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bio week 4
bio week 4
17
Biology
Undergraduate 1
07/16/2010

Additional Biology Flashcards

 


 

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Term

Which cell type represents a reservoir for the production of new bone

Which cell type represents a reservoir for the maturing bone cells that maintain bone structure and density

Which cell type represents a reservoir for the releasing enzymes that break down bone to recyle minerals e.g. calcium

a.) osteoclasts

b.) osteoblasts

c.) osteocytes

Definition

New bone: osteoblasts

 

maintaining bone strcture and density: osteocytes

 

recyling bones: osteoclasts

Term
what ion must be present for myosin to bind actin and initiate muscle contraction
Definition
calcium
Term
what does the bone marrow consist of
Definition
red blood cells and fat storage (yellow)
Term

what type of lymphocyte carries out a secondary antibody-mediated immune response?

 

 

Definition
memory B cell
Term
What is Plasma B cells
Definition
secrete antibodies into the blood that bind and render antigens inactive
Term
what perforates the membranes of or trigger apoptosis in infected cells
Definition
cytotoxic C cells
Term
What binds APCS's and convey antigen information to other cell types
Definition
helper T cells
Term
What limits the response to spare body tissues from damage
Definition
regulatory T cells
Term
Name the class of photoreceptor involved in monochromatic night vision
Definition
rod
Term

what is cones

 

(vision)

Definition
concentrated at the central fovea, detecs red/green/blue in bright light
Term
what does the cerebral cortex use to build an image from visual information
Definition
genetically established rules
Term
what branch of the nervous system coordinates the "fight or flight" response?.....the "rest and digest?"
Definition

fight or flight: sympathetic

 

rest and digest: parasympathetic

Term
Pulmonary veins carry blood to and from what organs?
Definition
heart to lungs
Term
Veins carry blood to where
Definition
the heart
Term
vena cavae delivers blood from where to where
Definition
from the body to the right atrium
Term

two populations separated by geographical barriers may undergo___ speciation.

 

a.) allopatric

b.) sympatric

c.) stabilizing

Definition
a.) allopatric
Term

groups in a shared habitat become idolated by barriers to mating

 

a.) allopatric

b.) sympatric

c.) stabilizing

Definition
sympatric
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