lesson 2/ senses
What does cone cells do?
Cone cells helps see color
Can everyone taste PTC strips?
No
Define inherited traits
A physical characteristic of a person that can be passed down from a parent to a child.
Does everyone have the same chromosomes?
No
Define nucleus
organelle in cells that contains the genes.
What does rod cells help do?
Rod cells help see black and white.
What causes you to taste or not taste PTC?
Protiens
Define signal
A chemical reaction within a human cell that travels along a nerve to the brain.
Where in our bodies are our genes?
Genes are found in the nucleus of almost every cells.
Define chromosomes
Threadlike structures made of DNA molecules that contain the genes and are found in the nucleus.
How does humans taste work?
At first the food touches you papillae then it signals the taste receptor cells and goes through the facial nerve and signals the brain.
Determines how it functions.
Define taste buds
Structures on the tongue that contain the receptor cells for taste.
What is special about the 23rd pair of chromosomes?
It determines the gender.
Define allele
Different version of the same gene.
How do our senses work?
By using specialized cells that send signals through the nerves to the brain, the brain then processes the signal.
What do opsins allow us to do?
Allows us to see the right color.
Define proteins
A special type of molecule in our bodies that can do things in our cells. A molecule made up of a chain of amino acids that performs tasks like stimuli, signaling cells, and causing chemical reaction.
What is the connection between chromosomes, nucleus ans cell?
The nucleus is in the cell and the chromosomes are in the nucleus.
Define offspring
Product of reproduction, a new organism produced by one or more proteins.
how do humans see color?
Hits cone cells then the signal goes through the optic nerve and signals your brain.
If the opsins has a similar shape to another opsins, it will send a confusing signal to the brain.
Define opsins
light sensitive receptor proteins found in the cone cells that sends signals to the brain to translate.
In which pair of chromosomes is gender found?
23rd pair
Define sexual reproduction
A method of reproducing where offspring get half their genes from each parent at random