Plant adaptations to light

Slides:

Advertisements

Similar presentations

Aims of the session: Take measurements of leaves + see if xerophytes have a different pattern of mass loss Learn about the adaptations xerophytes have.

Advertisements

B4 a-d Pig (H).  What is the job of air spaces?

Structural Adaptations to the Environment TAKS. Structural adaptations to the environment Every species is uniquely adapted to its environment This ensures.

Exam Objective Describe with the aid of diagrams and photographs, how the leaves of some xerophytes are adapted to reduce water loss by transpiration.

Question 1 To which animal phyla do the organisms with round bodies marked externally into rings or segments belong?  Porifera  Annelida  Coelenterata.

Xerophytes & Transpiration Factors

Transpiration. Is the process in which the plant losses water vapor.

Exchange and Transport

Biology 633 Environmental Plant Physiology Tropical rainforest Alpine tundra Desert Study of how the environment affects the function.

LO: SWBAT explain how plants are adapted to carry out photosynthesis DN: Write the equation for photosynthesis. Identify the raw materials and end products.

Transpiration. Plant Structure Terms: Epidermis – Skin or layer on the outside. Vascular Tissue – components required to help transport nutrients and.

Xerophytes and Hydrophytes

Plant Adaptations-II Plant Adaptations-II What does Adaptation mean? The special characteristics that enable plants and animals to be successful in a particular.

Topic 13 Plant Science.

By Will Bashford,Gabe Rupe, and Daniel Rogers.  The temperature is annually degrees Celsius. The temperature range during the year reaches as.

Lara Matic. Adaptations of the plants in the environment For plants to survive they have adaptations. These adaptations let the plant live in particular.

What are the differences between these two?. What are the similarities between these two?

Environmental Controls on Life Light Temperature Moisture Picea glauca & 10°C July isotherm.

HALOPHYTES, XEROPHYTES, HYDROPHYTES, MESOPHYTES

V.C.E. Biology Unit 2 Environmental factors and adaptations.

Abiotic and Biotic Factors. What are Abiotic and Biotic factors? Abiotic factors are non-living factors (environmental) which affect the survival of living.

Adaptations for Survival L1: Plant Adaptations Learning Objectives: 1.Recall environmental factors that plants require to survive. 2.Describe plant adaptations.

BIO2202 Plant Physiology 1 Stress Physiology - Lecture 1

Chapter 3 January 17th.

Plant Processes. Photosynthesis: most important process in the world Plants produce food Plants produce food used directly by man Plants produce food.

Transport in Plants or Why do they need so much durn water?

Adaptations to arid environments

Water movement in plants.

Variation and adaptation Objectives Know what is variation? Understand why it is significant? Explain how variation arise? Understand that variation leads.

one of the most important environmental limiting factors for plants

Photosynthesis & Respiration

Parts of a Plant (Plant Vocabulary)

Nutrition Autotroph Obtaining and processing food to a usable form

Photosynthesis.

Plant Tissues and Organs

KEY CONCEPT Plants have specialized cells and tissue systems.

Ecology is These interactions are two-way: organisms are affected by their environment, and by their presence and activities, change their environment.

Transpiration & Translocation

Leaves Take it or leaf it!.

Photosynthesis.

Plant adaptations to climate

9.1 Transport in the xylem of plants

Above Ground Environment

Autotrophic Nutrition

PLANT ADAPTATION Adaptations

Plant Adaptations Plants can survive in many extreme environments.

Structure – Leaves stem roots

Chapter 29 Part 3.

Biology 633 Environmental Plant Physiology

Photosynthesis.

C3, C4, and CAM plants all have the same goal,

KEY CONCEPT Leaves absorb light and carry out photosynthesis.

PLANT NUTRITION AND TRANSPORT

KEY CONCEPT Leaves absorb light and carry out photosynthesis.

Photosynthesis.

Ch. 25: Plant Responses & Adaptations

KEY CONCEPT Leaves absorb light and carry out photosynthesis.

IB Biology Unit 8 Plant Biology

Vascular Plants.

KEY CONCEPT Leaves absorb light and carry out photosynthesis.

Aims of the session: Take measurements of leaves + see if xerophytes have a different pattern of mass loss Learn about the adaptations xerophytes have.

When the soil is dry or salty and the air has

Settler Describe the pathways and mechanisms by which water passes from the soil to the xylem vessels in the root. [6]

HALOPHYTES, XEROPHYTES, HYDROPHYTES, MESOPHYTES

Vascular Tissue.

KEY CONCEPT Leaves absorb light and carry out photosynthesis.

Presentation transcript:

Plant adaptations to light Figure 6.6 (EFB)

Figure 6.7 (EFB)

creosote arum Sun Plants more Rubisco less chlorophyll small leaves Shade plants less Rubisco more chlorophyll large leaves creosote arum

A reduction in light intensity due to absorption, reflection, etc. Light Attenuation A reduction in light intensity due to absorption, reflection, etc. Figure 3.3 (EFB)

Light attenuation occurs in aquatic environments as well

Temperature affects leave shape and size Figure 6.11

In response to high temperatures, and to limit water loss, plant morphology can vary in having: serrated or lobed leaves small hair-like structures waxy cuticles small leaves no leaves

Plants may also be able to acclimitize to seasonal shifts in temperature -- reversible physiological changes to cope with changes in local environment -- acclimate = change induced in laboratory -- acclimitize = change under natural conditions

Abcisic acid (ABA) produced to increase cell membrane permeability Response to photoperiod Response to first frosts

Adaptations to water stress Tap root in phreatophyte Spreading root system at surface

Nutrient limitations and carnivorous plants Pitcher Plants 4 spp. in our area

Venus flytrap: endemic species to Southeast

Adaptations to limitations in gases: CO2 and O2 Hydrophyte with lacunae

Plant categories based on adaptations: Xerophytes: desert plants Mesophytes: temperate plants Halophytes: salty soils Hydrophytes: aquatic environments