2110 Lab Practice 1

Detergents are similar to phospholipids in that they are amphipathic compounds with both polar and nonpolar parts. What do you think would happen to a cell placed in a solution containing a detergent?

The cell membrane would break and dissolve in the detergent, spilling the contents equally throughout the solution.

Excretes salts in perspiration and helps regulate body temperature

Integumentary System

In which cell stage does DNA replicate?

Interphase

Picks up fluids leaked from blood vessels and returns it to blood

Lymphatic System

What is the name of the structure labeled A?

Mitochondria

Identify the structure labeled C

Nucleolus

Identify the structure labeled G.

Rough er

Both the periwinkle and yew plants produce toxins that interfere with microtubules by binding to them and either inhibiting their assembly (in the case of the periwinkle) or preventing their disassembly (in the case of the yew). Why would both actions ultimately prevent mitosis?

The chromosomes would not be able to line up in the middle and separate the sister chromatids.

Predict what will happen to a patient's red blood cells if you give the patient an IV of pure water.

They will burst

Which of the following is NOT a structural component of the nucleus?

Which of the following is NOT a structural component of the nucleus? Golgi apparatus

Which of the following is NOT one of the functions of plasma membrane proteins? act as receptors as enzymes as channels

act as transport vesicles

What is a major function of the respiratory system?

deliver oxygen to the blood and remove carbon dioxide from the body

Breaks down food for distribution by blood to the body's cells

digestive system

Which of the following is NOT one of the three major components of animal cells?

ecf

Glands secrete hormones to regulate other structures

endocrine system

The system that controls and coordinates the body using hormones is the ________.

endocrine system

Proximal means farther from the origin of a body part.

false

You are dissecting an eye and you want to cut it into an anterior and a posterior section. You should cut along the __________.

frontal plane

The preparation of secretory vesicles for export from the cell is the responsibility of the ________.

golgi apparatus

What structure is found within the red circle?

golgi apparatus

A cell is placed into a 3% dextrose solution. At that concentration, the solution is isotonic to the cell. If the concentration of dextrose in the solution is increased to 5%, the cell is now in a(n):

hypertonic solution.

Cellular swelling is likely to occur when blood cells are immersed in:

hypotonic solutions.

The period of the cell cycle when the cell grows and performs its metabolic activities is ________.

interphase

What organelle degrades old, worn-out organelles and cell components?

lysosome

Name the mitochondrial structure identified by the question mark.

matrix

What phase of mitosis is shown in the image labeled D?

metaphase

Which of the following choices lists a function or functions of this organelle?

modify, sort, and package proteins and lipids

Movement of the body as a whole

muscular system

Identify the structures labeled F.

ribosomes

The vertebral region is superior to the:

sacral region

The muscular system consists of the ________.

skeletal muscles

A person in the anatomical position is visualized to be:

standing upright

During osmosis, the solvent moves across a selectively permeable membrane from a solution with a higher solute concentration to a solution with a lower solute concentration.

true

Removes nitrogen-containing wastes from the blood and disposes of them in the urine

urinary system

Identify the structure labeled C.

vesicle

What is the function of this membrane protein?

receptor

Identify the structures labeled D.

cholesterol

Which of the following is primarily composed of DNA?

chromatin

Which of the following best describes a cell's response to being placed into an extracellular solution that is hypertonic to the cytosol?

crenation

Which of the following is visible when viewing the anterior of a human body in anatomical position?

patellar region

Which region is associated with the lower limb?

popliteal

What is the correct order of the phases in the M phase of the cell cycle?

prophase, metaphase, anaphase, telophase

In which phase of mitosis does the number of chromosomes in a cell double?

telophase