Oxygen, Hydrogen, Nitrogen

The 4 elements that make up about 96% of body matter are:

Palms turned posteriorly

The anatomical position is characterized by all of the following except which: Thumbs pointed laterally; Palms turned posteriorly; body erect; arms at sides.

As a standard reference point for directional terms regardless of the actual position of the body.

The anatomical position is used:

The presence or absence of carbon.

The speed or rate of a chemical reaction is influenced by all of the following except: pH Salt content of body fluids The presence or absence of carbon. The Temperature

Ground substance, fibers, and cells

The three main components of connective tissue are:

Epithelial Tissue

The tissue type that is made from all three embryonic germ layers:

Cytoskeleton

What primarily determines the shape of human cells?

Golgi Apparatus

Which cellular organelle packages enzymes and makes secretions?

Na

Which of the following is necessary for proper conduction of nervous impulses?

They appear to be the molecular carriers of the coded hereditary information.

Which of the following is not true of proteins? They may be denatured or coagulated by heat or acidity. Some types are called enzymes. Their function depends on the three dimensional shape. They appear to be the molecular carriers of the coded hereditary information.

The greater the concentration of gradient, the faster the rate of diffusion.

Which of the following statements is correct regarding diffusion? The rate of diffusion is independent of temperature. The lower the temperature, the faster the diffusion rate. The greater the concentration of the gradient, the faster the rate of diffusion. Molecular weight of a substances does not affect the rate of diffusion.

It prevents potassium ions from leaking out of the cell.

Which of these is not a function of the plasma membrane? It prevents potassium ions from leaking out of the cell. It acts as a site of cell-to-cell interaction and recognition. It contains the cell contents. It is selectively permeable.

muscle

Which of these is not considered connective tissue? Muscle Cartilage Blood Adipose

Usually contains a large amount of matrix

Which statement best describes connective tissue? Always Arranged in a single layer of cells. Primarily concerned with secretion Usually lines a body cavity Usually contains a large amount of matrix

Endocrine

Which system controls the body with chemical molecules called hormones?

Immune

Which system produces antibodies that neutralize foreign substances?

Lymphatic

Which system removes and filters excess fluid from tissues?

Psuedostratified columnar

__________ Epithelium appears to have two or three layers of cells, but all the cells are in contact with the basement membrane.