L/O/G/O

Biology An-Nahl Biology An-Nahl

Prepared by : Teacher Sue

SECTION 2 : FOOD & NUTRITION

ContentsContents

2.1 Making food from sunlight 2.1 Making food from sunlight

2.2 Gaining water and nutrients 2.2 Gaining water and nutrients

2.3 Human food and diet

2.3 Human food and diet

2.4 Digestion in Humans 2.4 Digestion in Humans

Making food from sunlight

Learning Objectives

At the end of the lesson students should be able to :

• Describe the process of photosynthesis• List the products of photosynthesis

HOW do plants make their own food?

How???

waterLight energy

carbon dioxidechlorophyll

the leaf glucose

oxygen

photosynthesis

Atomic Shuffle

Evidence that light is needed for photosynthesis

The leaf on the left is attached to a plant in light. The leaf on the right

has been tested for starch. The blue-black colour shows that starch

has been produced only where light shone on the leaf

Testing a leaf for starch

The leaf structure

The structures in a leaf are arranged so that carbon dioxide and water flow into the

leaf and glucose and oxygen can leave easily

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44

Glucose : As a supply of energy to make fats and oils (in seed)

Made into sucrose - to be made into starch - to be converted into cellulose

To make proteins - glucose combined with nitrates

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To make chlorophyll - Glucose combined with magnesium

Use of FoodUse of Food

Integration & Islamization (I2)Integration & Islamization (I2)Who governs the Plant?

Plants are organisms without any traces of consciousness and reason such as decision-making or free will.

But as you can see from the information provided this far, the processes carried out by plants do require considerable consciousness and reason.

Indeed, plants succeed in performing activities that human beings cannot replicate with their conscious knowledge and advanced technology, and in spaces of time as brief as a millionth of a second. So to whom does this intelligence—which human beings come nowhere near approaching—belong?

Since the day they were first created, plants have been behaving in the manner inspired in them by Allah, with His infinite knowledge and intelligence.Each of the plants’ cell, is told how to behave at every moment. This is revealed in a verse from the Qur’an:

It is Allah Who created the seven heavens and of the Earth the same number, the Command descending down through all of them, so that you might know that Allah has power over all things and that Allah encompasses all things in His knowledge. (Surat at-Talaq:12)

Whenever Allah wills a thing to come about, it is enough for Him just to say, "Be!"

Whenever Allah wills a thing to come about, it is enough for Him just to say, "Be!"

As we are told in verses of the Qur’an:

His command when He desires a thing is just to say to it, “Be!” and it is. (Surah Ya Sin: 82)

QuestionsQuestions

Plants make their own food using ________

energy, carbon dioxide from the air and ______ from the soil. The process is called ________ . Leaves look ________ because they contain chlorophyll. The __________ traps light energy. Most chlorophyll is in the _______ cells near the top of the surface.

QuestionsQuestions

1 The roots of green plants take up nitrates from the soil.What are the nitrates used to make?

A FatB GlucoseC ProteinD Starch

2 Why is sunlight is necessary for photosynthesis?

A It is a catalystB It is a source of energyC It provides nutrientsD It provides oxygen

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