Nat5 Biology Unit 2 Multicellular Organisms Key Area 3 Reproduction Flashcards
Which cells are are haploid?
Gametes, because they only have one set of chromosomes
Which cells are diploid
All cells, (except gametes) because they have two sets of chromosomes
What is the name of the sex cells in human females?
Ova (egg)
What is the name of the organ that produced sex cells in human females
Ovary
What is the name of the sex cell in human males?
Sperm
What is the name of the organ that produces sex cells in human males?
The Testis
Where does fertilization occur?
In the Oviducts
What structure contains female sex cells in plants? (What is the sex cell)
The Ovule
What is the name of the organ producing female sex cell in plants?
The Ovary
What structure contains male sex cells in plants? (What is the sex cell)
Pollen grain
What is the name of the organ producing male sex cell in plants?
The Anther
How does fertilization occur in humans?
When the sperm’s nucleus fuses with the egg’s nucleus and this produces a single cell called a zygote which has two sets of chromosomes (diploid) and divides to form an embryo
Fertilization is a…
rAnDoM pRoCeSs
What are the different parts of the sperm cell?
The enzyme packet, the ‘head’ which contains the nucleus, the neck and the tail
What are the different parts of the egg cell?
The nucleus, the cytoplasm, the cells membrane, and the jelly layer
