Specialised Cells - Red Blood Cells And Sperm / Egg Cells Flashcards
Due to its concave shape , red blood cells have …
A big surface area for absorbing oxygen. It also helps them pass smoothly through capillaries to reach body cells
What is haemoglobin?
The pigment that absorbs oxygen
In order to make room for haemoglobin what do red blood cells not have?
A nucleus
What are the main functions of a egg cell?
To carry the female DNA and to nourish the developing embryo in the developing stages
What does the egg cell contain?
Huge food reserves to feed the embryo
What happens when a sperm fuses with an egg?
The eggs membrane instantly changes its structure to stop more sperm getting in
The egg cell stops more sperm getting in so…
The offspring end up with the right amount of DNA
What is the function of the sperm?
To get the male DNA to the female DNA
How is the sperm adapted?
Long tail and a streamlined head to help it swim to the egg.
Lots of mitochondria I’m cell to provide energy
Enzymes in heads to digest through the egg ce membrane
What are red blood cells adapted to do?
Carry oxygen
