Semester Exam

Front

What is a carbohydrate?

Back

A carbohydrate is a biomolecule consisting of carbon, hydrogen, and oxygen, typically in a ratio of 1:2:1. They are a primary source of energy for living organisms.

Front

What is a hypertonic solution?

Back

A hypertonic solution is one that has a higher concentration of solutes compared to another solution, leading to the movement of water out of cells, causing them to shrink.

Front

What are the products of photosynthesis?

Back

The products of photosynthesis are glucose and oxygen, which are used by plants for energy and as a byproduct.

Front

What biomolecule releases energy slowly?

Back

Lipids release energy slowly compared to carbohydrates and proteins, making them a long-term energy storage option.

Front

Where does the electron transport chain occur in cellular respiration?

Back

The electron transport chain occurs in the inner mitochondrial membrane.

Front

What is the role of carbohydrates in living organisms?

Back

Carbohydrates serve as a primary energy source, provide structural support in cells, and are involved in cell recognition processes.

Front

What is the difference between isotonic, hypotonic, and hypertonic solutions?

Back

Isotonic solutions have equal solute concentrations, hypotonic solutions have lower solute concentrations, and hypertonic solutions have higher solute concentrations compared to the cell.

Front

What are the reactants of cellular respiration?

Back

The reactants of cellular respiration are glucose and oxygen, which are converted into carbon dioxide, water, and energy (ATP).

Front

What is glycolysis?

Back

Glycolysis is the first step of cellular respiration that occurs in the cytoplasm, where glucose is broken down into pyruvate, producing a small amount of ATP.

Front

What is the Krebs cycle?

Back

The Krebs cycle, also known as the citric acid cycle, is a series of chemical reactions in the mitochondria that generates energy through the oxidation of acetyl-CoA.