11 Ag Science

Question 1

.001, H+, pH 3. T/F?

Answer 1

True - .001
10-3 = pH 3 H+ Ions.

Question 2

Ethylene

Answer 2

Ripening of fruit
Release of Dormancy
Stimulate shoot root growth
Stimulate leaf abscission

Question 3

Cytokinins

Answer 3

Control major growth periods of the plant
Links to ethylene to control abscission flowers, leaves, fruits`

Question 4

Stigma

Answer 4

Female part of plant
Top of pollen receptacle
Leads to ovary

Question 5

Pistil

Answer 5

Female Collective parts of flower

Question 6

Anther/Filament

Answer 6

Pollen Producers

Question 7

Photosynthesis

Answer 7

6 CO2 + 6 H2 O ~> C6 H12 O6 + 6O2

Question 8

Soil Structure

Answer 8

Percentage of Sand, Silt and Clay

Question 9

Nitrogen

Answer 9

Macro - Involved in
Cell function division
Protein synthesis
Photosynthesis
Transfer of energy

Question 10

Epigeal Germination

Answer 10

Cotyledons pushed above soil line provide energy until photosynthesis takes over

Question 11

Heritability

Answer 11

P= G+E
30% Genetics
70% Environment

Question 12

Sperm Morphology

Answer 12

Motility
LDR
Misshapen
Numbers

Question 13

Protein

Answer 13

Crude
NPN

Question 14

‘Trumpeter’

Answer 14

Gonadotrophin release controlled by hypothalamus

Question 15

Name the key player in ruminant protein digestion

Answer 15

The rumen

Question 16

Explain the differences in the anatomy of a monogastric to a ruminant

Answer 16

Monogastrics only have one compartment to their stomach, whereas ruminants have four compartments: rumen, reticulum, omasum, and abomasum.

Question 17

NaHCo3

Answer 17

Sodium bicarbonate

Question 18

What does The “Bomb Calorimeter” measure

Answer 18

The heat released or absorbed during a combustion reaction, expressed in quantities of calories or Joules

Question 19

Calories/Kilojoules

Answer 19

1 calorie = 4.184 Kilojoules
multiply the energy value by 4.184

Question 20

Protein Digestion

Answer 20

When protein is digested it is broken down into peptides ( Short chains of amino acids) Which then becomes NH4+ ( Ammonium cation)and NH3- (Ammonia)

Question 21

Two Types of Protein

Answer 21

Crude and NPN

Question 22

Crude Protein CP

Answer 22

Protein that needs to be broken down to a usable form

Question 23

NPN

Answer 23

Non Protein Nitrogen

Question 24

Rumen Microbes

Answer 24

Major Source of Protein in a bovines diet.
Breaks down CP and NPN to NH4+ and NH3-

Question 25

Roles of Microbes

Answer 25

Break down protein
Continually flushes from the rumen to OMASUM to ABOMASUM