Cells Flashcards
1
Q
What substance carries the different components of blood around the body
A
Plasma
2
Q
What substances are transported by plasma
A
red blood cells white blood cells platelets carbon dioxide urea products of digestion
3
Q
What is plasma
A
a yellow liquid within the blood that transports substances around the body
4
Q
What do red blood cells do
A
carry oxygen around the body
5
Q
How are red blood cells adapted
A
Biconcave shape this means they have an increased surface area to voulme ratio
No nucleus so more room for haemoglobin to bind with oxygen
contains haemoglobin so binds to oxygen
6
Q
What s the purpose of white blood cells
A
protects the boy from invading pathogens
7
Q
How are white blood cells adpated
A
have a nucleus - contains DNA whih codes for proteins
can produce antibodies and antitoxins
can engulf and digest pathogens
