BIO 181 Test 1

tight junctions

What type of cell junciton would most likely prevent water from flowing between our cells?

upon increase in body temperature

Under what conditions would the skin produce sweat and experience cutaneaous vasodilation?

peroxisome

What is NOT part of the endomembrane system?

increased oily appearance and more acne

The surge of sex hormones that accompanies puberty has a wide range of effects on the body. One of those effects ist to enhance the activity of the sebaceous glands, increasing the production of sebum. Which of the following is the most likely to result from the increased sebaceous activity?

blood vessels

Which of the following is NOT found in cartilage but is found in bone?

striations

What do skeletal and cardiac muscles have in common?

shed dead cells

Trauma to stratum basale would NOT interfere with the skin’s ability to

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

Mitochondria _____

intracellular fluid (ICF)

Cytosol is also known as:

Golgi apparatus

Which organelle modifies, sorts, and packages proteins and lipids for export from the cell?

tear upon being mechanically stressed

Skin without keratin would be more likely to:

it converts modified epidermal cholesterol to a viatim D precursor important to calcium metabolism

In addition to protection (physical and chemical barrier), the skin serves other functions. Which of the following is another vital function of the skin?

may exhibit metastasis

cancer cells:

neurons

cells that generate, conduct, and receive electrical messages are:

simple columnar epithelium

You examine a tissue slide through the microscope and recognize one layer of cells that are mostly tall and elongated. You determine this tissue to be:

epidermis

Tommy fell and skinned his knee. This scrape did not bleed. He must have only damaged the:

nondividing cells

cells that stall in a state of the cell cycle known as G0 are said to be:

a phospholipid bilayer surrounding the cell

Whih of the following describes the plasma membrane?

epithelial tissue heals by regeneration

What happens to epithelial tissue damaged from a suprficial paper cut?

Stratified epithelia are present where protection from abrasion is important

Select the correct statement regarding eptihelia:

stratum basale, stratum spinosum, stratum granulosum, stratum lucidum, stratum corneum

from deep to superficial, what is the correct order of the layers of the epidermis?

osmosis

aquaporins may be employed during:

lines most of the respiratory tract

a ciliated version of the pseudostratified columnar epithelium containing mucus-secreting goblet cells _______

nucleus

Where does transcription of DNA into RNA occur?

diffusion transports nutrients from blood vessels in the dermis into the epidermis

How do nutrients reach the epidermis of the skin?

its primary function is nutrient storage

Select the correct statement regarding adipose tissue:

DNA replication (synthesis) takes place

What occurs during the period of interphase known as the S phase?

urinary system

Which organ system is lined by transitional epithelium to accomodate stretching?

ciliated simple columnar epithelium

choose which tissye woudl line the uterine (fallopian) tubes and fucntion as a “conveyer belt” to help move a fertilized egg towards the uterus

collagen

the fiber type that gives connective tissue great tensile strength is ______

dense regular collagenous connective tissue forms tendons and ligaments

What statement best describes dense regular collagenous connective tissue?

translation

Tetracycline is antibiotic used to treat infections. It binds with bacterial ribosomes and inhibits the tRNA molecule from binding to the ribosome. What process is interupted?