I contain the cell’s DNA and control most cellular activities.
What is the nucleus?
This organelle releases usable energy from glucose through cellular respiration.
What is the mitochondrion?
These two types of cells both contain a nucleus, cytoplasm, and mitochondria.
What are plant and animal cells?
This vital sign measures how many times the heart beats in one minute.
What is heart rate or pulse rate?
During exercise, this vital sign increases to deliver more oxygen and nutrients to cells.
What is heart rate?
I am the jelly-like substance where many chemical reactions occur.
What is the cytoplasm?
These tiny structures assemble proteins using instructions from the cell.
What are ribosomes?
This rigid outer layer supports and protects plant cells.
What is the cell wall?
This vital sign measures how many breaths a person takes in one minute.
What is respiratory rate?
During exercise, breathing rate increases because cells require more of this gas for cellular respiration.
What is oxygen?
I control which substances enter and leave the cell.
What is the cell membrane?
This membrane network helps manufacture and transport proteins because ribosomes are attached to it.
What is the rough endoplasmic reticulum?
This organelle is found in plant cells but not animal cells and captures sunlight.
What is the chloroplast?
A device placed on a finger can measure this percentage of oxygen carried in the blood.
What is oxygen saturation, or SpO₂?
If mitochondria stop functioning properly, cells will struggle to produce enough of this usable energy molecule.
What is ATP?
I modify, sort, and package proteins for transport.
What is the Golgi apparatus?
This organelle stores water and dissolved substances and helps a plant cell remain firm.
What is the central vacuole?
Compared with plant cells, these cells usually have smaller vacuoles and no cell wall.
What are animal cells?
In a blood-pressure reading of 120/80 mmHg, the top number represents this pressure.
What is systolic pressure?
If the cell membrane could no longer control movement into and out of the cell, the cell would struggle to maintain this stable internal condition.
What is homeostasis?
I contain digestive enzymes that break down waste and damaged cell parts.
What is the lysosome?
This organelle contains chlorophyll and converts light energy into chemical energy.
What is the chloroplast?
A cell has a nucleus, mitochondria, chloroplasts, and a large central vacuole. Identify the type of cell and give one piece of evidence.
What is a plant cell? Evidence could include chloroplasts or a large central vacuole.
A student’s temperature is 39°C, heart rate is elevated, and breathing rate is faster than usual. These changes may indicate this type of body response.
What is a response to fever, infection, illness, or stress?
After running, a student’s heart rate and respiratory rate increase and later return to normal. Explain how this demonstrates interaction between body systems.
The respiratory system brings in more oxygen, while the circulatory system transports it to cells. Both rates later decrease as the body returns to homeostasis.