Biology Revision Year 9 2024

Any organism that causes disease

• pathogen
• virus
• vector
• bacteria

Which of the following is a characteristic of an infectious disease compared to a non-infectious disease?

• Caused by genetic factors
• Not transmissible between individuals
• Caused by pathogens
• Often associated with lifestyle factors

Which of the following is a non-infectious diseases?

• cholera
• mumps
• chickenpox
• diabetes

The brain and spinal cord make up which part of the nervous system

• peripheral nervous system
• central nervous system
• partial nervous system
• coordinated nervous system

Which part of the nervous system extends out into the body in a system of nerves?

• peripheral nervous system
• central nervous system
• partial nervous system
• coordinated nervous system

What detects changes in the environment?

• the brain
• motor neurons
• sensory receptors
• spinal cord

Motor neurons carry nerve pulses

• from the muscle to the central nervous system
• from the central nervous system to the muscle
• from the sensory receptor to the central nervous system
• from the central nervous system to the sensory receptor

What parts of the body is NOT involved in the knee jerk reflex?

• brain
• spinal cord
• motor neuron
• sensory neuron

The gap between two adjacent neurons

• myelin
• neurotransmitters
• synapse

• dendrite

Compared to the endocrine system, the nervous system is

• slower to occur but shorter lasting
• slower to occur but longer lasting
• faster to occur but longer lasting
• faster to occur but shorter lasting