Biology was gcse paper 1 Flashcards
1
Q
Differences between prokaryotic (bacteria cells) and eukaryotic cells (animal and plant cells)
A
Bacteria lack a nucleus and chloroplasts they are smaller and have circular DNA and plasmids
2
Q
What is a plasmid
A
The genetic material in bacteria cells that can replicate independently of the chromosomes they are typically a small circular DNA strand in the cytoplasm
3
Q
How are sperm cells adapted for their function
A
Acrosome- contains enzymes to digest a path through the egg
Tail/flagellum help it swim to the egg
Haploid nucleus so diploid is formed at fertilisation
Many mitochondria to release energy for sperm to swim
