Macromolecules and Their Functions

The video explores Unit 1.2, focusing on the elements of life, particularly the conservation of energy. It explains how energy is transferred through ecosystems, from the sun to plants, animals, and predators. The video introduces macromolecules, emphasizing carbon's role as a backbone in organic molecules. It also highlights the importance of nitrogen and phosphorus in forming proteins and nucleic acids, essential for life processes.

What is the primary source of energy for all living things?

• The Ocean

• The Sun

• The Moon

• The Wind

Which organism in the food chain receives the least amount of energy?

• Frog

• Grasshopper

• Grass

• Snake

What element forms the backbone of most organic molecules?

• Nitrogen

• Carbon

• Hydrogen

• Oxygen

Which of the following is NOT a macromolecule discussed in the video?

• Carbohydrates

• Nucleic acids

• Vitamins

• Lipids

What is a unique property of carbon that allows it to form diverse organic molecules?

• It can bind with two other atoms

• It can bind with four other atoms

• It can bind with six other atoms

• It can bind with eight other atoms

Which macromolecule is primarily responsible for storing genetic information?

• Proteins

• Lipids

• Nucleic acids

• Carbohydrates

What element is essential for the formation of amino acids?

• Phosphorus

• Sulfur

• Calcium

• Nitrogen

Which element is crucial for the structure of cell membranes?

• Hydrogen

• Oxygen

• Carbon

• Phosphorus

What is the role of phosphorus in nucleic acids?

• It provides energy

• It forms the backbone

• It binds with proteins

• It acts as a catalyst

Which of the following is a special nucleotide mentioned in the video?

• DNA

• RNA

• ATP

• GTP