Pheromones

Q.

Milk secretion and milk ejection is stimulated by ........................ and ....................... respectively.

Q.

Which of the following statement(s) is/are true about pheromones?

1. Pheromones stimulate the plants to produce more honey

2. Pheromones help honeybees to live in colonies

3. Pheromones help in attracting mates

4. Pheromones are secreted in trace amounts

Q. For the action of hydrophilic hormones, secondary messengers are generated only when the hormone binds to cell surface receptors.

1. True
2. False

Q.

How do ants make a long trail?

1. By producing testosterone

2. By producing oestrogen

3. By producing pheromones

4. By producing formic acid

Q. State whether the following statements are true or false.
Pheromones are chemical substances, meant for. communication and coordination of organs in an individual.

1. True
2. False

Q.

___ are chemical substances that facilitate communication among organisms.

1. Hormones

2. Pheromones

3. Progesterone

4. Auxins

Q.

Pheromones are NOT responsible for which of the following?

1. attracting a sexual partner

2. communicating with other organisms

3. warning or threat to other organisms

4. inducing menstrual cycle

Q. What is pheromones?

Q. Boundary of territory in animals is marked by

1. Defaecation
2. Excreta
3. Pheromones present in urine, fur and dander
4. Nail markings

Q. Chemicals synthesized by one organism that affect behaviour of another member of the same species are called

1. Enzymes
2. Pheromones
3. Hormones
4. Flavoids

Q. Which one of the following is called intra-specific chemical messenger?

1. Pheromones
2. Corticotrophin
3. Catecholamines
4. Prostaglandins

Q.

Which bee produces pheromones?

Q. Match the glands with the hormones secreted by them.

1. Thyroxine
2. Insulin
3. Testosterone
4. 
5. 
6. 

Q. Pheromones are

1. Produced by endocrine glands
2. mRNAs
3. Chemicals used in animal communication
4. Proteins

Q. Which one of the following is called intraspecific chemical messenger?

1. Prostaglandins
2. Corticotropin
3. Pheromones
4. Catecholamines

Q. Which of the following pheromone is involved in sexual reproduction in silk moth?

1. Civetone
2. Bombykol
3. Villikinin
4. Ecdyson

Q. Pop the bubbles containing uses of pheromones.

1. Attracting mates
2. Locating food
3. Warning others
4. Maintaining path
5. Killing pests
6. Producing food
7. Removal of waste
8. Exchanging gases

Q. Which of the following is not a example of sex pheromone?

1. Bombykol
2. Muskone
3. Formic acid
4. Civetone

Q. A male moth finds a mate by means of her

1. Thyroxine
2. Ecdysone
3. Brain hormone
4. Pheromone