Natural Sciences Grade 8 Natural Sciences Grade 8

Do animals photosynthesise, navigation menu

For example, phenols sterilise well but are corrosive and toxic.

photosynthesize

In physiology, respiration refers to the transport of oxygen from the outside air to the cells and the transport of carbon dioxide out of the tissues and into the air. Brew up some batches in the school lab - but don't drink it. Record your observations in a table.

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CAM plants store the CO2 mostly in the form of malic acid via carboxylation of phosphoenolpyruvate to oxaloacetate, which is then reduced to malate. Blue light triggers the development of gamete-producing gametangia: Each growing branch tip has a region of dividing epidermal cells where growth occurs, forming an apical meristem, which is housed inside an invagination at the tip.

It is rarely produced commercially but often home brewed. This activity may be done in groups or individually.

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Why trees 'scream' and other fascinating facts Whereas it is generally accepted that we know less about the ocean floor than we know about the surface of the moon, we know even less about life in the soil. We call it a by-product as it is not the main product that is wanted from the process.

During photosynthesis in plants, oxygen is produced as a by-product.

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Over years Dennis has assembled a vast collection of these micrographs, many of which have been colorized and can be viewed on his website. On its own, a tree cannot establish a consistent local climate.

Water diffuses from the alveoli cells into the alveoli so that they are constantly moist. These sporangiospores allow the fungus to rapidly disperse and germinate into new genetically identical haploid fungal mycelia.

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You also need to fill this in. This is a diploid zygote. Does temperature have much effect on the rate?

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Let's find out why. When this fuel is burned in the presence of oxygen, the chemical potential energy is transferred into light and heat energy. Should they use these mild days to photosynthesise a while longer and quickly stash away a few extra calories of sugar?

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He should have put the plants in a place where they would get enough radiant energy sunlight to allow them to photosynthesise.