Hierarchy
What is the smallest level in the hierarchical organization of living things?
Atom
Which process helps cells maintain homeostasis?
A. Sleeping
B. Growing taller
C. Removing waste
D. Changing color
C. Removing waste
Which statement about cells is NOT part of the cell theory?
A. All organisms are made of cells
B. Cells are the basic unit of life
C. Cells create energy from sunlight
D. All cells come from pre-existing cells
C. Cells create energy from sunlight
How do cells obtain energy to function?
From extracting energy from food
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Koda
Which level of organization consists of similar cells working together?
Tissues
What is homeostasis in cells?
Maintaining stable internal conditions
When cells reproduce, what is ALWAYS true according to cell theory?
A. They combine with neighboring cells
B. They require sunlight
C. They come from other pre-existing cells
D. They create new organisms
C. They come from other pre-existing cells
What is the jelly-like substance that fills the cell called?
Cytoplasm
What makes plant cells different from animal cells?
Only plant cells have chloroplasts and a cell wall
What level of organization comes after tissues in the hierarchy?
Organs
Which is a function that ALL cells must perform to stay alive?
A. Produce oxygen
B. Create chlorophyll
C. Extract energy from food
D. Build cell walls
C. Extract energy from food
What is the main function of mitochondria in a cell?
Produce energy
What is the main function of the cell membrane?
Control what enters and exits the cell
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Soda pop
What level of classification describes the sum of all the other levels working together?
Organism
Which organelles are known as the "powerhouse" of the cell?
Mitochondria
What is the primary function of chloroplasts?
Produce food through photosynthesis
Which organelle is responsible for storing water and other materials in the cell?
Vacuole
What is Mr. Schiller's favorite color?
Blue
Which sequence correctly shows the hierarchical organization from smallest to largest?
Atom → Molecule → Cell → Tissue → Organ→ Organ system → Organism
Give two examples of how the body keeps itself balanced.
Which structure contains and protects the cell's genetic material?
Nucleus
Which structure gives plant cells their rigid shape?
Cell wall
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