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WorksheetsF4 BIO C11+C12
Total questions: 15
Worksheet time: 11mins
Immunity that occurs when a person's own immune system produces antibodies in response to the presence of a pathogen when a person gets sick
Natural Passive Immunity
Natural Active Immunity
Artificial Active Immunity
Artificial Passive Immunity
Which immunity is present at birth and passed from the mother to the baby through milk and the placenta?
Artificial Active Immunity
Natural Active immunity
Natural passive immunity
Artificial passive immunity
Not specific and aims to prevent the entry of pathogens into the human body
Second line defence
First line defence
Third line defence
Immunity
Which are the physical barrier in first line defence?
Skin
Sweat
Mucous membrane
Cilia
Vaccine is made of
Weakened live pathogens
Dead pathogens
Bacteria
Antiserum
What is the advantage of active immunity?
Long period of immunity
Takes time to produce sufficient amount of antibody
Produce its own antibody
Memory cell is formed
What are the functions of myelin sheath?
Protect the axon from injury
As the control centre
Faster transmission of nerve impulse
Provide nutrients to the axon
What is the function of node of ranvier?
As the control centre
Transmit nerve impulses away from the cell body
Speed up the transmission of signals
Separate myelin sheath
The statements below are true except
Sensory neuron(afferent neuron) transmits impulses from receptors to the CNS
Relay neuron(Interneuron) connects sensory and motor neurones
Motor neuron(Efferent neuron) transmits impulses from the sensory neuron to effectors
Motor neuron(Efferent neuron) transmits impulses from the CNS to effectors
What are the functions of synapse?
To ensure that a nerve impulse travels in only one direction
Speed up the transmission of signal
Protect dendrite
Enable the transmission of information from one neuron to another neuron
The following below are the characteristic of endocrine gland except
Ductless glands
Produce hormone directly into the bloodstream
Electrical signal act as chemical messengers
Small amount of hormones are needed to produce an effect
Pancreas contains beta cell and alpha cell which secrete
Glucose and water
Amino acid and fat
Insulin and glycogen
Insulin and glucagon
Under a stressful condition, nervous system and the endocrine system coordinate to prepare the body for
Homeostasis
Immunity
Digestion
Fight or flight situation
What is the effect of growth hormone deficiency?
Goiter
Miscarriages
Dwarfism
Gigantism
