Biology 202 - Exam 3 Questions and answers with accurate rationales(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
, Biology 202 - Exam 3 Questions and answers with accurate rationales(PASSED).
-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
-moves independently of the body
-major function is immunity
Platelets - (ANSWER)-tiny disc shaped bits of cytoplasm
-no nucleus
-function is clotting
Steps of clotting - (ANSWER)1. vasoconstriction
2. platelet plug formation
3. clot
vasoconstriction - (ANSWER)smooth muscles contract, decrease in blood flow
Platelets plug formation - (ANSWER)platelets release college fibers which create a net and they release a
chemical that makes them sticky so they caustic together
Coagulation - (ANSWER)the rbc and platelets begin to clot till the tissue can regenerate it's self
blood vessel - (ANSWER)general name for artery, vein and capillary
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
, Biology 202 - Exam 3 Questions and answers with accurate rationales(PASSED).
-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
-moves independently of the body
-major function is immunity
Platelets - (ANSWER)-tiny disc shaped bits of cytoplasm
-no nucleus
-function is clotting
Steps of clotting - (ANSWER)1. vasoconstriction
2. platelet plug formation
3. clot
vasoconstriction - (ANSWER)smooth muscles contract, decrease in blood flow
Platelets plug formation - (ANSWER)platelets release college fibers which create a net and they release a
chemical that makes them sticky so they caustic together
Coagulation - (ANSWER)the rbc and platelets begin to clot till the tissue can regenerate it's self
blood vessel - (ANSWER)general name for artery, vein and capillary
