Keystone Biology Module 1 Practice

Front

What is ATP and why is it important for cells?

Back

ATP (Adenosine Triphosphate) is the primary energy carrier in cells. It provides the energy needed for various cellular processes, including metabolism, movement, and cell division.

Front

What are the main differences between prokaryotic and eukaryotic cells?

Back

Prokaryotic cells are simpler, smaller, and lack a nucleus and membrane-bound organelles. Eukaryotic cells are larger, more complex, and contain a nucleus and organelles.

Front

What is photosynthesis and where does it occur in plants?

Back

Photosynthesis is the process by which green plants convert light energy into chemical energy (glucose) using carbon dioxide and water. It occurs mainly in the chloroplasts of plant cells.

Front

What is cellular respiration and why is it essential for living organisms?

Back

Cellular respiration is the process by which cells convert glucose and oxygen into energy (ATP), carbon dioxide, and water. It is essential for providing energy for cellular activities.

Front

How are photosynthesis and cellular respiration interconnected?

Back

Photosynthesis produces glucose and oxygen, which are used in cellular respiration to produce ATP, while cellular respiration produces carbon dioxide and water, which are used in photosynthesis.

Front

What is the function of the Golgi apparatus in a cell?

Back

The Golgi apparatus processes, packages, and distributes proteins and lipids produced by the endoplasmic reticulum for export or use within the cell.

Front

What are lipids and what role do they play in biological systems?

Back

Lipids are a group of hydrophobic molecules, including fats and oils, that serve as energy storage, structural components of cell membranes, and signaling molecules.

Front

What are nucleic acids and their primary functions?

Back

Nucleic acids, such as DNA and RNA, are molecules that store and transmit genetic information and are involved in protein synthesis.

Front

What is the role of proteins in living organisms?

Back

Proteins perform a wide range of functions, including catalyzing biochemical reactions (enzymes), providing structural support, and facilitating communication and transport within and between cells.

Front

What is the significance of cell membranes?

Back

Cell membranes are crucial for maintaining homeostasis, protecting the cell, and regulating the movement of substances in and out of the cell.