Specialised cells Flashcards
What does a palisade mesophyll cell have lots of ?
Chloroplast
A root hair cell has an extended (1)______ ___ for maximum(2) ________ of minerals and water.
1-surface area
2- absorption
What is the outer layer of an egg cell called + its function
Corona radiata
Is the outer protective layer
What does the sperm cell use to break down the egg cells protective layer?
Acrosome
What is the names of the sperm’s tail like structure
Undulipodium
What structure does the red blood cell have? And why?
Biconcave
To increase surface area
Why does the red blood cell have no nucleus?
To provide space for haemoglobin
What is the use of the multi-lobed nucleus in the white blood cell?
It is to provide space for the white blood cell to squeeze through gaps.
What is the use of all the lysosomes in the white blood cell?
The lysosomes are to help digest pathogens.
Why does the sperm cell have lots of mitochondria?
To supply energy for frequent movement.
What is the zona pellucida ?
It’s a transparent membrane of the egg cell, its like a jelly coat.
What is the use of the large vacuole in the root hair cell.
The root hair cell has a large vacuole, this contains cell sap- with a low water potential to increase osmosis into the cell.
