Agricultural Innovations and Plant Biology Quiz
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Questions and Answers

What agricultural invention, developed in the early 1800s, was designed to improve farming efficiency by replacing wooden parts with iron and steel?

  • McCormick Reaper
  • Horse drawn corn planter
  • Carey plow (correct)
  • Gang plow
  • By what year could a modern combine harvest up to 20 acres in an hour?

  • Today (correct)
  • 1914
  • 1990
  • 1950
  • What major agricultural development occurred in the 1960s, aimed at increasing crop yields?

  • Confinement raising
  • Morrill land grant college act
  • Biotech
  • Green revolution (correct)
  • What is the primary role of the mitochondria in plant cells?

    <p>Generate energy</p> Signup and view all the answers

    Which invention allowed farmers to efficiently harvest larger areas of crops, achieving up to 25 acres a day?

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

    What is the primary function of root hairs in plants?

    <p>Absorb water and nutrients</p> Signup and view all the answers

    Which structure within a leaf is responsible for gas exchange?

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

    What does the term 'vasculature' refer to in plants?

    <p>The combined system of xylem and phloem</p> Signup and view all the answers

    What role does the ovary play in a flower?

    <p>It develops into fruit from fertilized ovules.</p> Signup and view all the answers

    Which part of a flower is responsible for producing pollen?

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

    What is a primary function of the stems in plants?

    <p>Transport of nutrients</p> Signup and view all the answers

    What distinguishes a 'perfect flower' from other types of flowers?

    <p>It contains both male and female reproductive structures.</p> Signup and view all the answers

    Which structure in the root is primarily associated with constant cell division?

    <p>Apical meristem</p> Signup and view all the answers

    In which part of the leaf does most photosynthesis take place?

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

    Which component surrounds the entire leaf and helps prevent water loss?

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

    What symptom is associated with nitrogen deficiency in plants?

    <p>Yellowing of leaves</p> Signup and view all the answers

    Which nutrient is primarily responsible for photosynthesis?

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

    What is the main role of potassium in plant health?

    <p>Water regulation</p> Signup and view all the answers

    Which of the following methods can be used to determine nutrient deficiencies in plants?

    <p>Visual examination and chemical analysis</p> Signup and view all the answers

    What is fertigation?

    <p>Applying fertilizer with irrigation water</p> Signup and view all the answers

    Which of the following statements about nutrient loss is incorrect?

    <p>Air does not contribute to nutrient loss in soil.</p> Signup and view all the answers

    What does active transport in nutrient absorption require?

    <p>Energy expenditure by the plant</p> Signup and view all the answers

    What does a starter application of fertilizer mean?

    <p>Fertilizer is applied at the time of planting.</p> Signup and view all the answers

    What is the primary purpose of hydroponics?

    <p>To grow plants in water with added nutrients</p> Signup and view all the answers

    Which soil horizon is primarily composed of organic material?

    <p>O Horizon</p> Signup and view all the answers

    What type of weathering involves the chemical alteration of minerals within rocks?

    <p>Chemical weathering</p> Signup and view all the answers

    Which soil type has the highest capacity to retain nutrients and water?

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

    What is the ideal pH range for the majority of crop growth?

    <p>4.8-6.5</p> Signup and view all the answers

    What is the result of Mendel's Second Law of Independent Assortment?

    <p>Traits controlled by different alleles segregate independently</p> Signup and view all the answers

    Which process produces genetically identical daughter cells?

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

    What technology uses a gene gun for genetic modification?

    <p>Transgenic plants creation</p> Signup and view all the answers

    Which of the following is NOT a goal of biotechnology in agriculture?

    <p>Increase water retention in soil</p> Signup and view all the answers

    Which type of trait is easily observable and usually controlled by one or a few genes?

    <p>Qualitative traits</p> Signup and view all the answers

    What is the main purpose of traditional plant breeding?

    <p>Achieving a combination of beneficial genes</p> Signup and view all the answers

    What process translates RNA into a protein?

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

    What defines a hybrid in the context of plant genetics?

    <p>A cross between two parents with different traits</p> Signup and view all the answers

    What percentage of US corn production is genetically modified?

    <p>92%</p> Signup and view all the answers

    Which type of corn is primarily used for livestock feed and the production of ethanol?

    <p>Dent corn</p> Signup and view all the answers

    What is the outer covering of a corn kernel called?

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

    Which soybean product serves as a major protein source for animals?

    <p>Soybean meal</p> Signup and view all the answers

    In which stage of kernel development does the kernel begin to take on a dough-like consistency?

    <p>Dough stage</p> Signup and view all the answers

    What is the primary use of Virginia peanuts?

    <p>Roasted peanuts</p> Signup and view all the answers

    What process involves spraying cotton leaves to cause them to fall off before harvesting?

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

    Which cereal grain produced in the US is primarily used to make flour?

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

    What type of sorghum is mainly used for producing syrup?

    <p>Sweet sorghum</p> Signup and view all the answers

    Which cotton product is primarily used for making fabrics?

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

    What is the primary characteristic of hard red winter wheat?

    <p>High protein content</p> Signup and view all the answers

    Which type of corn is sweeter and typically consumed by humans?

    <p>Sweet corn</p> Signup and view all the answers

    Which type of peanut is commonly used for peanut butter production?

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

    What is the primary use of durum wheat?

    <p>Pasta production</p> Signup and view all the answers

    Which part of the wheat seed is used to make white flour?

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

    What characterizes enriched flour?

    <p>Nutrients are added that were originally in the germ</p> Signup and view all the answers

    Which vegetable is commonly processed by canning?

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

    What is a common way to harvest almonds?

    <p>With tree shakers</p> Signup and view all the answers

    What is the definition of a fruit?

    <p>Ripened ovary of a seed plant</p> Signup and view all the answers

    Which vegetable is grown using the forcing method?

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

    What is a characteristic of organic fertilizers compared to synthetic fertilizers?

    <p>Contains micronutrients</p> Signup and view all the answers

    What is the primary benefit of mulching in gardening?

    <p>Helps in weed control</p> Signup and view all the answers

    Which harvesting method is commonly used for oranges?

    <p>By hand</p> Signup and view all the answers

    Pecans are self-sterile, which means they require what for pollination?

    <p>Other pecan trees</p> Signup and view all the answers

    Which process is primarily used for preserving vegetables through acidity?

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

    In organic production, what approach is taken to manage pests?

    <p>Implementing a natural balance</p> Signup and view all the answers

    Which of these vegetables is considered a niche market crop?

    <p>Organic herbs</p> Signup and view all the answers

    Study Notes

    Agriculture Introduction

    • Agriculture is the process of cultivating soil, producing crops, and raising livestock to prepare products for human use.
    • Raw materials like clothing, medicines, and shelter are also produced.

    Branches of Agriculture

    • Crop production: Farming of crops.
    • Animal husbandry: Raising livestock.
    • Agroforestry: Combining trees and crops.
    • Agritech and innovation: Use of technology in agriculture.

    Population Growth and Agriculture

    • Increasing population requires more efficient agriculture.
    • Household spending on food increased in 2022.
    • Decreasing farm income is a key issue.

    Importance of Agriculture

    • Farms sell agricultural products valued at $1,000.
    • Farm labor is intensive and dangerous.
    • Lifestyle, job satisfaction, and family tradition motivate many into farming.
    • Farming is an important sector of the economy, and a significant exporter.
    • Consumer demand is a high driving factor in the agricultural sector

    Agricultural Processes and Products

    • Processing: Transforming agricultural products to meet consumer needs.
    • Packaging and retail trade: Reaching consumers.
    • Food services: Providing and preparing food to the public.
    • Energy: Energy usage in agricultural production.
    • Finance/Insurance: Financial components involved in farm operations.
    • Advertising: The promotion of various agricultural products.
    • Agribusiness: Companies involved in production, processing, and marketing of farm products.
    • Government: 52% of US land is involved in agriculture. Laws and regulations govern agricultural practices.

    Agricultural History

    • Paleolithic and Mesolithic periods: Hunter-gatherers, use of stone tools, and the beginning of survival.
    • Neolithic Period: The dawn of agriculture and the domestication of crops and animals.
    • Mesopotamia: Beginning of agriculture in this region and a major hub of agriculture.
    • Americas: Natives in North America and the domestication and cultivation of crops.
    • Colonies: The first agricultural efforts in the colonies, with tobacco being the primary crop.
    • Jamestown: Early efforts in agricultural production in the Jamestown colonies, which eventually led to success.
    • Modern developments: Improvements in farming methods like plows and reapers, alongside the emergence of significant crops (e.g., corn) and their use in production. Advanced technology like combines have dramatically increased productivity.

    Plant Morphology

    • Plant Cells: Eukaryotic cells with organelles and a nucleus membrane, the fundamental units of plants.
    • Plant Tissues: Form plants from simple cells and include structures/components in plants.
    • Roots, Stem, Leaves: Essential structures for performing specific functions in the plant.
    • Flowers, Seeds, Fruit: Reproductive structures involved in the process of producing offspring and disseminating the seeds.

    Plant Physiology

    • Photosynthesis: The process of converting sunlight into chemical energy in plants, with inputs of CO2, sunlight, and water, and outputs of oxygen and sugars.
    • Photosynthesis products/outcomes: This includes glucose, which is an essential sugar for plant growth and development. Chemical energy is the product created.

    Plant Genetics

    • Phenotype: Observable characteristics of a plant, influenced by both genotype and environment.
    • Genotype: The genetic composition of a plant, responsible for a variety of specific traits.
    • Genes: Basic unit of heredity, containing DNA sequences that dictate traits.
    • Alleles: Alternate forms of a gene.

    Animal Genetics

    • Non-additive: Characteristics of multiple genes and interacting between them.
    • Additive: Expression of a trait is determined by the additive effect of multiple genes
    • Sex-linked: Traits controlled by alleles on the sex chromosomes.
    • Sex-limited: Traits expressed in one sex but not the other.
    • Sex-influenced: Traits expressed differently in males and females.

    Animal Breeding and Reproduction

    • Artificial Insemination: A method of introducing sperm into a female.
    • Embryo Transfer: Transferring embryos from a donor female to a recipient female with more predictable outcomes.
    • In Vitro Fertilization (IVF): Fertilizing eggs outside the female.

    Farm Animal Management

    • Domestication: Adapting animals to live in close proximity to humans.
    • Breed selection: Selecting specific traits or breeds for various needs and applications.
    • Maintaining health: Keeping animals healthy through sanitation, diet, and vaccination.
    • Breeding techniques: Promoting breeding to increase productivity in livestock, including the use of artificial techniques.
    • Care and handling of Animals: Proper handling of livestock for the benefit of the animals and farmers/producers.

    Animal Nutrition

    • Dietary requirements: Vitamins, amino acids, minerals, and water essential for animal health and productivity.
    • Feedstuffs: Types of feed, including grains, roughages, and protein supplements.
    • Balanced rations: Nutritional diets that meet animal needs.

    Soil Formation

    • Soil formation is a natural process of decomposition of rocks, resulting in different components.
    • Soil components consist of minerals and organic matter.
    • Soil horizons comprise the A, B, and O horizons of the soil profile.

    Soil and Environment

    • How soil contributes to plants growing and the overall function of soil, and considerations of nutrients, composition, and properties.
    • Types of soil and their role in a variety of production functions.

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    Intro to Ag Sci Notes PDF

    Description

    Test your knowledge on significant agricultural inventions and plant biology! This quiz covers historical agricultural advancements and the structure and functions of various plant parts. Engage with questions that explore the efficiency of farming tools and the essential roles of plant cell components.

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