Podcast
Questions and Answers
Which type of plant is specifically adapted to arid environments?
Which type of plant is specifically adapted to arid environments?
- Mesophytes
- Xerophytes (correct)
- Halophytes
- Hydrophytes
What term describes stress that causes a plant to die due to severe unfavorable conditions?
What term describes stress that causes a plant to die due to severe unfavorable conditions?
- Lethal Stress (correct)
- Sublethal Stress
- Acclimation Stress
- Heritable Stress
What level of adaptation involves changes in gene expression in response to stress?
What level of adaptation involves changes in gene expression in response to stress?
- Physiological level
- Ecological level
- Molecular level (correct)
- Behavioral level
Which type of genes can influence multiple traits in plants?
Which type of genes can influence multiple traits in plants?
What are the two interconnected information systems present in plant cells?
What are the two interconnected information systems present in plant cells?
Flashcards
Genetic Adaptation
Genetic Adaptation
Changes in a plant's genes that allow it to better survive stressful conditions.
Physiological Modification (Acclimation)
Physiological Modification (Acclimation)
Non-heritable physiological changes a plant undergoes to survive stressful conditions. These changes are not passed down to offspring.
Hydrophytes
Hydrophytes
Plants that live in or near water and depend on it for survival.
Xerophytes
Xerophytes
Signup and view all the flashcards
Plant Cell Information System
Plant Cell Information System
Signup and view all the flashcards
Study Notes
Plant Stress Responses
- Plant stress can be genetically determined (adaptation) or non-heritable (acclimation), leading to physiological modifications.
Plant Types
- Hydrophytes live in/near water
- Mesophytes are most land-dwelling plants
- Xerophytes grow in dry environments
- Halophytes are adapted to salty habitats
Factors Determining Plant Stress Responses
- Unfavorable conditions can lead to lethal or sublethal stresses
- Certain changes occur in the plant to survive sublethal stress
Plant Adaptation
- Adaptations can occur at the molecular level, by changing gene expression and synthesis of stress proteins
- Or at the biochemical level, leading to physiological responses, affecting the whole plant
Plant Cell Information Systems
- Plant cells possess two systems: genetic and epigenetic systems
Pleiotropic Genes
- Single genes can influence multiple traits
- Many known receptors are embedded in the plasma membrane, cytoplasm, and other cellular compartments
Signal Transduction and Plant Responses
- Signal transduction pathways lead to various plant responses
- This includes processes like Calcium and protein kinase activation.
Studying That Suits You
Use AI to generate personalized quizzes and flashcards to suit your learning preferences.
Description
Explore the various stress responses of plants, including genetic and non-heritable adaptations. Learn about different plant types and their unique adaptations to environmental challenges. This quiz covers cellular mechanisms and pleiotropic genes influencing plant responses.
