Animal Hormones

Q. Which of the following is a hormone in humans?

1. All are hormones
2. Penicillin
3. Pepsin
4. Insulin

Q. Bending of plant towards light is caused by .

1. auxin
2. cytokinin
3. gibberellin
4. ethylene

Q.

_______ are chemical substance produced and released into the environment by an animal, especially a mammal or an insect, affecting the behaviour or physiology of others of its species.

1. Hormones
2. Pheromones
3. Sweat
4. All of the above

Q. A plant always bends towards light. This is due to the action of a hormone called _____ and its found at _______.

1. gibberellins , end of shoots
2. auxin , shady parts of shoot
3. auxin , tip of the leaves
4. gibberellins , tip of the shoot

Q.

_______ are chemical substance produced and released into the environment by an animal, especially a mammal or an insect, affecting the behaviour or physiology of others of its species.

1. Hormones
2. Pheromones
3. Sweat
4. All of the above

Q. _________ is a chemical messenger released into the blood by endocrine glands.

1. Hormone
2. Pheromones
3. Steroids
4. Neurotransmitter