Endocrine System

Question 1

produce regulatory chemicals through

the hormones that control many bodily activities.

Answer 1

endocrine

Question 2

functions both as a neurotransmitter and hormone. It is released as a neurotransmitter in nerve endings and by the adrenal gland as a hormone during stressful conditions.

Answer 2

Norepinephrine

Question 3

as the molecules work without being transported into the blood but similar in the
way hormones work by regulating target cells.

Answer 3

paracrine

Question 4

ductless glands that secrete hormones directly into the

blood stream or fluid around the cells (extracellular fluid).

Answer 4

endocrine glands

Question 5

classified either as peptide, proteins,

glycoproteins or steroid.

Answer 5

hormones

Question 6

lipid in nature, can easily pass through the cell membrane.

Answer 6

steroid hormones

Question 7

cannot diffuse into the plasma membrane of the target cell, but must first bind to a receptor
protein in the plasma membrane as an initial messenger.

Answer 7

peptide hormones

Question 8

regulation if high level of hormone stimulate the output of more even more hormone

Answer 8

positive feedback

Question 9

milk production

Answer 9

prolactin

Question 10

milk ejection

Answer 10

oxytocin

Question 11

process of growth in a certain direction in

response to stimulus

Answer 11

tropism

Question 12

plant response to light is mediated by photoreceptors that is composed of protein bound to a light absorbing
pigment called _______

Answer 12

chromophore

Question 13

The bending of

plants toward a light

Answer 13

phototropism

Question 14

The negative response of plant to light

Answer 14

skototropism

Question 15

a kind of tropism that is in response to the tracking of the sun’s direction.

Answer 15

Heliotropism

Question 16

Plant of blue-light absorbing photoreceptors, responsible to circadian rhythm of plants.

Answer 16

cryptochromes

Question 17

the stimulus plant use to detect the time
of the year for their flowering, seed germination and the beginning and ending of their dormancy
activities.

Answer 17

Photoperiodism

Question 18

Plant respond to gravity,plant root tips grow downward (positive
response), whereas plant shoots grow upward (negative response)

Answer 18

Gravitropism or geothropism

Question 19

Plant response to touch or any contact

Answer 19

thigmotropism

Question 20

plant hormones that control thigmotropism

Answer 20

ethylene and jasmonate

Question 21

Slight movements in response to stimulus

Answer 21

nastic movement

Question 22

observed as slow developmental change that can occur in the plant due to continuous mechanical stress, such as when trees bend in the wind.

Answer 22

thermomorphogenesis

Question 23

plant hormone for plant horizontal growth

Answer 23

auxin

Question 24

plant hormone for plant vertical growth and for seed germination / fruit production

Answer 24

gibberellins

Question 25

plant hormone that promotes cell division, delaying leave senescence and plant maturation

Answer 25

Cytokinins

Question 26

plant hormone for fruit ripening, and dropping of plant leaves

Answer 26

ethylene

Question 27

plant hormone that induces plant dormancy

Answer 27

Abscisic acid

Question 28

plant hormone that protect plant from fungal and bacterial infections

Answer 28

oligosaccharins

Question 29

plant hormones that protect plant from herbivores

Answer 29

jasmonates