Hydrothermal Vent Bacteria that live near hydrothermal vents.

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Presentation transcript:

Hydrothermal Vent

Bacteria that live near hydrothermal vents

Tubeworm that lives near the hydrothermal vent Tubeworm with a symbiotic relationship with bacteria

Nutrition! What is nutrition?? How organisms obtain and process food! Life function!

What is nutrition needed for? 1. energy 2. growth 3. repair 4. regulation

Two types of nutrition! Autotrophic nutrition- When an organism can manufacture organic compounds from inorganic raw materials. AUTOTROPH=ORGANISM THAT CAN MAKE IT’S OWN FOOD. EX. PLANTS, ALGAE

Continue… Heterotrophic nutrition – the organism that cannot make organic compounds from inorganic raw materials HETEROTROPHS = organisms that can NOT make their own food.

Nutrition in Plants! How do plants get their nutrition??? PHOTOSYNTHESIS!!!! What is that??? This is the process plants use in order to make their own food!!! Therefore, they are autotrophs!!

What do plants need for photosynthesis? Plants need: Sunlight Water Carbon dioxide Photosynthesis is the process by which the energy of light is converted to the chemical bond energy of organic compounds

Basic Photosynthesis! Are all the raw materials present?

Photosynthesis occurs in two parts! 1. Light reaction (photochemical rxn.) Occurs in the grana of the chloroplast 2. Dark Reaction (carbon fixation) Occurs in the stroma of the chloroplast

Do you recognize the process? What is given off? What is made?

This is a chloroplast Can you recognize any of the parts? Can you locate the stroma and grana?

Another view of Photosynthesis Does the dark reaction require the direct sunlight?

General formula for Photosynthesis 6CO 2 + 6H 2 O  C 6 H 12 O 6 + 6O 2

Can you explain what is happening? Do you see the two reactions?

Continue… Vascular Plants - although some photosynthesis occurs in the stems of vascular plants, the organs most highly adapted for this process are the LEAVES cuticle (waxy layer)chloroplasts upper epidermisxylem stomatesphloem guard cells fibrovascular bundle pallisade layer spongy layer lower epidermis

The Leaf

What is this? Guess?

This is what a leaf looks like under the microscope Can you identify the parts?

Can you identify all the parts of the leaf? ??

Another Hydrothermal vent!! !