Biochemistry (Unit1)
This is a positively charged particle.
What is a proton?
Maintenance of a stable internal environment in response to changing internal and external factors
What is Homeostasis?
A long acting chemical messenger which travels in the bloodstream
What is a hormone?
A molecule made up of at least two different types of atoms.
What is a compound?
The largest organelle in the cell, which contains genetic information and controls cell function.
What is a nucleus?
A nucleic acid that has a double helix structure and carries genetic information.
What is DNA?
change to the internal or external environment of an organism that triggers a response in the organism.
What is a stimulus
A hormone produced by the adrenal gland
What is adrenaline?
A simple sugar used to release energy (ATP)
What are glucose molecules?
the process through which many autotrophs make glucose
What is photosynthesis?
Segments of DNA that encode for proteins.
What are genes?
a system which uses both electrical and chemical signals to identify and react to change in stimulus
What is the nervous system?
sensory receptors that detect chemical information and send signals along afferent neurons to the CNS
what is a chemoreceptor?
A chain of glucose molecules which are bound together, to form a bigger molecule, which is called a polysaccharide
What is a starch?
an organelle that produces proteins
what is a ribosome
Movement from an area of high concentration to low concentration
What is diffusion?
The hormone which lowers blood glucose levels
What is insulin?
hormones that bind to receptors in the same cell that produced them
What is an autocrine hormone?
An organic compound made up of amino acids.
What are proteins?
respiration without the presence of oxygen
What is anaerobic respiration?
The movement of substances across the plasma membrane from an area of high concentration to an area of low concentration without the need of energy.
What is passive transport?
What is action potentials?
A gland which releases a substance onto an epithelial surface
What is an Exocrine gland