B iology 202 - Exam 3 Question s
an d answ er s w ith accu r ate
r ationales(PASSED)
The purpose of the circulatory system - answer -move materials around
the body
-delivers food and oxygen to cells
-carries waste away from cells
gastrovascular transport system - answer -stomach and internal
transport system all in one
-found in aquatic systems (jelly fish, coral, flat worms)
open circulatory system - answer -circulatory fluid called hemolymph
leaves the the vessels and mix with the fluid in the body
-in spiders, thicks, mites
closed circulatory system - answer -the circulatory fluid (blood) stays
inside the vessels
-annelid worms and vertebrates
Plasma - answer -Liquid part of blood
, -55% blood volume
serum - answer water part of the plasma
red blood cells - answer -carry oxygen
-45% of blood volume
Leukocytes - answer -white blood cells and platelets
- less than 1% of blood volume
hemoblasts - answer stem cells that produce all blood cells
Erythrocytes - answer red blood cells
-carry 99% of the oxygen
-produced in the bone marrow of long bone
-moves in single file line through the capillary
capillaries - answer one cell layer thick which makes diffusion easy, near
every cell of the body, and site of nutrients/gas/waste exchange
white blood cells - answer can consume another cell
an d answ er s w ith accu r ate
r ationales(PASSED)
The purpose of the circulatory system - answer -move materials around
the body
-delivers food and oxygen to cells
-carries waste away from cells
gastrovascular transport system - answer -stomach and internal
transport system all in one
-found in aquatic systems (jelly fish, coral, flat worms)
open circulatory system - answer -circulatory fluid called hemolymph
leaves the the vessels and mix with the fluid in the body
-in spiders, thicks, mites
closed circulatory system - answer -the circulatory fluid (blood) stays
inside the vessels
-annelid worms and vertebrates
Plasma - answer -Liquid part of blood
, -55% blood volume
serum - answer water part of the plasma
red blood cells - answer -carry oxygen
-45% of blood volume
Leukocytes - answer -white blood cells and platelets
- less than 1% of blood volume
hemoblasts - answer stem cells that produce all blood cells
Erythrocytes - answer red blood cells
-carry 99% of the oxygen
-produced in the bone marrow of long bone
-moves in single file line through the capillary
capillaries - answer one cell layer thick which makes diffusion easy, near
every cell of the body, and site of nutrients/gas/waste exchange
white blood cells - answer can consume another cell
