Photosynthesis.doc - BioLab3 Lab Report 7 Photosynthesis...

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BioLab 3 Lab Report 7 Photosynthesis Student Name: Suresh Thakur Introduction Define the following terms: Photosynthesis The process where plants change light energy to chemical energy. Using light energy to combine water and carbon dioxide to for carbohydrates. Chemosynthesis Carbohydrate energy in plants go toward cellular metabolism. Some algae don’t need light to produce energy, they naturally produce carbon compounds through chemosynthesis. Autotrophs Living organisms capable of self-nourishment by using inorganic material as nutrients. Heterotrophs Living organisms that rely on autotrophs for their nutrition and energy. I. Plant Structure and Function Define the following terms: Guard cells Control the size of the Stomata Stomata Pores on the upper side of the leaf that take in carbon dioxide and oxygen Xylem Tube like cells that carry water and nutrients through the leaf Phloem Tube like cells that carry glucose formed from photosynthesis, to other parts of the plant. EXERCISE 1 – Leaf structure and function Name each of the labeled parts of the plant A Vascular Bundle (xylem/phloem) B Cuticle C Upper epidermis D Palisade mesophyll E Air Space F Spongy mesophyll G Lower epidermis H Stoma/ stomata I Guard cells II. Chloroplast © 2016 Access Learning Systems SP18 1
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a e d b c Define the following terms: Chloroplasts A cell organelle, which has an envelope made of two membranes where other organelles are stored to create photosynthesis. Chloroplast Envelope Is made of two membranes. Stroma A thick fluid inside the Chloroplast envelope that holds a third membrane system called the thylakoids. Hydrogen ions are transported to the stroma from the thylakoid compartment where they combine with carbon dioxide to Form glucose. Grana Stacks of thylakoid. Thylakoid membrane Where protein molecules are organized into photosystems are embedded into. Thylakoid compartment Located inside the grana, thylakoid compartment is where water molecules are split into oxygen and hydrogen ion. EXERCISE 2 – Chloroplast structure 1. Label the chloroplast envelope, stroma, granum, thylakoid membrane, and photosystems. Figure 4 Chloroplast structure a Chloroplast envelope Outer mem d Thylakoid membrane b Chloroplast envelope inner mem. e Photo systems c granum III. Photosynthetic Products © 2016 Access Learning Systems SP18 2
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Define the following terms: Photosynthesis The process by which green plants and some other organisms use sunlight to synthesize foods from carbon dioxide and water.
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