Plant Growth and Development

Question 1

Which plant was used Darwins in their experiment?

Answer 1

Canary Grass (Phalaris)

Question 2

F.W. Went isolated chemical from?

Answer 2

OAT (Avena Sativa)
Human Urine(Auxin)

Question 3

Which plant shows flowering owing to Auxin?

Answer 3

Pineapple

Question 4

Auxin stimulates parthenocarpy in which plant?

Answer 4

Tomato

Question 5

What are example of natural Auxin?

Answer 5

IAA (Indole-3-Acetic Acid)
IBA (Indole-3-Butaric Acid)

Question 6

What are examples of synthetic Auxin?

Answer 6

NAA (Naphthalene Acetic Acid)
2,4-D (2,4 Dichloro Phenoxy Acetic Acid)

Question 7

What is the phenomenon called when two hormones accomplish the same objective?

Answer 7

Synergic Effect

Question 8

Skoog used which cell during his experiment?

Answer 8

Tobacco Cell+Auxin+Year/Coconut Milk/Vascular Tissue

Question 9

Cytokinin is derivative of?

Answer 9

Adenin and purine derivative

Question 10

What did Miller used in his experiment along with tobacco cell?

Answer 10

Miller used autoclaved herring fish sperm (DNA)

Question 11

Natural cytokinin was first isolated from?

Answer 11

Corn/Maize

Question 12

The first natural cytokinin to be isolated is also known as?

Answer 12

Benzyl amino purine (bap)

Question 13

What synthetic cytokinin was isolated from the sperm of herring fish?

Answer 13

Kinetin/ N⁶ furfuryl amino Purine

Question 14

Abscisic acid is also known as?

Answer 14

Stress hormone

Question 15

What are endocrine cells of pancreas known as?

Answer 15

Islets of langerhans(1-2%)

Question 16

What do Alpha cells release in case of pancreas?

Answer 16

Glucagon

Question 17

What do beta cells release in case of pancreas?

Answer 17

Insulin

Question 18

Target of glucagons?

Answer 18

Hepatocytes

Question 19

Target of insulin?

Answer 19

Hepatocytes are adipocytes

Question 20

Development is sum of which two processes?

Answer 20

Growth and Differentiation

Question 21

What form of growth is visible in plants and why so?

Answer 21

Open form of Growth

Question 22

What all cause secondary growth of plants?

Answer 22

Vascular Cambium, Cork Cambium and lateral meristem

Question 23

What causes primary growth?

Answer 23

Root and Shoot apical meristem

Question 24

Growth at cellular level is a consequence of?

Answer 24

Increase in Protoplasm

Question 25

What parameters are measured while measuring growth?

Answer 25

Fresh Weight, Dry Weight, Length, Area, Volume and Cell Number

Question 26

How many cells can be produced by a single maize cell in an hour?

Answer 26

17,500

Question 27

Watermelon may increase upto (in size)?

Answer 27

3,50,000 times

Question 28

The name Auxin has raised from which word?

Answer 28

Auxein: To Grow (Greek)

Question 29

Origin of Adrenal Medulla?

Answer 29

Ectodermal

Question 30

What are the hormones of adrenal medulla called?

Answer 30

Catecholamines (Epinephrine and Nor Epinephrine)

Question 31

Origin of adrenal cortex is?

Answer 31

Endodermal

Question 32

What is piloerection?

Answer 32

Goosebumps

Question 33

Origin of androgen?

Answer 33

Mesodermal

Question 34

Male sexual behaviour called?

Answer 34

Libido