Cell Structures
Levels of Organization
Body Systems
Plant vs. Animal Cells
Systems Interactions
100

This organelle controls what enters and exits the cell.

What is the cell membrane?

100

This is the lowest level of organization in an organism.

What is a cell?

100

This system is responsible for breaking down food into small molecules that can be absorbed by the body.

What is the digestive system?

100

This structure provides strength and rigidity to plant cells.

What is the cell wall?

100

During peristalsis, this system helps move food through the digestive system.

What is the muscular system?

200

This organelle releases usable energy, or ATP, from food for the cell.

What is the mitochondrion?

200

This level is made up of groups of similar cells working together.

What is tissue?

200

This system removes carbon dioxide while supplying the blood with oxygen.

What is the respiratory system?

200

This organelle transforms light energy into food and is found only in plant cells.

What is the chloroplast?

200

The respiratory system brings in oxygen, and this system transports it to cells.

What is the cardiovascular, or circulatory, system?

300

This organelle contains the genetic information of the cell.

What is the nucleus?

300

Put these in order from least to most complex: organs, cells, organ systems, tissues.

What is cells → tissues → organs → organ systems?

300

This system maintains water and chemical balance by eliminating waste products.

What is the excretory system?

300

Plant cells need chloroplasts to make food because of this reason.

What is most plants cannot move to get food on their own?

300

This is the term for when organ systems interact to maintain balance in the body.

What is homeostasis?

400

This organelle breaks down waste and cell parts when they die.

What is the lysosome?

400

The skin is composed of these two levels of organization.

What are cells and tissues?

400

This system protects internal organs and assists in locomotion.

What is the skeletal system?

400

In animal cells, the cell membrane is the outermost layer. In plant cells, where is the cell membrane located?

What is between the cell wall and everything inside the cell?

400

The stomach and intestines work together to absorb nutrients, demonstrating what concept?

What is different organs working together as subsystems to carry out complex functions?

500

If a cell has a disorder of the mitochondria, what symptom would the cell most likely show?

What is a shortage of energy required for life processes?

500

For the circulatory system, arrange these from least to most complex: circulatory system, heart, cardiac tissue, muscle cells.

What is muscle cells → cardiac tissue → heart → circulatory system?

500

The brain, spinal cord, and nerves working together for one purpose are an example of this.

What is an organ system, specifically the nervous system?

500

If Mitchell is creating a model of a plant cell and wants to include organelles involved in energy production, which two organelles should he include?

What are chloroplasts, which transform light energy, and mitochondria, which release energy from food?

500

Name the two systems responsible for these interactions with the digestive system: one moves food through it through mechanical digestion, and another delivers nutrients to the rest of the body.

What are the muscular system and the cardiovascular system?