Olympiad (Class 10) Control and Coordination — practice questions
22 free MCQs with worked solutions. Tap any question for the answer + explanation, or practice them all in the app.
Practice Olympiad (Class 10) Control and Coordination in the app →An electrical signal in a nerve cell starts at the dendrite and travels along the:The tiny gap between the end of one neuron and the next one is called a:The tissue built from a network of neurons and specialised for conducting signals is:A boy pulls his hand from a flame before he even thinks. The pathway used is a:Reflex arcs are formed in which part of the body?The brain and the spinal cord together make up the:Cranial nerves and spinal nerves together form the:The human brain is divided into how many major regions?The main thinking part of the brain, with regions for hearing and sight, is the:Actions we cannot control by thinking are handled by the mid brain and the:The part of the brain that gives precision to voluntary actions and keeps balance is the:The leaves of the sensitive plant fold at a touch, yet the plant has no:A shoot on a windowsill bends towards the light. This directional growth is:Roots grow down and shoots grow up in answer to the pull of the earth. This is:A pollen tube grows towards an ovule. This directional growth is an example of:When light falls on one side of a shoot, auxin gathers on the:The plant hormone that promotes cell division is:The plant hormone that signals growth to stop, such as in wilting, is:A student is startled by a loud noise and her heart races. The hormone released is:Iodised salt is recommended because iodine lets the thyroid gland make:A person lacking iodine may develop a swollen neck. This condition is:A patient with diabetes is given injections of the hormone: