intervention material in science (photosynthesis)

An Intervention Material in Science 9

Prepared by:

JOHN FLORENTINO E. ECHON

Science Teacher

Submitted to:

LENIE N. ELAMPARO,

Ed. D. Principal II

PHOTOSYNTHESIS

JOHN FLORENTINO E. ECHONProponent, Taltal National High School

LENIE N. ELAMPARO, Ed. D.Principal II, Taltal National High School

A Strategic Intervention Material

in Science 9

APRIL 2016

Least Mastered Learning

Competency

Compare the light and dark

reactions in

photosynthesis.

JOHN FLORENTINO E. ECHON, TNHS

Guide

CardJOHN FLORENTINO E. ECHON, TNHS

WHAT IS PHOTOSYNTHESIS?

Plants, algae, and other chlorophyll-bearing organisms capture light energy and use it to produce food. This energy is passed on to animals that feed directly on plants or on other animals that have fed on plants. The entire process of capturing light energy to produce food is called photosynthesis.

The equation is:6CO2 + 6H2O + light chlorophyll -> C6H12O6 + O6


REMEMBER

In the light-dependent process, light strikes chlorophyll in such a way as to excite electrons to a higher energy state. In a series of reactions, the energy is converted (along an electron transport

process) into ATP and NADPH. Water is split in the process, releasing oxygen as a by product of the reaction. The ATP and NADPH are used to make C-C bonds in the dark reaction. The photosynthetic process, in which food(sugar) molecules are

formed from the carbon dioxide in the atmosphere with the use of ATP can occur in the dark as long as ATP is present.

Photosynthesis is two stage process. The light reaction that took place in the grana of the chloroplast and the dark

reaction that took place in he stroma of the chloroplast.


Photosynthetic General Equation


What Happens during the photosynthesis?


activity


Photosynthetic General Equation


Study the diagram below and complete it using the words in the box.SUN

Light energy

Is absorbed by

Energy carrier that becomes ENERGIZED CHLOROPHYLL that supplies energy to

split and add

2H

That is releasedThat are trapped byNADP (H acceptor)

forming

For use in the dark reaction

p

to

( energy carrier)

forming

That stores energy

Water OxygenNADPH2 WaterChlorophyll


assessment


Photosynthetic General Equation1. Which of the following reactions is also known as photo phase?

a. Light dependent b. Light independent c. Anaphase

2. Which of the following reactions is also known as synthesis phase?

a. Light dependent b . Light independent c. Metaphase

3. What kind of energy is used to split two molecules of water?

a. Light b. Proton c. Neutron

4. What is the energy source of the cell?

a. NAD b. ADP c. ATP

5. What is made up of 5-carbon sugar and an important carbon dioxide acceptor?

a. ATP b. RUDP c. PGAL


enrichment


COMPLETE THE SENTENCE

The ___________ is the conversion of light energy into chemical energy. The light dependent reaction includes the conversion of __________ energy into electron energy, then into short-term energy storage __________. The __________ reaction involves the conversion of short-term energy storage to long term energy storage ___________.


reference


Dela Cruz, Susana B. Biology ( Pheonix Next Century)

Agar, Irene C. et.al. Science and Technology II
