Introduction to Agriculture: Definitions and Branches
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Questions and Answers

Crop production is the art and science of producing plants which are useful to man either directly or indirectly, raw or ______, aimed at increasing productivity and quality of the products.

processed

Animal production or ______ is the art and science of producing animals to meet humans needs and luxury.

Animal husbandry

Agronomy is an early 19th century word from the French words agronomie or agronome meaning '______'.

agriculturist

The words agronomie or agronome also originated from the greek words agros meaning 'field', and ______ meaning 'arranging', which was also derived from the greek word nemoein meaning 'arrange'.

<p>nomos</p> Signup and view all the answers

Match the plant cell organelles with their functions:

<p>Cell Wall = Provides cell support and regulation Plasma Membrane = Cell boundary; selectively permeable barrier Nucleus = Contains genetic materials for heredity Mitochondrion = Powerhouse of the cell; site of cellular respiration</p> Signup and view all the answers

Match the components of the plant cell wall with their descriptions:

<p>Middle Lamella = Outermost layer; binds adjacent cells Primary Wall = Deposited during active growth; comprised of pectic polysaccharides and cellulose Secondary Wall = Additional layers deposited after growth stops; mainly for support, composed of cellulose and lignin Cellulose = Component found primarily in the secondary wall for strength</p> Signup and view all the answers

Match the plant cell organelles with their primary functions:

<p>Cytosol/Cytoplasm = Gel-like matrix where other structures are embedded Ribosomes = Sites of protein synthesis (translation) Plasma Membrane = Separates organelles and cell parts; bilayer of phospholipids with inserted protein Mitochondrion = Site of cellular respiration and ATP release</p> Signup and view all the answers

Match the plant cell wall components with their composition:

<p>Pectic Polysaccharides = Found in both primary wall and middle lamella Cross-linking Glycans/Hemicellulose = Component of the primary wall along with pectic polysaccharides Lignin = Mainly found in the secondary wall for support Protein = Component present in the primary wall along with cellulose</p> Signup and view all the answers

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