This organelle controls which substances enter and leave a cell
What is cell membrane?
This organelle allows plants to capture light energy to make food
What is chloroplast?
The smallest living unit of an organism
What is a cell?
This body system breaks down food so nutrients can be absorbed
What is digestive system?
After eating lunch, nutrients from digested food enter the bloodstream and travel to cells throughout the body. There are two body systems are working together
What is digestive and circulatory systems?
This organelle contains genetic information and directs many cell activities
What is nucleus?
This process allows plants to use light energy to produce food
What is photosynthesis?
The level of organization that is formed when similar cells work together to perform a function
What are tissues?
This body system protects the body by recognizing and fighting disease-causing organisms
What is the immune system?
A student touches a hot pan and immediately pulls their hand away. Which two body systems work together to make this happen
What is nervous and muscular systems?
A cell needs to release usable energy from food to carry out its activities. Which organelle is responsible for this.
What is mitochondrion/mitochondria?
A plant is placed in a dark room for several days. Which process would be directly reduced, and why
What is photosynthesis, because the plant needs light energy to make food?
Several tissues combine to form the stomach. The level of organization that the stomach represents
What is an organ?
A person is breathing rapidly after running. This body system brings oxygen into the body and removes carbon dioxide
What is the respiratory system?
During a basketball game, a player's breathing and heart rate increase as they run down the court. Explain how the respiratory and circulatory systems work together to support the player's muscles.
What is the respiratory system brings oxygen into the lungs, and the circulatory system carries oxygen-rich blood to the muscles?
A scientist observes a cell that has a nucleus, mitochondria, and cytoplasm, but no cell wall or chloroplasts. Is this most likely a plant cell or an animal cell? Explain how you know.
What is an animal cell? Because it does not have a cell wall or chloroplasts, which are structures found in plant cells
Both plant and animal cells need usable energy. Explain how mitochondria help both types of cells.
What is mitochondria carry out cellular respiration, releasing usable energy from food molecules?
A student claims that the heart and the circulatory system represent the same level of organization. Explain why this is incorrect.
What is the heart is an organ, while the circulatory system is an organ system made of multiple organs working together?
A student has difficulty breathing and begins feeling tired because their body is not getting enough oxygen. Which body system is most directly affected, and what is its normal function?
What is the respiratory system? Its function is to bring oxygen into the body and remove carbon dioxide.
A student gets a cut while playing outside. Bacteria enter the wound, and white blood cells travel to the injured area. Identify the two body systems working together and explain how they help protect the student.
What is immune and circulatory systems?
The immune system recognizes and fights bacteria, while the circulatory system transports white blood cells through the blood to the affected area.
A plant cell's mitochondria stop functioning properly. Even though the cell can still absorb sunlight, explain why it may struggle to survive.
The mitochondria help release usable energy from food through cellular respiration. Without functioning mitochondria, the cell would struggle to obtain enough usable energy for its activities, even if photosynthesis continues.
A scientist discovers a cell containing chloroplasts, mitochondria, a nucleus, and a cell wall. Identify the type of cell and explain how two of these structures support its survival.
What is plant cell? Chloroplasts make food through photosynthesis, and mitochondria release usable energy through cellular respiration.
A scientist studies muscle cells, muscle tissue, the heart, the circulatory system, and a human. Arrange these examples from simplest to most complex and explain the pattern.
What is muscle cells → muscle tissue → heart → circulatory system → human. Each higher level is composed of smaller levels working together?
A patient's kidneys are not removing waste products from their blood properly. Explain which body system is malfunctioning and how this could affect homeostasis.
What is the excretory system? If the kidneys cannot filter wastes properly, harmful substances can build up in the blood, disrupting the body's internal balance.
After drinking several bottles of water, a student eventually needs to use the restroom. The kidneys filter the blood, the bladder fills, and the brain signals that it's time to urinate. Identify THREE body systems involved and explain how they work together to maintain homeostasis.
What are circulatory, excretory, and nervous systems?
The circulatory system carries blood to the kidneys, the excretory system filters wastes and regulates water balance, and the nervous system detects bladder fullness and helps coordinate urination.