The reactants needed for photosynthesis to occur are:
sc-5 sb-5-Leaf Structureimg_no 478.jpg
  • carbon dioxide & water
  • carbon dioxide & oxygen
  • oxygen & water
  • carbon dioxide, oxygen & water
The role of the guard cell is to
  • help control the temperature of the plant
  • control how much water enters the leaf
  • control how much glucose is stored
  • control the movement of water vapour & gases 
Plants need to take in oxygen gas for respiration
  • only at night 
  • only during the day
  • both during the day & the night
Transpiration helps the plant
  • make more sugars at night
  • move water from the roots to the stem and leaves
  • move sugars from the leaf to be stored in the stem & roots
  • make more chloroplasts
Water & soluble nutrients move through the plant in 
  • the phloem cells
  • the xylem cells
  • the root hair cells
  • palisade mesophyll layer
Sugar and the products of photosynthesis move through the plant in 
  • the phloem cells
  • the xylem cells
  • the root hair cells
  • palisade mesophyll layer
The leaf has a shiny, waxy cuticle around it to
  • increase the rate of photosynthesis
  • attract more light
  • control water loss
  • stop carbon dioxide and oxygen gases escaping
Most of the chloroplast cells are found in the
  • upper epidermis
  • pallisade mesophyll layer
  • lower epidermis
  • stomata
The water needed for photosynthesis comes into the leaves through the
  • upper epidermis
  • stomata
  • guard cells
  • xylem cells
The important gases, carbon dioxide and oxygen, enter and leave the leaf through the
  • upper epidermis
  • phloem
  • stomata
  • guard cells
The reactants needed for photosynthesis to occur are:
sc-5 sb-6-Leaf Structureimg_no 74.jpg
  • carbon dioxide & water
  • carbon dioxide & oxygen
  • oxygen & water
  • carbon dioxide, oxygen & water
Which structures open and close stomata to allow gas exchange but prevent water loss in leaves?
  • Epidermis
  • Vascular tissue
  • Guard cells
  • Spongy mesophyll
Plants make food through photosynthesis
  • True
  • False
Using their __________, plants combine sunlight, carbon dioxide and water to make glucose and oxygen
  • Flowers
  • Leaves
  • Stem
  • Roots
There are little pores on the bottom of the leaf called ________
  • stem
  • root
  • stomata
  • palisade mesophyll
'___________' comes into the plant through the roots
  • Oxygen
  • Water
  • Carbon Dioxide
  • Goku
What is the function of the leaf on the plant?
  • Absorbs water
  • Absorbs Nutrients
  • Photosynthesis
  • Anchors the plant
Number 3 is...
sc-10 sb-9-Leaf Structureimg_no 327.jpg
  • Node
  • Internode
  • Petiole
  • Axillary Bud
Number 5 is...
sc-10 sb-9-Leaf Structureimg_no 328.jpg
  • Blade
  • Margin
  • Midrib
  • Serrate
Why are plants important for all other living organisms?
  • They are important for making our environment look attractive.
  • They are important predators for other organisms.
  • They are important consumers of other organisms.
  • Without them, food chains would fail as plants are the producers.
Why do leaves need a large surface area?
  • To absorb as much water as possible.
  • To absorb as much sunlight as possible.
  • To absorb as much food as possible.
  • To absorb as much chlorophyll as possible.
What is the function of the midrib?
  • It provides strength throughout the leaf, keeping it upright and sturdy in the wind.
  • It provides sunlight to the leaf for it to carry out photosynthesis.
  • It attaches the leaf to the plant’s stem.
  • It is tiny openings or pores, which allow carbon dioxide to enter and oxygen to exit the leaf.
What is the function of the petiole?
  • It provides strength throughout the leaf, keeping it upright and sturdy in the wind.
  • It provides sunlight to the leaf for it to carry out photosynthesis.
  • It attaches the leaf to the plant’s stem.
  • It is tiny openings or pores, which allow carbon dioxide to enter and oxygen to exit the leaf.
What is the function of the stomata?
  • It provides strength throughout the leaf, keeping it upright and sturdy in the wind.
  • It provides sunlight to the leaf for it to carry out photosynthesis.
  • It attaches the leaf to the plant’s stem.
  • They are is tiny openings or pores, which allow carbon dioxide to enter and oxygen to exit the leaf.
Why are leaves thin?
  • To allow as much water as possible into the leaf.
  • To minimise the distance for carbon dioxide to travel into leaf cells.
  • To allow as much water as possible out of the leaf.
  • To allow as much sunlight as possible to hit the leaf surface.
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