Who Am I?
I am the control center of the cell. I contain the cell’s DNA and direct many of the cell’s activities
Nucleus
A person shivers when they are cold. Explain how this demonstrates a characteristic of life.
It demonstrates homeostasis because the body responds to maintain a stable internal temperature.
Which type of cell usually has a large central vacuole?
Plant Cell
A group of muscle cells works together to contract and create movement.
Tissue
After eating a meal, nutrients enter the bloodstream. Which two systems are interacting?
Digestive and circulatory systems
I am the organelle that controls what enters and leaves the cell. I act like a security guard for the cell.
Cell Membrane
What are the three main parts of the Cell Theory?
All living things are made of cells; cells are the basic unit of life; all cells come from pre-existing cells.
What is one major difference between animal and plant cells?
Plant cells have a cell wall and chloroplasts; animal cells do not.
The stomach contains muscle tissue, connective tissue, and epithelial tissue. What does this combination create?
An organ
Which two systems work together to allow the body to move?
Muscular and skeletal systems
I am responsible for releasing usable energy from food through cellular respiration.
Mitochondria
A scientist discovers a cell with a nucleus, mitochondria, and a cell membrane. Which type of cell is it?
Eukaryotic Cell
What structure gives plant cells extra support and helps them maintain their shape?
Cell wall
The heart, blood vessels, and blood work together as part of which organ system?
Circulatory system
Which two body systems work together to get oxygen into the blood and transport it to cells?
Respiratory and circulatory systems
I am found in plant cells. I use sunlight, water, and carbon dioxide to make glucose during photosynthesis.
Chloroplast
Two cells both have DNA, ribosomes, cytoplasm, and a cell membrane. One has a nucleus and one does not. What is the key difference between them?
Eukaryotic cells have a nucleus; prokaryotic cells do not.
Why does a plant cell need both a cell membrane and a cell wall?
The cell membrane controls what enters and leaves the cell, while the cell wall provides support and protection.
What is the correct order of organization from simplest to most complex?
Cell → Tissue → Organ → Organ System → Organism
Why does the nervous system need to interact with many other body systems?
It controls the flow of oxygen, nutrients, hormones, and wastes between body systems and cells.
I break down old cell parts and waste materials. Think of me as the cell’s recycling and cleanup crew
Lysosome
A person sweats when their body becomes too hot. What characteristic of life does this demonstrate?
Homeostasis
A scientist observes a cell with a nucleus, cell membrane, cytoplasm, and mitochondria but no cell wall or chloroplasts. What type of cell is it?
Animal cell
Why must different organs work together in an organ system?
They work together to perform specific functions needed to keep the organism alive and maintain homeostasis.
During exercise, your body temperature increases and you begin to sweat. Which body system helps produce sweat, and what is the purpose?
Integumentary system; sweating helps cool the body and maintain homeostasis.