From cells to organ systems
Grade 9 Science Worksheet

Circle the best answer.
Read this first
Card (textbook facts)
structure cells in it job lining of a kidney tube one type of cube-shaped epithelial cell helps filter the blood Milo sorts a body part using the card. The card describes the lining of a kidney tube. Which level is that lining?
- Tissue
- Organ system
- Organ
- Cell
Noah sorts a body part using the card. The card describes one neuron. Which level is one neuron?
- Tissue
- Organ system
- Cell
- Organ
Pia reads the muscle card. A sample shows stripes, one nucleus in the center of each cell, and no voluntary control. Which tissue is it?
- Nervous tissue
- Skeletal muscle
- Smooth muscle
- Cardiac muscle
Ren reads the muscle card. A sample from the wall of the intestine has no stripes and one central nucleus per cell. Which tissue is it?
- Cardiac muscle
- Nervous tissue
- Skeletal muscle
- Smooth muscle
Tala reads the muscle card. A sample has stripes, many nuclei along each cell's edge, and voluntary control. Which tissue is it?
- Nervous tissue
- Skeletal muscle
- Smooth muscle
- Cardiac muscle
Map (model, not to scale)
Four boxes. The digestive system sends an arrow to the circulatory system, marked nutrients. The respiratory system sends an arrow to the circulatory system, marked oxygen. The circulatory system sends an arrow to the muscle cells, marked nutrients and oxygen. The muscle cells send an arrow back to the circulatory system, marked carbon dioxide.
Zee studies a model map. In the model, the digestive system stops supplying the circulatory system. What does the circulatory system then have less of to deliver to muscle cells?
- Oxygen to deliver to the muscle cells
- Carbon dioxide to collect from the muscle cells
- Nutrients to deliver to the muscle cells
- Nothing to deliver, since the two systems do not depend on each other
Ari studies a model map. In the model, the circulatory system stops collecting carbon dioxide from muscle cells. What does the respiratory system then have less of to release?
- Oxygen to release into the air
- Carbon dioxide to release into the air
- Nutrients to release into the air
- Nothing to release, since the lungs make their own carbon dioxide
Use this
Card (model data), 4 rows. Columns: structure, tissue types inside, cells (thousands). W, muscle only, 900. X, epithelial, connective and muscle, 400. Y, epithelial only, 700. Z, nervous only, 200.
Esme reads a model card of four structures. An organ holds two or more tissue types. Which structure is an organ?
- Structure Y
- Structure Z
- Structure W
- Structure X
Card (model data)
layer of structure K tissue type inner lining epithelial second layer connective third layer muscle fourth layer muscle outer covering epithelial Jun reads a model card of structure K. How many different tissue types does K hold?
- Three
- Five
- Two
- One
Use this
Card (model data), 4 rows. Columns: structure, tissue types inside, cells (thousands). P, epithelial and connective, 150. Q, epithelial, connective, muscle and nervous, 90. R, muscle only, 300. S, epithelial and muscle, 450.
Kira reads a model card of four structures. An organ holds two or more tissue types. Which structure is a single tissue, not an organ?
- Structure S
- Structure P
- Structure R
- Structure Q