CBSE Class 11 (Science) Neural Control and Coordination — practice questions
80 free MCQs with worked solutions. Tap any question for the answer + explanation, or practice them all in the app.
Practice CBSE Class 11 (Science) Neural Control and Coordination in the app →The resting membrane potential of a typical neuron is approximatelyThe rapid depolarisation phase of an action potential is caused bySignals between two neurons across a chemical synapse are transmitted byThe neurotransmitter released at the NEUROMUSCULAR JUNCTION is:The cerebral lobe primarily responsible for VISION is the:The 'fight-or-flight' response is primarily mediated by the:In the retina of the human eye, the COLOUR + sharp daylight vision is mediated by:PARKINSON'S DISEASE is caused primarily by:Hydra's nervous system is just a network of neurons. Insects are better organised because they have a:The brain and spinal cord together form the:A nerve fibre carrying an impulse from your skin to the CNS is:Your heart rate and gut movement are controlled without thought by the:A neuron has three major parts: cell body, axon and:The bulb at the tip of an axon branch holding neurotransmitter vesicles is the:The gaps between adjacent myelin sheaths are called:At rest, the axon membrane is more permeable to:The sodium-potassium pump moves 3 sodium ions out for every ___ potassium ions in.The potential difference across a resting neuron membrane is the:When the membrane's polarity flips at a stimulated site, it is said to be:Junctions through which an impulse passes from one neuron to the next are:Which type of synapse is faster but rare in humans?The brain is protected inside the skull by three membranes called:The two cerebral hemispheres are joined by a fibre tract called the:The cerebral cortex looks grey because it is packed with:Your body temperature and the urge to eat and drink are set by the:The four round swellings on the dorsal midbrain are the:Breathing, cardiovascular reflexes and gastric secretion are controlled by the:Pulling your hand off a hot pan without thinking is a:In a reflex arc the afferent neuron enters the spinal cord through the:Smell receptors in the nose are called:Which highly specialised cells detect, receive and transmit stimuli in animals?How is the neural system of Hydra organised?In which animals is a brain present along with a number of ganglia?Which two parts make up the human central neural system?The peripheral neural system is made up of which structures?The autonomic neural system sends impulses from the CNS to which organs?Which three major parts make up a typical neuron?Each branch of an axon ends in which bulb-like structure?Synaptic vesicles in the synaptic knob contain which chemicals?Which cells form the myelin sheath around myelinated axons?Myelinated nerve fibres are found mainly in which nerves?At rest, which ion does the axonal membrane almost block?In a resting neuron, the axoplasm has a high concentration of which ion?The sodium-potassium pump moves how many Na+ out for how many K+ in?At rest, what charge does the outer surface of the axonal membrane carry?When a stimulus is applied, the membrane becomes freely permeable to which ion?What happens to the polarity at the stimulated site as Na+ rushes in?The potential difference at a depolarised site is called what?Which event restores the resting potential after depolarisation?How is a nerve impulse conducted along an axon?What are the junctions through which impulses pass between neurons called?What are the two types of synapses?Which synapse transmits impulses faster?How common are electrical synapses in the human neural system?What separates pre- and post-synaptic membranes at a chemical synapse?What do synaptic vesicles do when an impulse reaches the axon terminal?Where do released neurotransmitters bind at a chemical synapse?The new potential produced in a post-synaptic neuron can be which kind?Which layer of the cranial meninges is outermost?Which meningeal layer is in contact with the brain tissue?Into which three major parts is the human brain divided?The forebrain consists of which structures?Which tract of fibres connects the two cerebral hemispheres?Why is the cerebral cortex called grey matter?Which regions of the cortex handle memory and communication?What gives the inner part of the cerebral hemisphere a white look?Which brain part is a major coordinating centre for sensory and motor signalling?Which part of the brain controls body temperature and urge for eating and drinking?Which structures belong to the limbic system?The limbic system with the hypothalamus regulates which function?Between which structures is the midbrain located?Which canal passes through the midbrain?The dorsal midbrain has four round swellings called what?Which three structures make up the hindbrain?Which hindbrain part has fibre tracts interconnecting different brain regions?Why is the surface of the cerebellum highly convoluted?Which part of the brain contains centres controlling respiration and cardiovascular reflexes?Which three regions together make up the brain stem?Nissl bodies in neurons are made up of which organelle and its ribosomes?Which type of neuron is found mainly in the olfactory epithelium and retina?