7th Grade Science Review

Front

What is a plant cell?

Back

A plant cell is a type of cell that is found in plants. It has a rigid cell wall, chloroplasts for photosynthesis, and a large central vacuole.

Front

What is the correct order of biological organization?

Back

The correct order is: cell -> tissue -> organ -> organ system -> organism.

Front

What is a gene?

Back

A gene is a segment of DNA that carries information and controls a specific trait.

Front

What does the symbol 'N' represent in the periodic table?

Back

The symbol 'N' represents Nitrogen, which is a chemical element.

Front

Who discovered cells for the first time?

Back

Robert Hooke was the first scientist to discover cells.

Front

What is the function of chloroplasts in plant cells?

Back

Chloroplasts are organelles that conduct photosynthesis, converting light energy into chemical energy.

Front

What is the role of the cell membrane?

Back

The cell membrane controls what enters and exits the cell, providing protection and support.

Front

What are tissues?

Back

Tissues are groups of similar cells that work together to perform a specific function.

Front

What is an organ?

Back

An organ is a structure made up of different types of tissues that work together to perform a specific function.

Front

What is an organ system?

Back

An organ system is a group of organs that work together to perform complex functions in the body.