A rainbow is not a chemical reaction, but is an optical illusion due to sunlight passing through water droplets in the atmosphere.

Photosynthesis

During the process of photosynthesis, cells use carbon dioxide and energy from the Sun to make sugar molecules and oxygen. These sugar molecules are the basis for more complex molecules made by the photosynthetic cell, such as glucose.

Plants convert energy from sunlight into sugar in a process called photosynthesis. Photosynthesis uses energy from light to convert water and carbon dioxide molecules into glucose (sugar molecule) and oxygen (Figure 2).

The process of photosynthesis is commonly written as: 6CO2 + 6H2O → C6H12O6 + 6O2. This means that the reactants, six carbon dioxide molecules and six water molecules, are converted by light energy captured by chlorophyll (implied by the arrow) into a sugar molecule and six oxygen molecules, the products.

Light-dependent and light-independent reactions are two successive reactions that occur during photosynthesis.

Types of Chemical Reactions

• Synthesis reactions. Two or more reactants combine to make 1 new product.
• Decomposition reactions. A single reactant breaks down to form 2 or more products.
• Single-replacement reactions.
• Double-replacement reactions.
• Combustion reactions.

Respiration is the chemical process by which organic compounds release energy. The compounds change into different ones by exergonic reactions. The hydrolysis of adenosine triphosphate (ATP) to adenosine diphosphate (ADP) and phosphoric acid (Pi) releases energy (it is an exergonic reaction).

The word equation for respiration is: Glucose + Oxygen = Carbon Dioxide and Water The chemical equation is C6H1206 + O2 = CO2 + H20 Respiration is used by all living humans and animals, to make energy for movement, heat and to keep vital organs running, without it we’d be dead.

As they burn the glucose fuel, they produce water and carbon dioxide. Your heart beats faster pumping more fuel and oxygen to the cells and taking carbon dioxide away from the cells.

Aerobic respiration Glucose and oxygen react together in cells to produce carbon dioxide and water and releases energy. The reaction is called aerobic respiration because oxygen from the air is needed for it to work. Energy is released in the reaction.

The major food molecule in living organisms is a sugar called glucose. Most carbohydrates (sugars and starches) are converted into glucose before they are broken down in the cytosol to release energy. The series of steps where glucose is broken down to release energy begins with a metabolic pathway called glycolysis.

Sucrase and isomaltase are involved in the digestion of sugar and starches. Sucrase is the intestinal enzyme that aids in the breakdown of sucrose (table sugar) into glucose and fructose, which are used by the body as fuel. Isomaltase is one of several enzymes that help digest starches.

Aerobic respiration Glucose is oxidised to release its energy, which is then stored in ATP molecules. Aerobic respiration breaks down glucose and combines the broken down products with oxygen, making water and carbon dioxide.

Answer: (a) False, Oxygen breaks down glucose inside the cells of organisms.

Glucose –> carbon dioxide + water + energy. in the absence of oxygen in which glucose breaks into alcohol and carbon dioxide with release of energy.

Carbohydrate: Includes bread, rice, pasta, potatoes, vegetables, fruit, sugar, yogurt, and milk. Our bodies change 100 percent of the carbohydrate we eat into glucose. This affects our blood sugar levels quickly, within an hour or two after eating. Protein: Includes fish, meat, cheese, and peanut butter.

Skipping a meal is typically no big deal. But if you’re a person with diabetes, skipping meals or a lack of meal structure could result in dangerously low or high blood sugar levels.

Since your body doesn’t respond to insulin the same as most, your fasting blood sugar reading can go up, even if you follow a strict diet. The boost in sugar is your body’s way of making sure you have enough energy to get up and start the day.

Citrus fruits Although many citrus fruits are sweet, research shows that they may help reduce blood sugar levels. Citrus fruits are considered low glycemic fruits because they don’t affect blood sugar as much as other types of fruits like watermelon and pineapple ( 50 ).