CONTROL AND COORDINATION
Very Short Question And Answers
Q1: Which chemical induces artificial ripening of fruits?
Answer: Ethylene
Q2: What is stimulus?
Answer: The changes in the environment to which an organism responds and reacts is called stimulus.
Q3: Name the longest cell present in the human body.
Answer: Neuron is the longest cell in the human body.
Q4: Give examples of glands which act as both endocrine and exocrine.
Answer: Pancreas, Testes, Ovaries
Q5: What are nastic movements?
Answer: Movements of plants which are independent of stimuli are called nastic movements. e.g. movement by Touch-Me-Not (Mimosa) plant i.e. leaves close or droop when touched.
Q6: Where do you find gustatory receptors?
Answer: On the tongue.
Q7: What do olfactory receptors detect?
Answer: They detect smell.
Q8: Name the hormone released by thyroid gland.
Answer: Thyroxin.
Q9: Where is Hypothalmus is located?
Answer: In the brain.