Endocrine System

Question 1

These are specialized cells that secrete or synthesize chemicals

Answer 1

Chemical Messengers

Question 2

Short-distance messengers that act on adjacent cells

Answer 2

Local Chemical Messengers

Question 3

Neuron-secreted chemicals that cross the synaptic cleft to act on target cells

Answer 3

Neurotransmitters

Question 4

Secreted by neurosecretory cells, also called neurohormones

Answer 4

Neuropeptides

Question 5

These are chemical messengers transported externally and affects the behavior of other organisms

Answer 5

Pheromones

Question 6

Transported by the bloodstream into non-adjacent target cells

Answer 6

Hormones

Question 7

These chemical messengers act quickly and can be recycled

Answer 7

Neurotransmitters

Question 8

Body fluids transport these chemical messengers into non-adjacent cells

Answer 8

Neuropeptides

Question 9

These chemical messengers are more common in invertebrates and is their counterpart of hormones

Answer 9

Neuropeptides

Question 10

Hormone was derived from the Greek term ____ which means to set in motion

Answer 10

Hormaein

Question 11

What is the study of endocrine glands and their hormones?

Answer 11

Endocrinology

Question 12

A type of hormone secreted by the thyroid gland

Answer 12

Amine

Question 13

A type of hormone secreted by the ovaries, testes and adrenal glands

Answer 13

Steroids

Question 14

A type of hormone secreted by the pancreas

Answer 14

Polypeptides

Question 15

A type of hormone that is produced in almost all cells of the body and protects from injury and illness

Answer 15

Prostaglandins

Question 16

A type of hormone secreted at the site where it is needed

Answer 16

Fatty Acid Derivatives

Question 17

True or False: Hormones slow down the rate at which substances enter and exit the cell

Answer 17

False

Question 18

True or False: Hormones can stimulate a target cell to produce/synthesize proteins, enzymes etc.

Answer 18

True

Question 19

True or False: Hormones can prompt a target cell to only suppress existing enzymes

Answer 19

False

Question 20

This is used to control the level or amount of hormone production in an organism

Answer 20

Feedback Control System

Question 21

A change in a given direction that causes change in the opposite direction

Answer 21

Negative Feedback

Question 22

This type of feedback helps in birth contractions and the labor process

Answer 22

Positive Feedback

Question 23

A change in a given direction that causes change in the same direction

Answer 23

Positive Feedback

Question 24

The malfunction of this type of feedback can cause illness such as diabetes

Answer 24

Negative Feedback

Question 25

An invertebrate with no endocrine glands at all

Answer 25

Porifera / Sponges

Question 26

Cnidarians have ____-promoting hormones that stimulate budding and regeneration

Answer 26

Growth

Question 27

Flatworms and Nemerteans have neuropeptides in their ____

Answer 27

Ganglion / Ganglia

Question 28

The neuropeptides of Nematodes control their ____

Answer 28

Ecdysis

Question 29

This invertebrate produces Helix, which stimulates spermatogenesis, as well as an egg-laying hormone and growth hormone

Answer 29

Mollusks

Question 30

____ have a well-developed nervous system and endocrine control. They are able to produce juvenile, osmoregulatory and hyperglycemic hormones

Answer 30

Annelids

Question 31

This hormone is present in Crustaceans and stimulates ecdysis

Answer 31

Ecdysone

Question 32

With the absence of the juvenile hormone, Insects undergo ____

Answer 32

Metamorphosis

Question 33

The type of gland that secretes hormones into ducts, which empty into the body cavity

Answer 33

Exocrine Glands

Question 34

The type of gland that secretes directly onto the tissues and then pass through the vessels to other parts of the body

Answer 34

Endocrine Glands

Question 35

True or False: Hormones with same functions among all species are always chemically identical

Answer 35

False

Question 36

True or False: Hormones produced by a specific species may still be functional in another

Answer 36

True

Question 37

True or False: A hormone from one species will always serve the same function if functional in another species

Answer 37

False

Question 38

These two are the main producers of hormones in fish

Answer 38

Brain & Spinal Cord

Question 39

This gland is found in the fish brain, it increases pigmentation and is stimulated by light

Answer 39

Pineal Gland

Question 40

This is found in the tail area of the fish, this produces neuropeptides that help control water and ion balance

Answer 40

Urophysis

Question 41

How does melatonin affect or function in frogs?

Answer 41

Changes in skin color

Question 42

This hormone is produced by the Pituitary Gland and stimulates reproductive movement in many animals

Answer 42

Prolactin

Question 43

Located in the human brain, called the master controller. This uses info from the NS to signal other glands in the body

Answer 43

Hypothalamus

Question 44

Called the master gland, this produces hormones that controls other glands

Answer 44

Pituitary Glands

Question 45

Gland responsible for metabolism

Answer 45

Thyroid Gland

Question 46

4 tiny glands that control calcium levels

Answer 46

Parathyroid

Question 47

Gland that controls white blood cells

Answer 47

Thymus

Question 48

Gland that produces insulin and controls level of sugar

Answer 48

Pancreas

Question 49

Gland that controls metabolism, blood pressure and sexual development

Answer 49

Adrenal Gland