bio 1406 ch. 8 sapling
Photosynthesis reactants
- 6 CO2 - 6 H2O Energy source: - light
Photosynthesis products
- C6H12O6 - 6 O2 Energy source: light
heterotrophs
- obtain their food by consuming other organisms - rely on other organisms for energy - consumers - unable to produce organic compounds from inorganic materials
autotrophs
- producers - many use photosynthesis to produce organic compounds - use inorganic materials to produce energy - make their own food
Plants synthesize their own food in the form of sugars during the process of photosynthesis. Which of the following statements describe photosynthesis?
- produces sugars for the plant using only the energy from the sunlight - is a cellular process that occurs in the chloroplasts of plant cells - converts carbon dioxide sugars, releasing oxygen
Why do most plant leaves appear green?
-Chlorophyll pigments in plant cells reflect green wavelengths of light.
Which statements describe characteristics of stomata in plants?
-are pores enclosed by guard cells that are located on plant surfaces -permit carbon dioxide to enter and oxygen to escape from a plant
Which of the products of photosynthesis are used for cellular respiration?
carbohydrates & oxygen
A.) Label the components of a chloroplast. B.) Select the component of choloroplast that is the site of light-dependent reactions.
double membrane, thylakoid, granum, stroma thylakoids
substances in cellular respiration only:
mitochondria
substances in both photosynthesis and cellular respiration:
oxygen & electron transport chain
Some molecules that leave the chloroplasts at the end of photosynthesis will be used in cellular respiration. Which molecules are these?
sugars & oxygen
substances in photosynthesis only:
sunlight & chloroplasts
