IGCSE BIOLOGY GENERAL REVIEW Ch. 1-5 | Baamboozle - Baamboozle

With all the info from the picture classify each solution depending on its tonicity

1. Hypertonic solution / 2. Isotonic solution / 3.Hypotonic solution

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Use all your knowledge about ENZYMES to explain the following image:

The rate of reaction is affected by pH, not all enzymes work at the same pH, there's an optimum pH, denaturalisation, etc.

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Explain how ENZYMES work and give 2 examples.

Biological catalists, lock-key model, enzyme-substrate complex, optimum ph and T°... Brewing, washing powders, digestion, photosynthesis, etc.

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Why viruses are not considered living organisms and why aren't destroyed by antibiotics?

They can't live without a host (no MRS GREN). Antibiotics attack bacterial structures that viruses don't have (cell wall, cell membreane)

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The image represents 3 biological molecules. Name them and identify each structure of the diagrams.

1. Fat molecule / 2. Protein molecule/ 3. Carbohydrate molecule

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lifesaver

Give 15 points!

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magnet

Take 10 points!

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fairy

Take points!

lifesaver

Give 20 points!

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Name the principal clases of the following groups: VERTEBRATES, ARTHROPODS, MOLLUSCS

VERTEBRATES: Mammals, Reptiles, Fish, Amphibians, Birds / ARTHROPODS: Crustaceans, Arachnids, Myriapods, Insects / MOLLUSCS: Bivalves, Gastropods, Cephalopods

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Define the term OSMOSIS and name 1 example

NET MOVEMENT of WATER MOLECULES from a region of HIGHER WATER POTENTIAL (diluted) to a region of LOWER WATER POTENTIAL (concentrated) through a SEMIPERMEABLE ME

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trap

No points!

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gift

Win 15 points!

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gift

Win 10 points!

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thief

Give points!

seesaw

Swap points!

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gift

Win 10 points!

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fairy

Take points!

lifesaver

Give 20 points!

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seesaw

Swap points!

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shark

Other team loses 20 points!

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rocket

Go to first place!

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banana

Go to last place!

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How would you test the presence of VITAMIN C?

Add a few drops of DCPIP (blue dye) and in the presence of Vitamin C, it turns COLOURLESS.

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Name the 4 factors that affect the RATE of ENZYME ACTION.

Temperature, pH, concentration of enzyme, concentration of substrate.

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How would you test the presence of PROTEINS?

Add BIURET REAGENT, it turns PURPLE in the presence of proteins.

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Name the characteristics of all living organisms.

Movement, Respiration, Sensitivity, Growth, Reproduction, Excretion, Nutrition

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Biologists compare the s_________ of the b______in the ____ of organisms from different species to see how related they are.

sequences - bases

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