Photosynthesis 2.9 + 8.3 HL

The other part of the energy reactions – PHOTOSYNTHESIS. Remember that respiration and photosynthesis are linked through ATP.overview


First the syllabus:

COREsyllabus new photosynthesis coresyllabus new photosynthesis core bsyllabus new photosynthesis hl


ABSORPTION SPECTRUM & ACTION SPECTRUMabsorption spectrum

photosynthesis_actionspectrum


PLANT PHOTOSYNTHETIC PIGMENTSExample of pigment separation

Pigments from a spinach leaf – paper chromatography in the labTLC_spinach pigments

ABSORPTION & ACTION SPECTRA, and PHOTOSYNTHESIS PIGMENTS – questions for understanding

photosynthesis analysis

A long but good lab investigation, looking at absorption spectra: pigment absorbance spectrum inv

READING: Chloroplast pigments and light harvesting: light harvesting 1 light harvesting 2

OBLIGATORY PRACTICAL #4 – Separating plant pigments by chromatography

Here is a virtual lab: http://www.phschool.com/science/biology_place/labbench/lab4/intro.html


LEAF STRUCTURE & CHLOROPLASTS

CHLOROPLAST STRUCTURE

leaf and chloroplast


THE LIGHT DEPENDENT REACTIONS

light dependent reactions 1

light dependent reactions 2


THE LIGHT INDEPENDENT REACTIONS

light independent reactions 1

light independent reactions 2


LIMITING FACTORS IN  PHOTOSYNTHESIS

limiting factors 1

limiting factors 2

limiting factors

LIMITING FACTORS SCREEN  CAPTURE

MEASURING THE RATE OF PHOTOSYNTHESIS

This is a standard lab for IB. Usually Canadian pondweed (Elodea sp) is used and the bubble of oxygen counted as they are given off, or collected. The rate of bubbling changes according to the environmental conditions. The trouble is – Elodea is not easily available and anyway, the lab often does not generate viable results. So …..

THE FLOATING LEAF ASSAY METHOD FOR MEASURING THE RATE OF PHOTOSYNTHESIS

This is a fun little investigation and should produce nice results. The lab can be done with very simple equipment, if necessary.

Link: floating leaf disk assay rev word 2013


CALVIN’S EXPERIMENTS TO ELUCIDATE THE CARBOXYLATION OF RuBPcalvin experiments


PHOTOSYNTHESIS’ IMPACT UPON THE ATMOSPHERE, THE OCEANS AND ROCK DEPOSITION

bioknowledgy-29-photosynthesis-27-638


LEARNING POWERPOINT: Photosynthesis – Huss


A few IB multiple choice questions – HL only: mc questions hl only

Eyyy! left to right