Anatomy and Physiology I Final

90 terms by clementsce1 

Create a new folder

Advertisement Upgrade to remove ads

All possible questions on Final exam

What is the main, general purpose of negative feedback?

To maintain homeostasis

An oblique cut is one that is

diagonally between the vertical and horizontal

A structure that is composed of two or more tissues would be an

an organ

Which of the following would not be a functional characteristic of life?

Decay

Which term means toward or at the back of the body, behind?

Dorsal

Which of the following statements is true concerning feedback mechanisms?

Negative feedback mechanisms work to prevent sudden severe changes within the body.

The anatomical position is characterized by all of the following except...

palms turned posteriorly

A good example of a positive feedback mechanism would be ...

enhancement of labor contractions

Which of the following describes a parasagittal plane?

any sagittal plane except the median

The parietal pleural would represent a serous membrane

lining the thoracic cavity

Homeostasis is the condition in which the body maintains

a relatively stable internal environment, within limits

In which cavities are the lungs located?

pleural , ventral, and thoracic

In which abdominopelvic cavity is the stomach located?

left upper

Which of the following statements is the most correct regarding homeostatic imbalance?

It is considered the cause of most diseases.

The dorsal body cavity is the site of which of the following?

Brain

One of the functional characteristics of life is irritability. This refers to ..

sensing changes in the environment and then reacting or responding to them

What is a vertical section through the body, dividing it into anterior and posterior regions called?

frontal

Which is NOT in the mediastinum?

Lungs

The change that a cell undergoes from an unspecialized one to a specialized one is called

differentiation

A feedback system consists of three basic components: q control center, a receptor, and a..

and effector

Any stimulus that tends to create and imbalance in the internal environment is known as

stress

The process of using energy to build p the body's structural and functional components is called

anabolism

When your digestive enzymes chemically break down beef proteins into their subunits (amino acids), this would be an example of

catabolism

If the number of a person's catabolic reactions are greater than his or her anabolic reactions , then this person is

losing weight

Growth by assimilation is

anabolic

The thorax is separated from the abdomen by the

diaphragm

The abdomino-pelvic cavity is divided into quadrants by horizontal and vertical lines passing through the

umbilicus

In which quadrant is the pain of appendicitis likely to be felt

right lower

In general, the lipids that we refer to as oils have

a high degree of unsaturated bonds

The genetic information is coded in DNA by the

sequence of the nucleotides

Which of the following is not true of proteins?

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

Carbohydrates are stored in the liver and muscles in the form of

glycogen

A chemical reaction in which bonds are broken is usually associated with

the consumption of energy

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

very acidic

Which of the following would be regarded as an organic molecule?

CH(4)

What is a chain of 25 amino acids called?

polypeptide

Carbohydrates and proteins are built up from their building blocks by the

removal of a water molecule between each two units

Which states about enzymes is false?

Enzymes raise the activation energy needed to start a reaction

Which of the following statements is false?

Larger particles move faster than smaller ones and thus collide more frequently and more forcefully

Isotopes of the same element _____ in their atomic masses due to a _________ number of neutrons,.

Differ; different

Which protein types are capable of repairing other proteins that were damaged by stress or heat shock?

Molecular chaperones

What is the neutralization reaction?

HCL + NaOH = NaCL + H2O

Amino Acids joining together to make a peptide is a good example of a(n) _________ reaction?

dehydration synthesis

Sucrose is a

disaccharide

If the half- life of I-131 is 2 1\2 months, how much radioactivity remains in the thyroid of a patient five months after treatment with this radioisotope?

25%

Which of these statements is true?

Alpha particles are much more massive than beta particles, and if inhaled,inflict much more damage.

With its single, unpaired outer-shell electron, a free radical is

extremely reactive

High energy radiation damages biological tissues because it

ionizes many neutral atoms, resulting in free radical formation

Water is an excellent solvent for most substances, but water will not dissolve

non polar components

An acidic solution is likely to have a great numbeer of

hydrogen ions

A healthy individual has a blood pH of

7.4

Most buffers in the body consist of a

weak acid

If you skip a meal and you later feel a lack of energy, your liver will split stored glycogen into smaller molecules known as

glucose

Lipids are insoluble in water for the simple reason that they are

non-polar

A saturated fat is saturated with

hydrogen

the most plentiful lipids in the body are

triglycerides

Steroids are classified as

lipids

Cell membranes must be both "hydrophobic and hydrophobic . which molecule can serve both of these requirements?

phospholipids

Cholesterol is a

steroid

Hair and nails are structural proteins. What is a good example of a functional protein

digestive enzymes

The number of different types of amino acids in humans is

20

Which statement is false?
Each enzyme can catalyze many different types of reactions
they are easily denatured at several degrees above the body temperature
They are catalysts that are made out of protein

A. each enzyme can catalyze many different type of reactions

Dehydration synthesis is

anabolic

Saturated fats

are more likely to contribute to arteriosclerosis than unsaturated fats

When a phosphate group is added to ADP. energy is being

stored

The RNA responsible for bringing the amino acids to the factory site for protein formation is capable of reading both the nucleic acid and language as well as the protein language. That molecule is known as

tRNA

A red blood cell placed in pure water would

swell and burst

Which of the following describes the plasma membrane

the phospholipid bi-ayer surrounding the cell

Describe diffusion?

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

Cell wastes are transported from the blood into the kidney tubules by

filtration

Cell junction include all of the following except

peroxisomes

If cells are placed in a hypertonic solution containing a solute to which the membrane is impermeable, what could happen?

the cells will lose water and shrink

Once solid material is phagocytized and taken into a vacuole, what best describes the events?

a lysosome combines with the vacuole and digests the enclosed solid material

Which of the following is a function of a plasma membrane protein?

molecular transport through the membrane

Which of the following would not be a constituent of a plasma membrane?

proteolipids

Which of these is an inclusion, not an organelle?

melanin

Passive membrane transport processes include

the movement of a substance down its concentration gradient

Mitochondria

contain some of the DNA and RNA code necessary for their own function

Peroxisomes

are able to detoxify substances by enzymatic action

DNA replication

takes place during the S Phase of the cell cycle

Which of the following is a principle of the fluid mosaic model of cell membrane structure?

Phospholipids form a bilayer that is largely impermeable to water-soluble molecules.

The main component of the cytosol is

water

Lysosomes

contain a powerful digestive enzyme that are potentially dangerous to the cell

The functions of centrioles include

organizing the mitotic spindle in cell division

Crenation is likely to occur in blood cells in

hypertonic solution

The Na +/ K + pump functions to maintain a concentration gradient such that

potassium levels are high inside the cell and sodium levels are high outside the cell

A cell's membrane has been describe as a fluid mosaic meaning its like a mosaic of _____, in a sea of ____________.

Proteins, Lipids

What is not a function of cell membrane proteins?

key role in aerobic respiration

Intravenous feeding is typically a 5% dextrose solution but this is a starvation diet, and patients will lose weight. Why don't they just administer a 10 % solution

it would result in a hypertonic extracelluler environment

If human cancer tissue were being studied in the laboratory for an extended period of time , the cells would be undoubedly be kept in a solution of nutrients that was

isotonic

Please allow access to your computer’s microphone to use Voice Recording.

Having trouble? Click here for help.

We can’t access your microphone!

Click the icon above to update your browser permissions above and try again

Example:

Reload the page to try again!

Reload

Press Cmd-0 to reset your zoom

Press Ctrl-0 to reset your zoom

It looks like your browser might be zoomed in or out. Your browser needs to be zoomed to a normal size to record audio.

Please upgrade Flash or install Chrome
to use Voice Recording.

For more help, see our troubleshooting page.

Your microphone is muted

For help fixing this issue, see this FAQ.

Star this term

You can study starred terms together

NEW! Voice Recording

Create Set