Photosynthesis and minerals for healthy plant growth

• what is photosynthesis ?

  the process that produces glucose in plants
• is photosynthesis a exothermic or endothermic reaction ?

  endothermic
• what is energy from the sun absorbed by ?

  chlorophyll
• what are the raw materials required for photosynthesis ?

  • carbon dioxide
  • water
• carbon dioxide enters through stomata while water is absorbed by roots and travels in xylem vessels
• other products needed for photosynthesis ?

  • light energy
  • chlorophyll
• products of photosynthesis ?

  glucose and oxygen
• what can the product glucose be used for ?

  • respiration
  • converted into a useful substance
• what can the product oxygen be used for ?

  • respiration
  • released through stomata
• what is the word equation for photosynthesis ?

  Carbon dioxide + water (sunlight, chlorophyll) -> glucose + oxygen
• what is the chemical equation of photosynthesis ?

  6CO2 + 6H2O -> C6H12O6 + 6O2
• what energy stores is photosynthesis ?

  light energy to chemical energy
• label this leaf structure diagram

  A) waxy cuticle

  B) upper epidermis

  C) lower epidermis

  D) xylem and phloem

  E) palisade mesophyll tissue

  F) spongy mesophyll tissue

  G) chloroplasts

  H) stoma

  I) guard cell

  J) air space

  
• what are the adaptations a leaf has for photosynthesis ?

  • large surface area for the diffusion of carbon dioxide and the absorption of light
  • network of veins to ensure the transport of substances between the leaf and the rest of the plant and provide support
  • cells contain chlorophyll to absorb light energy
• what are the adaptations of the waxy cuticle in a leaf ?

  Reduced water loss
• what are the adaptations of the upper epidermis in a leaf ?

  transparent so that light can pass through it to the palisade layer
• where is most of the chloroplasts found in a leaf ?

  palisade layer
• what are the adaptations of the xylem in a leaf ?

  Transportation of water and minerals
• what are the adaptations of the phloem in a leaf ?

  Transportation of sucrose and amino acids
• what are the adaptations of the vascular bundle in a leaf ?

  contains the xylem and phloem to transport substances to and from the leaf
• what are the adaptations of the stomata in a leaf ?

  • where gas exchange occurs
  • where evaporation of water occurs
• what are the adaptations of the guard cells in a leaf ?

  Stomatal opening and closing, allows oxygen in and carbon dioxide out
• what are the adaptations of the lower epidermis in a leaf ?

  contains guard cells and stomata
• what are the adaptations of the spongy mesophyll in a leaf ?

  Increased surface area for gas exchange
• what are the adaptations of the palisade mesophyll in a leaf ?

  cells packed together with chloroplasts to absorb light
• what are the adaptations of the upper epidermis in a leaf ?

  thin and transparent to allow light to enter palisade mesophyll layer under it
• what is a limiting factor ?

  stops photosynthesis from happening any faster
• what are the 3 limiting factors of photosynthesis ?

  • light intensity
  • CO2 concentration
  • temperature
• what do limiting factors depend on ?

  environmental conditions
• what happens if light intensity is increased ?

  rate of photosynthesis will increase steadily up to a certain point
• what does chlorophyll use to perform photosynthesis ?

  light energy
• what happens if co2 concentration is increased ?

  the rate of photosynthesis will increase to a certain point
• since temperature affects the rate of photosynthesis what does it also affect ?

  the enzymes involved
• what happens if the temperature is increased ?

  the rate of photosynthesis increases up to a certain point
• what happens to the enzymes if the temperature is too high (above 45 degrees) ?

  the enzymes will be denatured so the rate of photosynthesis rapidly decreases
• label this experiment as oxygen produced from photosyhtesis

  A) thermometer

  B) boiling tube

  C) oxygen bubbles when photosynthesis occurs

  D) water

  E) inverted funnel

  F) plant

  G) O2 gas

  H) splint relights in oxygen

  
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