Plants

Question 1

What is Photosynthesis

What is the equation for photosynthesis

What function does glucose have

Answer 1

Carbon Dioxide + Water > Glucose + Oxygen

Photosynthesis is vital process that occurs in leaves of plants - leaves use chlorophyll and light

Glucose acts as food for plant

Question 2

Explain function of following plant adaptations:
- Broad leaves
-
Thin leaves
- Xylem & Phloem
- Chloroplast
- Stomata
- Guard Cells
- Midrib
- Petiole-

Answer 2

• B-road leaves -large surface area to absorb as much sunlight as possible
• Thin leaves - provide short diffusion pathway for glasses to move in/out of cells
• Xylem/Phloem - transport water minerals ions and glucose around plant
• chloroplast contains green substance called chlorophyll which traps energy from sun for photosynthesis
• Stomata - tiny holes found mainly underneath leaf to allow gases to diffuse in/out of leaf. Each hole is a single Stoma
• Guard cells - control opening and closing of Stomata
• Midrib - provides strength throughout leaf keeping it upright and sturdy in wind
• Petiole - attaches leaf to stem

Question 3

What are 4 main layers of a

Describe each

Answer 3

• Upper layer
  Waxy layer protects from water loss, disease and weather
• Palisade layer
  Adapted to absorb a lot if light..had lots of chloroplasts . Shaped like tall box
• Spongy layer
• Lower layer

Question 4

How is water absorbed for photosynthesis

What is a root hair cell- describe structure

Answer 4

• through roots - have a type of cell called root hair cell
  Projects into soil from root . Big surface area and thin walls which let water pass through easily . Normally in dark so do not contain chloroplasts and cannot carry out photosynthesis
• transported through tubes in leaf

Question 5

What’s main function if a leaf
Process for plant making glucose is called ?
Green pigment?
Which gas enters a leaf through the Stomata
What feature allows plants to absorb lots of sunlight
What product is released by photosynthesis

Answer 5

Make glucose

Photosynthesis

Chlorophyll

Carbon Dioxide

Large surface area

Oxygen

Question 6

What’s main function if a leaf
Process for plant making glucose is called ?
Green pigment?
Which gas enters a leaf through the Stomata
What feature allows plants to absorb lots of sunlight
What product is released by photosynthesis

Answer 6

Make glucose

Photosynthesis

Chlorophyll

Carbon Dioxide

Large surface area

Oxygen