Biology Definitions Quiz

What is the definition of *Prokaryotic*?

• Organisms with cells that have a nucleus and membrane-bound organelles.

• Organisms that lack a nucleus and other membrane-bound organelles in their cells.

• Organisms made up of more than one cell.

• Organisms that can produce their own food through photosynthesis.

What is the definition of *Eukaryotic*?

• Organisms made up of a single cell.

• Organisms whose cells contain a nucleus and membrane-bound organelles.

• Organisms that lack a cell wall.

• Organisms that consume other organisms for food.

What is the purpose of a *Dichotomous Key*?

• To identify the genetic material of an organism.

• To classify organisms based on their characteristics using a series of yes/no questions.

• To describe the function of organelles in eukaryotic cells.

• To study the process of cell division.

What does *Unicellular* mean?

• Organisms made up of a single cell.

• Organisms that cannot make their own food.

• Organisms with many cells working together.

• Organisms that have a nucleus and membrane-bound organelles.

What does *Multicellular* mean?

• Organisms that are made up of a single cell.

• Organisms that are composed of more than one cell with specialized functions.

• Organisms that produce their own food.

• Organisms that only live in water.

What is *Respiration*?

• The process of removing waste products from an organism's body.

• The process of producing energy by breaking down glucose and oxygen in the cell.

• The process of cell division.

• The process by which plants make their own food.

What is the *Cell Theory*?

• All organisms are made up of one cell.

• Cells are the basic units of life, and all living organisms are made of cells.

• Only eukaryotic cells have a nucleus.

• Cells arise from non-living matter.

What is *Excretion*?

• The process of breaking down glucose for energy.

• The process of removing waste products from an organism’s body.

• The process of storing nutrients for energy.

• The process of producing food in plants.

What does *DNA* stand for?

• Deoxyribonucleic Acid, the molecule that carries genetic instructions.

• Deoxyribonucleic Acid, an energy source in cells.

• Dioxide Nucleotide, used in respiration.

• Deoxyribonucleic Antigen, part of the immune system.

What is the function of the *Nucleus*?

• It provides structure to the cell.

• It stores water and nutrients for the cell.

• It contains the genetic material and controls the cell’s activities.

• It synthesizes proteins.