Science
Control and Coordination
Practice questions
Tendrils coil around support after touch. Why is it called a growth response and not just feeling of touch?Why are receptors of the nose and tongue called chemical receptors?If parts of the inner ear related to balance have a problem, why may a person feel dizziness?If a plant grows towards light but its root grows downward in darkness, what does this show?A runner's heartbeat increases before the race starts. This is mostly related to the effect of which hormone?If thyroxine level is low, why can normal body functions be affected?How is chemical coordination in plants different from nervous coordination in animals?During running, more blood goes to muscles and less to the digestive system. This is linked with which condition?What is the correct higher-level difference between the functions of the cerebrum and cerebellum?Why is it wrong to say that plants do not respond while studying control and coordination in plants?Why can both excess and deficiency of growth hormone create problems for the body?Even if hormonal control is delayed, why does it remain useful for the body?Why can body functions become disturbed if there is an error in control and coordination?What is the deepest conclusion of this chapter?If the amount of chemical messenger at a synapse becomes very low, what will happen to the nerve message?Which statement best explains the direction of a nerve impulse?If a drug prevents the chemical messenger at a synapse from breaking down, what may happen?A person can feel touch but has difficulty lifting the hand. Which part of the nerve pathway may be more affected?If a person's blood sugar remains high for a long time after food, which conclusion is most suitable?According to negative feedback, what should happen to insulin secretion when blood sugar becomes normal?