Multicellular Organisms
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Where is the site of gas exchange in the lungs?
Alveoli
What is the name of the largest artery in the body found at the exit of the left ventricle?
Aorta
What are the features of an artery?
Blood vessel with thick muscular walls, that carries oxygenated blood at high pressure.
What is the name of the chambers in the heart that receive blood from the body and lungs?
Atrium - left and right
What transport oxygen, carbon dioxide glucose etc around the body?
The blood.
What part of a flower produces pollen?
The anther
What is a bronchiole?
Small air tubes found in the lungs that end at a cluster of alveoli.
What is the name of the air tubes at the end of the trachea?
Bronchi. Bronchus for one tube.
What is the name of the organ in the CNS that coordinates vital functions?
The brain.
What is the blood vessel where exchange of materials occurs?
The capillaries.
What strengthens the trachea?
The rings of cartilage.
What is the CNS?
The central nervous system. It consists of the brain and the spinal cord.
Which part of the brain controls balance and movement?
The cerebellum.
What is the function of the cerebrum?
Memory, learning and decision making.
What are the small hair like structures on cells found in the trachea?
Cilia
Phloem are made up of sieve tube and what type of cells?
Companion cells
Eye colour and hair colour are what type of variation?
Discrete variation
A dominant allele will always show in an organisms….
Phenotype
Almost all cells have 2 set of chromosomes. What is this known as?
Diploid
What type of glads produce hormones
Endocrine glands.
When a sperm cell fuses with an egg cell it is known as?
Fertilisation
What are gametes?
Sex cells eg sperm cells, egg cells and pollen
What is an organisms genotype?
The alleles for all genes that the organisms possesses.
What hormone is produced by the pancreas when blood glucose levels decrease?
Glucagon