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Cell Processes
7-4 Ch.8.2 Photosynthesis and Cell Respiration; and 16.2 Leaf Structure/function
| Question | Answer |
|---|---|
| a waxy covering on the upper surface of most leaves that protects from injury and water loss | cuticle |
| an opening between two guard cells | stoma |
| multiple openings (the plural for stoma) | stomata |
| a pair of sausage/oval shaped cells on lower surface of most leaves that control formation of stomata | guard cells |
| the process by which water passes out of the stomata of a leaf and into the environment | transpiration |
| process by which chlorophyll containing cells (chloroplasts) trap and use energy from the sun to combine carbon dioxide and water into glucose for food, releasing oxygen as a waste product | photosynthesis |
| food produced through photosynthesis, stored in the plant cells until needed | glucose |
| tightly packed cells under the upper epidermis that contains lots of chloroplasts for photosyhnthesis | palisade cells |
| loose area of mesophyll providing room for water, oxygen and carbon dioxide to travel within the leaf | spongy layer |
| What are the ingredients for photosynthesis? | energy from sunlight, water from roots, carbon dioxide from air (and chloroplasts in leaf cells) |
| What is formed during photosynthesis? | glucose and oxygen |
| What comes in stomata? | carbon dioxide |
| What goes out stomata? | water and oxygen |
| How does a stoma open? | If the leaf has too much water, water will enter the guard cells causing the to swell and buckle. The opening formed is the stoma. |
| How does a stoma close? | As excess water is released out the stoma, the guard cells start to lose water and unswell. The gradually closes the stoma. |
| veins that carry water through a plant | xylem |
| veins that carry glucose (food) through a plant | phloem |
| An indicator used to detect the presence of carbon dioxide | Bromthymol blue (BTB) |
| A series of reactions in which glucose is "burned" with oxygen to release ENERGY to be stored for life activities | cellular respiration |
| What are the reactants (ingredients) of cellular respiration? | oxygen and glucose |
| What are the products of cellular respiration? | energy, carbon dioxide and water |
| Where is your body does respiration occur? | In the mitochondria of all cells. |
| How does ventilation (breathing) relate to cellular respiration? | Inhalation delivers oxygen to the body, which can be used for respiration. The waste carbon dioxide produced by the body during respiration is expelled during exhalation. |
| What color is bromthymol blue without carbon dioxide? | blue |
| What color is bromthymol blue with carbon dioxide? | yellow-green |
| a molecule that absorbs some colors of light and reflects others | pigment |
| the common pigment in plants | chlorophyll |
| what colors of light does chlorophyll absorb | mostly red and blue, since green is reflected |
| what is ATP? | a small molecule produced by cellular respiration that acts as energy currency for the cell |
Created by:
doakes27
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