Cell Detectives
An organism made of just one cell is called this.
What is unicellular?
This cell part contains instructions that direct cell activities.
What is the nucleus?
This system brings oxygen into the body.
What is the respiratory system?
These detect stimuli such as heat, light, and sound.
What are sensory receptors?
During a run, the student's heart rate and breathing rate do this.
What is increase?
Scientists observe one cell in each bacterium under a microscope. This supports what conclusion?
What is bacteria are unicellular?
Damage to this cell part could prevent a cell from controlling what enters and leaves.
What is the cell membrane?
This system carries oxygen and nutrients through the blood.
What is the circulatory system?
This organ helps process sensory information and coordinate responses.
What is the brain?
These are two observations that show the body responds to running.
What are increased heart rate and quicker breathing?
Two cells have different shapes. This may be because they perform these.
What are different functions?
If these stop working in a plant cell, the cell has difficulty making food using sunlight.
What are chloroplasts?
Put these in order: tissue, organ system, cell, organ.
What is cell → tissue → organ → organ system?
Sensory receptors detect heat, and the body pulls the hand away. This response helps prevent this.
What is injury?
Muscle cells need more oxygen and nutrients during exercise to release more of this.
What is energy?
A student claims all living things have many cells. Use one example to disprove the claim.
What is bacteria, because it is a living organism made of one cell?
Predict two problems that could occur if a cell membrane is damaged.
What are needed materials may not enter properly and wastes may not be removed properly?
Explain how the digestive system provides materials that cells need.
What is it breaks food down so nutrients can be absorbed and transported to cells?
Two students hear the same alarm, but only one recognizes it as the school fire alarm. This stored information helps explain their different responses.
What is memory from previous experiences?
Predict what might happen if muscle cells do not receive enough oxygen during exercise.
What is the student may become tired and have difficulty continuing to run?
A scientist observes cells in two samples. What additional information could help explain why the cells have different shapes?
What are the functions or jobs of the cells?
Explain why the nucleus alone cannot keep a cell functioning. Name two other cell parts and their jobs.
What are the cell membrane, which controls what enters and leaves, and mitochondria, which release usable energy from food?
Predict what could happen to an organ system if many cells in one of its organs were damaged.
What is the organ may function poorly, interfering with the body system that depends on it?
A cyclist sees a car approaching and brakes. Explain how sensory receptors and the brain contribute to this response.
What are the eye receptors detect the car, send information to the brain, and the brain helps coordinate braking?
Explain how the respiratory system, circulatory system, and muscle cells work together during running.
What is the respiratory system brings in oxygen, the circulatory system carries it to muscle cells, and the cells use it to release energy for movement?