Everything Life Sciences Grade 10

FACT WATCH: Watch a video demonstration of the test for glucose. See video: SHORTCODEat http://www.everythingscience.co.za drop ...

albumen solution or egg white starch solution water Benedict’s solution Fehling’s solution marking pen to mark the test tubes t ...

Figure 2.12: Test for reducing sugars using Benedict’s test Results: Construct a table to record the results of this experiment. ...

FACT When drawing organic molecules, it can easily get confusing writing out all of the ’C’s and ’H’s for carbon and hydrogen re ...

FACT You will learn more about how cholesterol can clog arteries and lead to heart disease in the chapter on transport systems i ...

FACT Because the sequence of amino acids determines the way that a protein folds, if you start with a certain peptide chain, you ...

completely byhydrogen bonding. Hydrogen bonding usually results in regions of the chain coiling and other regions forming sheets ...

FACT Meat or vegetables: which is a better source of protein? Both animal protein and protein from vegetables is good for health ...

minerals. The best animal protein sources are fish and poultry. bunsen burner and a beaker containing water orwater bath with h ...

FACT WATCH:View a video demonstration of the experiment to test for proteins: See video: SHORTCODEat http://www.everythingscienc ...

Figure 2.19: Enzymes lower the activation energy, thus making reactions occur faster Enzymes are not consumed by the reactions t ...

Investigation: Investigating how biological washing powders work Aim: To test how enzymes in biological washing powders work App ...

FACT The optimal pH and temperature for an enzyme will be determined by the kind of living thing it is found in. The enzymes in ...

will study the effect of the enzyme catalase on the breakdown of hydrogen peroxide. You will further examine the effect of pH an ...

Investigation: PART B Aim: To demonstrate the effect of temperature on catalase activity Method: Add 3 ml of hydrogen peroxide ...

FACT The structure and function of the nucleus will be explained in details in the next chapter: The basic units of life. Figure ...

Vitamin Role Food sources Deficiency disease Vitamin A Needed for proper functioning of eyes liver, carrots, egg night blindness ...

2.6 Recommended Dietary Allowance In order to ensure that we consume adequate quantities of all the food types, nutritionists ha ...

FACT Did you know? Malnutrition, which is the lack of a balanced diet, is a major problem in South Africa. Key vitamins have bee ...

Name the key food items you would include in a balanced diet Nutrient composition of some common foods Food type Energy (kJ) P ...