Biopsychology - AQA A level LATEST 2025 EXAM WITH QUESTIONS AND CORRECT VERIFIED
ANSWERS| GRADED A+ GUARANTEED 100% PASS
The two roles of the human nervous system -CORRECT ANSWER-To collect, process and
respond to information in the environment
to co-ordinate the working of different organs and cells in the body
the two subsystems of the nervous system -CORRECT ANSWER-peripheral nervous system
central nervous system
The divisions of the peripheral nervous system -CORRECT ANSWER-autonomic nervous
system
somatic nervous system
The autonomic nervous system function -CORRECT ANSWER-governs all vital functions in the
body such as breathing, heart rate, digestion, sexual arousal and stress responses
Split into the sympathetic nervous system and the parasympathetic nervous system
The parts of the central nervous system -CORRECT ANSWER-The brain: centre of all
conscious awareness, the outer layer is called the cerebral cortex and is divided into two
hemispheres
The spinal cord: an extension of the brain, responsible for reflex actions
The peripheral nervous system -CORRECT ANSWER-sends information to the CNS from the
outside world and transmits messages from the CNS to muscles and glands
,The central nervous system -CORRECT ANSWER-is the origin of all complex commands and
decisions
The endocrine system -CORRECT ANSWER-One of the body's major information systems that
instructs glands to release hormones directly into the bloodstream, these hormones are
carried towards target organs in the body
Gland -CORRECT ANSWER-An organ in the body that synthesises substances such as
hormones
Hormones -CORRECT ANSWER-chemical substances that circulate in the bloodstream and
only affect target organs, they are produces in large quantities but disappear quickly
The pituitary gland -CORRECT ANSWER-The main endocrine gland, often called the master
gland because it controls the release of hormones from all other endocrine glands in the
body
Fight or Flight response -CORRECT ANSWER-1. when a stressor is perceived the
hypothalamus triggers activity in the sympathetic branch of the autonomic nervous system
2. The ANS changes from its normal resting state (the parasympathetic state) to the
physiologically aroused sympathetic state
3. The stress hormone adrenaline is released into the bloodstream - adrenaline triggers
physiological changes in the body e.g. increased heart rate, necessary for the response
4. once the threat has passed the parasympathetic nervous system returns the body to its
resting state, it acts as a break and reduces the activities of the body that were increased by
the actions of the sympathetic branch, sometimes referred to as the rest and digest
response
sympathetic state -CORRECT ANSWER-- increases heart rate
- increases breathing rate
- dilates pupils
- inhibits saliva production
, - contracts rectum
Parasympathetic state -CORRECT ANSWER-- decreases heart rate
- decreases breathing rate
- contracts pupils
- stimulates digestion
- stimulates saliva production
- relaxes rectum
The structure of a neuron -CORRECT ANSWER-- Vary in size from less than a millimeter to up
to a meter long
- the cell body (or soma), dendrites, axon, myelin sheath, nodes of Ranvier and terminal
buttons
Cell body (soma) of a neuron -CORRECT ANSWER-includes a nucleus, which contains the
genetic material of the cell
Dendrites -CORRECT ANSWER-branch-like structures that protude from the neuron cell body
Axon -CORRECT ANSWER-carries the impulses away from the cell body
Myelin sheath -CORRECT ANSWER-fatty layer that protects the axon and speeds up chemical
transmission
Nodes of Ranvier -CORRECT ANSWER-where the myelin sheath is segmented to maintain the
speed of chemical transmission
Terminal buttons -CORRECT ANSWER-Communicate between neurons
ANSWERS| GRADED A+ GUARANTEED 100% PASS
The two roles of the human nervous system -CORRECT ANSWER-To collect, process and
respond to information in the environment
to co-ordinate the working of different organs and cells in the body
the two subsystems of the nervous system -CORRECT ANSWER-peripheral nervous system
central nervous system
The divisions of the peripheral nervous system -CORRECT ANSWER-autonomic nervous
system
somatic nervous system
The autonomic nervous system function -CORRECT ANSWER-governs all vital functions in the
body such as breathing, heart rate, digestion, sexual arousal and stress responses
Split into the sympathetic nervous system and the parasympathetic nervous system
The parts of the central nervous system -CORRECT ANSWER-The brain: centre of all
conscious awareness, the outer layer is called the cerebral cortex and is divided into two
hemispheres
The spinal cord: an extension of the brain, responsible for reflex actions
The peripheral nervous system -CORRECT ANSWER-sends information to the CNS from the
outside world and transmits messages from the CNS to muscles and glands
,The central nervous system -CORRECT ANSWER-is the origin of all complex commands and
decisions
The endocrine system -CORRECT ANSWER-One of the body's major information systems that
instructs glands to release hormones directly into the bloodstream, these hormones are
carried towards target organs in the body
Gland -CORRECT ANSWER-An organ in the body that synthesises substances such as
hormones
Hormones -CORRECT ANSWER-chemical substances that circulate in the bloodstream and
only affect target organs, they are produces in large quantities but disappear quickly
The pituitary gland -CORRECT ANSWER-The main endocrine gland, often called the master
gland because it controls the release of hormones from all other endocrine glands in the
body
Fight or Flight response -CORRECT ANSWER-1. when a stressor is perceived the
hypothalamus triggers activity in the sympathetic branch of the autonomic nervous system
2. The ANS changes from its normal resting state (the parasympathetic state) to the
physiologically aroused sympathetic state
3. The stress hormone adrenaline is released into the bloodstream - adrenaline triggers
physiological changes in the body e.g. increased heart rate, necessary for the response
4. once the threat has passed the parasympathetic nervous system returns the body to its
resting state, it acts as a break and reduces the activities of the body that were increased by
the actions of the sympathetic branch, sometimes referred to as the rest and digest
response
sympathetic state -CORRECT ANSWER-- increases heart rate
- increases breathing rate
- dilates pupils
- inhibits saliva production
, - contracts rectum
Parasympathetic state -CORRECT ANSWER-- decreases heart rate
- decreases breathing rate
- contracts pupils
- stimulates digestion
- stimulates saliva production
- relaxes rectum
The structure of a neuron -CORRECT ANSWER-- Vary in size from less than a millimeter to up
to a meter long
- the cell body (or soma), dendrites, axon, myelin sheath, nodes of Ranvier and terminal
buttons
Cell body (soma) of a neuron -CORRECT ANSWER-includes a nucleus, which contains the
genetic material of the cell
Dendrites -CORRECT ANSWER-branch-like structures that protude from the neuron cell body
Axon -CORRECT ANSWER-carries the impulses away from the cell body
Myelin sheath -CORRECT ANSWER-fatty layer that protects the axon and speeds up chemical
transmission
Nodes of Ranvier -CORRECT ANSWER-where the myelin sheath is segmented to maintain the
speed of chemical transmission
Terminal buttons -CORRECT ANSWER-Communicate between neurons
