circulatory system- blood Flashcards
1
Q
what do RBC carry
A
oxygen
2
Q
what is the job of the RBC
A
to carry oxygen from lungs to rest of the body
3
Q
the shape of a RBC gives them a ….
A
large surface area for absorbing oxygen
4
Q
RBC contain a red substance called
A
haemoglobin
5
Q
what does the haemoglobin do
A
allows RBC to carry oxygen
6
Q
why don’t RBC not have a nucleus
A
more room for carrying oxygen
7
Q
what do WBC do
A
defend against infection
8
Q
what cell in the blood is part of your immune system
A
WBC
9
Q
what do WBC do to pathogens/ microorganisms
A
engulf them
10
Q
some WBC produce ……. and ……. to defend against microorganisms
A
antibodies and antitoxins
11
Q
do WBC have a nucleus
A
yes
12
Q
what do platelets help with
A
blood clots
13
Q
what are platelets
A
small fragments of cells
14
Q
do platelets have a nucleus
A
no
15
Q
where do platelets help the blood go clot
A
at wounds
