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SBI3U7
Plant Science
Plant Growth, Structure & Reproduction
1. a) Outline the major plant groups
GROUP
Other Name
Bryophyta
Filinicophyta
Coniferophyta
Angiospermatophyta
Description
Transport System
Characteristics
Example
b) Distinguish between angiospermophytes and gymnospermophytes.
2. Complete the table below to distinguish between monocotyledons and dicotyledons.
Monocotyledon
Examples
Number of
cotyledons
(seed leaves)
Roots
Stem tissue
distribution
Leaves
Flower parts
3. a) In the space below, draw and label a diagram of a root
Dicotyledon
b) Describe the function and structure of a root
Root Function
Structure
Location/function
Root Cap
Root hairs
Cortex
Vascular cylinder
c) Describe named examples of modifications of roots.
4. a) In the space below, draw and label a diagram of a dicot stem.
b) Describe the function and structure of a dicot stem
Stem Function
Structure
Function/Location
Vascular
bundles
Vascular
Cambium
Pith
Cortex
c) Describe named examples of stem modifications.
5. a) Draw and label a diagram of a dicot leaf.
b) Outline the functions of the following leaf structure. How does their position/ distribution in the leaf relate to their
function?
Structure
Function
Distribution/ function relationship
Waxy cuticle
Palisade mesophyll
Spongy mesophyll
Vascular bundle
i. xylem
ii. phloem
Guard cells and stomata
c) Describe named examples of modified leaves.
6. a) Define meristem.
b) Explain why meristem cells are more likely to be in mitosis than cells found in other parts of the plant.
c) Distinguish between apical and lateral meristems in terms of location and function in the stem.
Apical
Location
Lateral
Function
7. a) Define tropism.
b) Compare these types of tropism:
Response to:
Description
Phototropism
Geotropism
Hydrotropism
c) Define auxin.
d) Explain, with the aid of a diagram, the role of auxins in phototropism.
8. a) Draw and label a simple line drawing of an animal-pollinated dicot flower.
Positive or
negative?
b) Identify the function of the parts of a dicot flower.
Structure
Function
Sepals
Petals
Anther
Filament
Sigma
Style
Ovary
9. a) Define pollination.
b) Outline the steps of pollination to an insect attractive flower. Begin with attraction of the insect to the flower.
c) Distinguish between self-pollination and cross-pollination.
d) Define fertilization
e) Describe the process of fertilization in a flowering plant. Begin with the pollen grain on the stigma.
f) Define seed dispersal
g) Outline the variety methods of seed dispersal.
h) State two advantages of dispersing seeds over a wide area.
10. a) In the space below, draw a simple line drawing to show the structure of a green bean seed.
b) Identify the function of the parts of a dicot seed.
Structure
Function
Testa
Micropyle
Radical (embryo root &
embryo shoot)
Cotyledons
c) Define germination.
d) Outline the conditions required for the germination of a seed
Water –
Temperature –
Oxygen –
e) Outline the metabolic processes during the germination of a starchy seed. Use a diagram to help you.
f) Outline the role of gibberellins in the
germination of a seed.
11. a) Describe these three methods of mineral ion
movement through the soil to the roots:
I. Diffusion
II. Mass flow
III.
Via fungal hyphae (how is this relationship mutualistic?)
b) Explain why mineral ions need to be taken up by active transport in the roots.
(Go all the way back to membrane transport!)
12. a) Define xerophyte. Give an example.
b) Define hydrophyte. Give an example.
c) Compare the adaptations of xerophytes and hydrophytes
Xerophyte
Hydrophyte