Organic Substances

Question 1

Carbohydrates

Answer 1

provide much of the energy cells require, which is stored as reserve energy, and supplies materials to build cell structures

Question 2

Lipids

Answer 2

not water soluble, contain 3 compounds: phospholipids, fats, and steroids

Question 3

Fats

Answer 3

primarily used to store energy for cellular activities made of 3 fatty acid chains and 1 glycerol molecule, store more energy than carbs

Question 4

Phospholipids

Answer 4

similar to fats, but has one less fatty acid chain and instead has a phosphate group which forms the head of the chain and is soluble in water

Question 5

Steroids

Answer 5

connected rings of carbon atoms, one of the most important steroids is cholesterol (used to synthesize estrogen, progesterone, testosterone)

Question 6

Proteins

Answer 6

serve as structural material, can be an energy source or even act as a hormone, their building blocks are amino acids

Question 7

What are antibodies?

Answer 7

antibodies are proteins that detect and destroy foreign objects in the body

Question 8

What are enzymes?

Answer 8

enzymes are proteins that catalyze chemical reactions