Cells & Tissues
What is the smallest structural unit of life that can function independently?
What is a Cell
Which plant tissue acts like skin, protecting the plant and keeping water in?
What is Dermal Tissue
Which organ system works primarily to move blood and materials around the body?
What is the circulatory system
What type of sensory receptor detects chemical stimuli (like smell or taste)
What is the chemical receptor
What is the term for the process by which organisms keep internal conditions stable?
What is Homeostasis
Which level comes after the cell and before the organ in the levels of biological organization?
What is Tissue
What plant organ is the main site of photosynthesis and gas exchange?
What is a leaf
Which two body systems work together to keep carbon dioxide levels low in humans?
What is the circulatory and respiratory systems
Which sensory receptors in the eyes detect color and detail?
What are cones
When do you know that a body has returned to homeostasis?
What is when the body temperature and heart rate return to normal
Name the tissue type that carries signals using electrical impulses.
What is Nervous Tissue
Which plant structure anchors the plant and stores nutrients?
What is the roots
Name the organ that pumps blood to the brain, lungs, liver, and stomach.
What is the heart
From the corn kernel experiment, in which direction do roots grow relative to gravity?
What is the Roots show positive gravitropism: they grow toward gravity (down).
Applying knowledge: Explain why roots must respond to environmental changes. (oral response)
Roots grow toward water and nutrients and adjust growth when conditions change. This allows the plant to access the resources needed for survival and growth.
Which animal tissue lines organs, protects surfaces, and helps absorb or secrete substances?
How do roots and leaves work together to provide a plant with the substances it needs? (two-sentence answer)
Example answer: "Roots absorb water and dissolved minerals from soil. Leaves use sunlight to make food (photosynthesis) and exchange gases needed for growth.
If the heart muscle is damaged, explain one way this could affect another organ system (use circulatory example).
What is: Damaged heart muscle reduces pumping ability, lowering blood flow to the lungs and other organs; this can reduce oxygen delivery to muscles and the brain, impairing their function.
When the body of an animal is under stress, what are two physical responses that the body has to the stressor?
What is the heart rate increase and body temperature increase
Apply knowledge and predict: A student orients four corn kernels in different directions in test tubes. Predict the direction roots will grow and explain why.
Roots will grow downward regardless of initial kernel orientation because roots respond to gravity (positive gravitropism) and moisture; so in each tube, the root will curve to grow downward toward gravity and available moisture.
Describe how cells, tissues, organs, and organ systems depend on one another.
Cells form tissues, tissues form organs, and organs work in organ systems. If one level fails, the higher levels cannot perform their functions properly.
A vine grows from the forest floor to the tree top, and leaf-cutter ants live on the forest floor. For both the vine and the ants, what needs do they each have? Choose from the following: water, nutrients from soil, energy from sunlight, gases from air.
Vines: water, nutrients from soil, energy from sunlight, gases from air
leaf-cutter ants: water, nutrients from soil, gases from air
Sequence these from simplest to most complex for the respiratory system: organs, tissue, cell, organ system.
cell, tissue, organ, organ system.
Sort these observed actions into sensory response or memory response: heart rate increases when held, body temperature increases, mice hide away from the door, mice approach the door expecting a treat.
Sensory response: heart rate increases, body temperature increases.
Memory response: mice hide away from the door, mice approach the door expecting a treat.
What is the process of sweating to cool the body down an example of?
What is homeostasis.