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Soil Nitrogen Level

Hormones as Regulators of Metabolic Activity | Plant Mineral Requirement (any two) | Large Plant Cell Vacuole | Folded Shape of Enzymes | To Determine the Effect of pH on the Rate of Enzyme Action. | To Investigate the Influence of Light Intensity on the Rate of Photosynthesis | Bioprocessing Procedure |


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Clover is abundant in those areas of low soil nitrate.
Grass is abundant in areas of high nitrate level.


Adaptations of Organisms to their Environment

An adaptation is a feature that suits the organism to its environment. Adaptations are solutions to a problem.

Examples of Adaptations (see also competitive, predator and prey adaptations.)


Collection Methods in Ecological Studies (Mandatory Activity)

Textbook Diagrams of the following:

Direct search for a particular species is a common practice.


Errors During Fieldwork

The Cell

Cell Theory

All living organisms are made up of cells and new cells are produced when live cells divide.

Textbook Diagrams: animal and plant cell as seen with light and electron microscopes.

Light Microscope Study
Components of Animal Cells: cell membrane, cytoplasm, nucleus, chromosomes.

Extra Components of Plant Cells: cell wall, chloroplast, vacuole.

Electron Microscope Study
Extra components and details:

Cell membrane, mitochondrion, nuclear pores, ribosomes, chromatin, details of chloroplast mitochondrion structure, double membrane nature of nuclear envelope and outline structure of cell membranes.

(The term protoplasm is useful and refers to the cell membrane, cytoplasm and its contents and the nucleus. The large vacuole of plant cells is not included.)


Cell Structure


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Conduct a Quantitative Survey of Plants, e.g., distribution of daisies| Cell Membrane

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