Biology Review Units 1-4

Front

What is the Responding (Dependent) Variable in a scientific experiment?

Back

The Responding (Dependent) Variable is the variable that is measured or observed in an experiment. It is affected by changes in the Independent Variable.

Front

What is carrying capacity in an ecosystem?

Back

Carrying capacity is the maximum number of individuals of a particular species that an environment can support sustainably over time.

Front

What is the basic unit of structure and function in the human body?

Back

The basic unit of structure and function in the human body is the cell.

Front

What does homeostasis mean in the context of living organisms?

Back

Homeostasis refers to the ability of living organisms to maintain a stable internal environment despite changes in external conditions.

Front

What is the correct polymer/monomer pair for nucleic acids?

Back

Nucleic acids are made up of monomers called nucleotides.

Front

What is the role of proteins in biological systems?

Back

Proteins serve various functions including catalyzing biochemical reactions (enzymes), providing structure, and facilitating communication within and between cells.

Front

What are the four main types of macromolecules in living organisms?

Back

The four main types of macromolecules are carbohydrates, lipids, proteins, and nucleic acids.

Front

What is the function of carbohydrates in living organisms?

Back

Carbohydrates provide energy and serve as structural components in cells.

Front

What is the difference between an organ and a tissue?

Back

A tissue is a group of similar cells that perform a specific function, while an organ is made up of different types of tissues working together to perform a complex function.

Front

What is the significance of the cell membrane?

Back

The cell membrane controls the movement of substances in and out of the cell, maintaining homeostasis.