How does a catalyst influence a chemical reaction?
Which food contains mostly polysaccharides?
Which process is performed by both plants and animals to break down sugars to provide energy in the form of ATP?
By which process do plants obtain carbon from the atmosphere?
Which macromolecule is the main source of energy for living things?
In which part of the body is glycogen stored?
A doctor suspects that one of her patients has a deficiency in one of the six key elements found in living organisms. He has low energy and extremely weak, soft bones. Based on this information alone, which nutrient supplement will she most likely prescribe?
Which shows the most direct path that carbon can take through the carbon cycle?
Jun is at risk for heart disease so he is watching his cholesterol levels. He refers to the table below to choose what is best for his health.Comparison Chart of Fats Food (14 g)Saturated Fat (g)Monounsaturated Fat (g)Polyunsaturated Fat (g)Butter7.93.70.5Cream cheese3.01.50.2Margarine1.65.43.4Peanut butter1.44.02.6Which snack is the healthiest option for Jun, based on the data in the table?
Which statement describes how enzymes and substrates are related?
A scientist is working with methane (CH4) and butane (C4H10). Which statement best compares these chemicals?
Read the following information from a Material Safety Data Sheet (MSDS) about the chemical hydrochloric acid (HCl).“Skin Contact: In case of contact, immediately flush skin with plenty of water for at least 15 minutes while removing contaminated clothing and shoes. Wash clothing before reuse. Thoroughly clean shoes before reuse. Get medical attention immediately.”Based on this information, which is the most important thing to do right away if a student spills HCl on his shirt?
There are more hydrogen atoms in living organisms than any other atom, but oxygen is more abundant in terms of mass. Why is this statement true?
What scientific knowledge about macromolecules is a direct result of Gerardus Johnannes Mulder’s 1838 discovery?
Lactose (milk sugar) is a carbohydrate that is formed by combining galactose and glucose. Which term best describes this molecule?
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