B5 Flashcards
What is the Binomial naming sytem
It combines the Genus and species to give a name to a species
What is the order of the linnean sytem
Kingdom
Phylum
Class
Order
Family
Genus
Species
What are the rules when writting a species name
- written in italic
- only capitolise the first letter of the genus name
How can plants reproduce
asexually and sexually
How can animals reproduce
mostly sexually
Define fertilisation
Fusion of a male and female gamete
What is the result of sexual reproduction
A genetically different organism from its parents
What are gametes in plants
pollen and eggs
What are gametes in animals
Sperm and egg
What is a gamete
A sex cell used in sexual reproduction that contains half of the gentic material of a normal cell
How many chromasomes are in a human gametes
23
Does sexual reproduction require sex
No. Sexual reproduction is about gametes
What is the product of Asexual reproduction
A genetically identical offspring
(no genetic varitation)
Does Asexual reproduction require gametes
No. Gametes are not used in asexual reproduction
How many parents are involved in Asexual reproduction
1 parent
How do Eukaryotic cells Asexually reproduce
mitosis
What are examples Eukaryotic organisms that can Asexually reproduce
- Plants
- Fungi
How do plants and fungi Asexually reproduce
Through Mitosis
How do bacteria reproduce
Binary Fission
How do Prokaryotic organisms asexually reproduce
Binary Fission
What type of pathogen is E. coli
bacteria
What is the digestives styem first line of deffence against pathogens
Stomach acid
What acid is found in the stomach
hydrochloric acid
What is the name of the chemical on a pathogen that stimulates and immune response
antigen
What is the name of the process when white blood cells engulf a pathogen?
phagocytosis
What sytem in the body is affected by AIDs/HIV
Immune sytem
What STIs can be treated with antibodies
gonorrhoea
Staphylococcus aureus
chlamydia
What type of response does the immune sytem give out on its first exposure to a pathogen
Primary immune response
On exposure to an antigen, B lymphocytes divide into what two cells?
- antibody-producing lymphocytes (plasma cells)
-memory lymphocyte
What is the disease that causes plants to have “mosaic-like” discolouration of the leaves.
tobacco mosaic virus
What does TMV stand for
tobacco mosaic virus
What is the function of a cillia cell
waft the mucus to the back of the throat
What type of pathogen is tobacco mosaic disease
virus
How can Plant diseases can be detected?
- DNA
-antigens
What part of the blood helps to clot and close up a wound
platelets
