By the end of this section, you will be able to do the following:
Describe how red and blue light affect plant growth and metabolic activities
Discuss gravitropism
Understand how hormones affect plant growth and development
Describe thigmotropism, thigmonastism, and thigmogenesis
Explain how plants defend themselves from predators and respond to wounds
By the end of this section, you will be able to do the following:
Identify the two types of root systems
Describe the three zones of the root tip and summarize the role of each zone in root growth
Describe the structure of the root
List and describe examples of modified roots
By the end of this section, you will be able to do the following:
Describe the main function and basic structure of stems
Compare and contrast the roles of dermal tissue, vascular tissue, and ground tissue
Distinguish between primary growth and secondary growth in stems
Summarize the origin of annual rings
List and describe examples of modified stems
By the end of this section, you will be able to do the following:
Describe the shoot organ system and the root organ system
Distinguish between meristematic tissue and permanent tissue
Identify and describe the three regions where plant growth occurs
Summarize the roles of dermal tissue, vascular tissue, and ground tissue
Compare simple plant tissue with complex plant tissue
By the end of this section, you will be able to do the following:
Define water potential and explain how it is influenced by solutes, pressure, gravity, and the matric potential
Describe how water potential, evapotranspiration, and stomatal regulation influence how water is transported in plants
Explain how photosynthates are transported in plants
See how plants make the world better (and the career lab a little bit happier) as you learn about rewarding careers in plant science.
Paul Andersen explains how pigments can be separated using chromatography. He shows how you can calculate the Rf value for each pigment. He then explains how you can measure the rate of photosynthesis using leaf chads and water containing baking soda. [5:42]
Learn about the different kinds of breads people eat around the world. Includes audio narration.
Submitted as part of the California Learning Resource Network (CLRN) Phase 3 Digital Textbook Initiative (CA DTI3), CK-12 Foundation’s high school Biology FlexBook covers cell biology, genetics, evolution, ecology, botany, zoology, and physiology. This digital textbook was reviewed for its alignment with California content standards.
CK-12’s Life Science delivers a full course of study in the life sciences for the middle school student, relating an understanding of the history, disciplines, tools, and modern techniques of science to the exploration of cell biology, molecular biology, genetics, evolution, prokaryotes, protists,fungi, plants, animals, invertebrates, vertebrates, human biology, and ecology. This digital textbook was reviewed for its alignment with California content standards.
CK-12’s Life Science delivers a full course of study in the life sciences for the middle school student, relating an understanding of the history, disciplines, tools, and modern techniques of science to the exploration of cell biology, genetics, evolution, prokaryotes, protists, fungi, plants, the animal kingdom, the human body, and ecology. This digital textbook was reviewed for its alignment with California content standards.
Dr. Peter Fritsch, Curator, Department of Botany at the California Academy of Sciences, describes how over the period of 10 years he and colleagues discovered the first carnivorous plant species known to trap and digest worms underground using adhesive leaves.
Nikki is learning about plant seed dispersal methods. Join in and learn how this is important to plant reproduction.
Meet an environmental researcher who discovered as a young child his interest in the environment and now works to improve natural ecosystems in southeastern Ohio.
Look inside the business of farming with a real farmer who explains how he started with a 10-acre field and helped build a large family farm enterprise. Hear the importance of business skills and a college degree for success in a farming career.
Hear from a forest services manager who leads projects for forest health and sustainability about the importance of learning math, science, writing and communication. Learn about the many careers available in the area of natural sciences.
In this video adapted from Texas Parks and Wildlife Department, students will learn about carnivorous plants that act as both producers and consumers in an ecosystem. Students will then see sundews and blatterworts capture and digest insects. [2:01]
In this video adapted from Texas Parks and Wildlife Department, learn about carnivorous plants that act as both producers and consumers in an ecosystem. See sundews and blatterworts capture and digest insects.
The heart-breaking addendum to the Chernoybl accident is that thousands of children were and are still affected by the fallout. Here are the results of an international organization that strives to help these children.
In this interactive lesson supporting literacy skills, students watch video dramatizations that tell the story of the Spanish explorers who arrived in the Americas with Columbus and introduced European, African, and Asian plants and animals to the Western Hemisphere.