Like this study set? Create a free account to save it.

Sign up for an account

Already have a Quizlet account? .

Create an account

Biology II Exam 3 Flashcards


hormones that are derived from tyrosine or tryptophan


steroids are derived from


example of water soluble hormone (1)


example of water soluble hormone (2)


example of fat soluble hormone (1)


example of fat soluble hormone (2)

thyroid releasing hormone

hormone that stimulates the thyroid gland to make thyroid hormone


hormone that stimulates the production of milk

luteinizing hormone

hormone that stimulates the release of eggs in females


hormones that target smooth muscle uterine contractions (during birth and milk ejection)

endocrine portion

Islets of Langerhans are found in the

alpha and beta cells

Islets of Langerhans produce

alpha and beta cells

Islets of Langerhans produce


hormone produced in adipose tissue that acts in satiation


stimulates elongation of bones, especially during puberty


acts on liver to produce insulin-like growth factor-1

causes them to molt

what effects do 20-hydroxyecdysone have on insect development


what are sex hormones for?


portion of parent organism pinches off to form complete new individual


complete organism formed from fragment of parent body


development of offspring from unfertilized eggs.
some animals reproduce sexually or parthenogentically


formation of games

asexual reproduction

simple to produce many copies
can reproduce asexually even if isolated
can reproduce rapidly
more prevalent in species that live in stable environments with little selection pressure for genetic diversity

sexual reproduction

requires 2 individuals
allows for greater genetic variation due to genetic recombination


process by which a gamate goes from 2n to n

head (sperm)

contains genetic information passed onto child

midpiece (sperm)

contains mitochondria to keep cell alive

flagellum (sperm)

allows sperm to swim forward (not backward)

zona pellucid and cumulus mass

two layers that surround the ova

innate immunity

immunity - defenses present at birth and that function the same way regardless of invade.

acquired immunity

immunity - develops after exposure and targets an invader specifically.

antimicrobial protein

The nonspecific defense that uses membrane attack complex (MAC) to create channels in microbial plasma membrane

nonspecific defense

Interferons are proteins that generally inhibit viral replication inside host cells in response to viral infection.


Destroy or inactivate foreign invaders, clear the infected area from dead cells and other debris and set stage for tissue repair.


Engulf foreign matter and destroy it. (nonspecific defense)

active immunity

Acquired response to exposure to antigen
Natural or as a vaccination/immunization

passive immunity

Direct transfer of antibodies from one individual to another
Naturally via placenta or breast milk
Artificially when human patient given IgG molecules (for example after exposure to hepatitis)
S hort-lived because memory cells are not produced

plasma cells

produce antibodies

memory cells

remember antigen that invaded the body so second response can be faster.

fast block to polyspermy

fusion between the egg and sperm depolarizes the eggs so that no more sperm may enter.


a solid ball of cells during cleavage


fluid filled central region of a blastocyst


cells of a blastocyst

does not change size

how does the size of a fertilized cell compare to the size of a blastocyst?

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 and try again


Reload the page to try again!


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

Voice Recording