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Plants and People
Exam 2
59
Plant Sciences
Undergraduate 2
10/21/2007

Additional Plant Sciences Flashcards

 


 

Cards

Term
What family does the legume belong to?
Definition
The Bean Family
Term
What is the technical name for the "Bean Family"
Definition
Fabacea or Leguminosae
Term
How is a legume fruit formed?
Definition

By a single carpel that splits along the two opposite margins to release its seeds. 

Term
What is a Pulse?
Definition
Dried legume seeds used for human food
Term
Three subfamilies of Fabaceae
Definition
Faboideae, Caesalpinoideae, Mimosoideae
Term

In legumes, does self-pollination result in self-fertilization?

Definition
Yes, self-pollination results in self-fertilization.
Term

How did legumes change when domesticated?

Definition
No dormant seeds, synchronous fruiting, reduction in seed scattering, increase in the size of seeds

Most are annuals

Production of seeds by self-pollination and self-fertilization
Term
What nutrient does protein provide that carbs do not?
Definition
Nitrogen
Term
How do legumes produce useable nitrogen?
Definition
By a symbiotic relationship with bacteria in the soil the legume roots produce excess nitrogen.
Term
What do the terms in a fertilizer coorespond to? 10-20-10?
Definition
Useable nitrogen     Phosphorous     Potassium
Term

What is the latin name for Soybeans?

Definition
Glycine max
Term
Origin of Soybeans
Definition
China, 3000 years ago
Term

Processing of Soybeans

Definition
Seeds crushed in boiling water

Liquid                           Solid
Soymilk                        Soy Sauce
Tofu                             Okara
Term
Hydrogenation
Definition
Hydrogen gas is boiled under pressure through oil in the presence of a catalyst (nickel).

Hydrogen binds to carbon atoms linked by double bonds.

The fatty acids become saturated and the oil is sold at room temperature.
Term
Iodine Number
Definition
The number of double bonds available to bond with iodine. More double bonds, higher iodine number.
Term
Sunflower
Definition
Dicot, domesticated
Term
Temperate fruits
Definition
We consume the pericarp.
Term
Temperate Nuts
Definition
We consume the seeds
Term

All spices can be traced to three places:

Definition
Mediterranean, Asian Tropic, and New World.
Term
Latin name of the mint family
Definition
Lamiceae
Term
Herbs and spices of the Mediterranean (mint family)
Definition
Basil, mint, oregano, rosemary, sage, thyme
Term
Latin name for the Carrot Family
Definition
Apiacea
Term
Horseradish native to:
Definition
Europe
Term
Bay/ Laurel
Definition
Mediterranean
Leaves used
Leaves used to crown champion in ancient Greece
Term
Saffron Latin Name
Definition
Crocus sativus
Term
Saffron (Crocus sativus)
Definition
Native to weastern Asia, southern Europe
Stigmas used
Very expensive because hand harvested
Used for yellow dye
Term
Cassia
Definition
Native to Asia
Entire bark used (surrounds trunk)
Cinnamon
Term
Cinnamon
Definition

Native to Sri Lanka, Sumatra, Borneo

Inner layer of bark used.

Term
Myristica Fragans
Definition
Native to indonesia
Nutmeg - Seed endosperm
Mace - Seed covering
Term
Cloves
Definition
Native to east Indies
Flower buds used
Used as a spice and in idonesian cigarettes and lotion (for scent)
Term
Ginger
Definition
Southern Asia
Rhizomes (modified stems) used as food
Term
Black Pepper
Definition
Most common spice (salt is not a spice)
Native to India, East Indies, Sumatra, Sri Lanka
Fruit used (berry)
Outside layer of fruit is black, inside is white
Black pepper - entire fruit is ground
White pepper - outside black layer is removed by rotting, then white parts ground
Term
Allspice
Definition
South America, West Indies
Fruits used
Term
Capsicum peppers (hot peppers)
Definition
Central America, South America
Fruits and seeds used
CAPSACIN - chemical that makes peppers hot, binds to nerve endings
Hottest part is seeds
Term
Vanilla
Definition
Central and South America
Fruits used
Second most expensive
Fermentation - kept for long timeand plant develops smell and taste
Term
Curry Poweder
Definition
India
Mixture of Coriander, Tumeric, Cumin, Funegreek, White Pepper Allspice, Mustard, Red Pepper, Ginger
Term
Chili Powder
Definition
American Southwest
Red Pepper, Cumin, Oregano, Salt, Garlic Powder
Term
Hydrogels
Definition
Water-modifying substances (prevent water molecules from moving freely)
Term
Types of Hydrogels:
Definition
Plant products

Gums
Pectins
Starches


Not plant product

Gelatin - comes from animals
Term

Chemical Structure of gumes:

Definition
salts of polysaccharides such as galactose, xylose, and arabinose.
Term

Exudate Gums

Definition
Produced as a response to injury or wounding
Term
Acacia Sengal Plant
Definition
Exudate Gum

Bean Fmaily
Source of gum Arabic
Native to northeastern Africa
Uses: beer additives, glue, emulsifier, coating of flavor particles, a component of water color, ink
Term
Astragalus Gummifer
Definition

Exudate Gum

Source of Tragacanth Gum
Native to near east and Asia minor (Turkey)
Uses: food - mayo, sandwich spread, prepared milkshakes, toothpaste, hand lotions
Medicine - binder of tablets, suspension agent in oral penicillin


Term
Extractive Gums
Definition
Extracted from endosperm of seeds or wood
Term
Carob Tree
Definition
Bean Family

Extractive Gum

Native to Afric

Seeds are used for ice cream, pie fillings, salad dressing
Term
Cyamopsis Tetragonolobus
Definition
Extractive Gum

Source of Guar Gum

Bean Family

Native to Africa and domesticated in India

Used: seeds for paper and textile industries
Term
Larix Occidentalis
Definition
Source of Larch Gum

Extractive Gum

Native to N. America

Used part: wood for lithographic operations
Term
Semi Synthetic GUm
Definition
Purified Cellulose (a polymer of glucose) is chemically changed into carboxymethylcellulose

Used for: detergents, sizing in the textile and paper industries.
Term

Pectins

Definition
A group of plant polysaccharides that can form a gel
Term
Chemical structure of pectins
Definition
Unbranched chains of 200-1000 pectic acid molecules or thier methylesters
Term
Sources of pectins
Definition
Apple pomace  - 10-15% by dry weight is pectin

Citrus - 20-30%
Term

Chemical Structure of Starch

Definition
Linear (amylose) or Unbranched (amyl pectin) polymer

Subunit is glucose

Differs from cellulose in the way the chemicals (subunits are connected)

Sourches: corn, wheat, sorghum, arrowroot, cassava, sago

Uses: paper and cardboard production (60%), adhesives, food industry - thickiner
Term
Sheep
Definition
9000 BC
Asia
Meat, milk, wool
Grazing
Term
Goats
Definition
7500 BC
Asia
Term
Cattle
Definition
Europe, Asia, N.America 6500BC
Term
Pigs
Definition
Europe, Asia, N. America
Term
Water Buffalo
Definition
Asia
Term
Chickens
Definition
Asia
Term
Horses
Definition
Europe, Asia
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