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Exploring the evolutionary journey of plants from algae to complex organisms, this overview delves into plant physiology, hormonal regulation, and adaptations that enabled the transition from aquatic to terrestrial life. It examines the development of vascular systems, the role of plant hormones in growth and response to stimuli, and the intricate anatomy and morphology that define plant life.
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An early eukaryotic cell engulfed a cyanobacterial cell, leading to the formation of chloroplasts
This theory explains the origin of the photosynthetic machinery in plants
The transition from water to land led to the evolution of both nonvascular and vascular plants
These plants do not possess specialized conducting tissues found in vascular plants
These plants developed complex tissues for water and nutrient transport and reproduce through spores
These plants produce spores of different sizes and have evolved into extinct and extant lineages
Plants use sunlight to convert carbon dioxide and water into sugars
This process releases energy by metabolizing sugars
Essential nutrients are transported through specialized tissues in plants
These chemical messengers regulate plant growth and responses to environmental stimuli
Phytochromes serve as light receptors that initiate changes in plant growth in response to light
Plant cells have a nucleus, organelles, and a primary cell wall made of cellulose, hemicellulose, and pectin
These plants have distinct above-ground and below-ground structures for photosynthesis and nutrient absorption
These plants perform photosynthesis throughout their bodies