ibbriner
  • Home
  • Biology
    • Topic links
    • Course details
    • Full syllabus >
      • Topic 1 >
        • 1.1
        • 1.2
        • 1.3
        • 1.4
        • 1.5
        • 1.6
      • Topic 2 >
        • 2.1
        • 2.2
        • 2.3/2.4
        • 2.5
        • 2.6
        • 2.7a
        • 2.7b
        • 2.8
        • 2.9
      • Topic 3 >
        • 3.1
        • 3.2
        • 3.3
        • 3.4
        • 3.5
      • Topic 4 >
        • 4.1/4.2
        • 4.3/4.4
      • Topic 5 >
        • 5.1
        • 5.2
        • 5.3
        • 5.4
      • Topic 6 >
        • 6.1
        • 6.2
        • 6.3
        • 6.4
        • 6.5
        • 6.6a
        • 6.6b
      • Topic 7 >
        • 7.1
        • 7.2
        • 7.3
      • Topic 8 >
        • 8.1
        • 8.2
        • 8.3
      • Topic 9 >
        • 9.1
        • 9.2
        • 9.3
        • 9.4
      • Topic 10 >
        • 10.1
        • 10.2
        • 10.3
      • Topic 11 >
        • 11.1
        • 11.2
        • 11.3
        • 11.4
      • Option A
      • Option C
    • Internal Assessment >
      • Grading
      • Guide
      • Statistics
      • Tables and Graphs
  • ESS
    • Course details
    • Full syllabus
    • IA Guide
  • TOK
    • Course details >
      • Psychology discussions
    • TOK Presentation
    • TOK Essay
  • More
    • Extended Essay
    • Group 4 Project
    • Books and podcasts
    • Travel tips
  • Contact

9.3 - Growth in plants

1.6
Home
6.3

Assessment statements

DCS Topic Code Statement Guidance
9.3.U1 Undifferentiated cells in the meristems of plants allow indeterminate growth.  
9.3.U2 Mitosis and cell division in the shoot apex provide cells needed for extension of the stem and development of leaves.  
9.3.U3 Plant hormones control growth in the shoot apex. Auxin is the only named hormone that is expected.
9.3.U4 Plant shoots respond to the environment by tropisms.  
9.3.U5 Auxin efflux pumps can set up concentration gradients of auxin in plant tissue.  
9.3.U6 Auxin influences cell growth rates by changing the pattern of gene expression.  
9.3.A1 Micropropagation of plants using tissue from the shoot apex, nutrient agar gels and growth hormones.  
9.3.A2 Use of micropropagation for rapid bulking up of new varieties, production of virus-free strains of existing varieties and propagation of orchids and other rare species.  

Notes

9.3_notes.pdf
File Size: 613 kb
File Type: pdf
Download File


PlayPosit


Review PowerPoint

9.3_plant_growth.ppt
File Size: 1483 kb
File Type: ppt
Download File

  • Home
  • Biology
    • Topic links
    • Course details
    • Full syllabus >
      • Topic 1 >
        • 1.1
        • 1.2
        • 1.3
        • 1.4
        • 1.5
        • 1.6
      • Topic 2 >
        • 2.1
        • 2.2
        • 2.3/2.4
        • 2.5
        • 2.6
        • 2.7a
        • 2.7b
        • 2.8
        • 2.9
      • Topic 3 >
        • 3.1
        • 3.2
        • 3.3
        • 3.4
        • 3.5
      • Topic 4 >
        • 4.1/4.2
        • 4.3/4.4
      • Topic 5 >
        • 5.1
        • 5.2
        • 5.3
        • 5.4
      • Topic 6 >
        • 6.1
        • 6.2
        • 6.3
        • 6.4
        • 6.5
        • 6.6a
        • 6.6b
      • Topic 7 >
        • 7.1
        • 7.2
        • 7.3
      • Topic 8 >
        • 8.1
        • 8.2
        • 8.3
      • Topic 9 >
        • 9.1
        • 9.2
        • 9.3
        • 9.4
      • Topic 10 >
        • 10.1
        • 10.2
        • 10.3
      • Topic 11 >
        • 11.1
        • 11.2
        • 11.3
        • 11.4
      • Option A
      • Option C
    • Internal Assessment >
      • Grading
      • Guide
      • Statistics
      • Tables and Graphs
  • ESS
    • Course details
    • Full syllabus
    • IA Guide
  • TOK
    • Course details >
      • Psychology discussions
    • TOK Presentation
    • TOK Essay
  • More
    • Extended Essay
    • Group 4 Project
    • Books and podcasts
    • Travel tips
  • Contact