All living things must carry out certain functions and possess certain structures to survive, grow, and reproduce. The following chart illustrates how humans possess certain structures to carry out these critical functions. Fill in the plant structures that correspond to the human structures listed in the chart.
Function Human Structure Plant Structure
1. Gas exchange 1. lungs 1.Stoma
2. Circulation 2. Blood vessels 2.Xylem
3. Water intake 3. mouth 3.Roots
4. Energy intake 4. mouth 4.Chloroplasts
5. Internal support 5. skeleton 5.Stem
6. Energy Storage 1. Fat cells 1. Vacuole
7. Energy Conversion 7. Mitochondria 7. Leaves
To fill in the plant structures that correspond to the human structures listed in the chart:
1. Gas exchange:
- Human Structure: Lungs
- Plant Structure: Stoma (plural: stomata)
Explanation: Plants have small openings on their leaves called stomata, which allow for the exchange of gases such as oxygen and carbon dioxide.
2. Circulation:
- Human Structure: Blood vessels
- Plant Structure: Xylem
Explanation: Xylem is a plant tissue that transports water and dissolved minerals from the roots to the rest of the plant. It functions similarly to how blood vessels in humans transport blood.
3. Water intake:
- Human Structure: Mouth
- Plant Structure: Roots
Explanation: Plant roots absorb water and nutrients from the soil, similar to how humans intake water through their mouth.
4. Energy intake:
- Human Structure: Mouth
- Plant Structure: Chloroplasts
Explanation: Chloroplasts are organelles within plant cells where photosynthesis occurs. During photosynthesis, plants convert sunlight, water, and carbon dioxide into energy-rich molecules. This is analogous to how humans intake energy through food via their mouth.
5. Internal support:
- Human Structure: Skeleton
- Plant Structure: Stem
Explanation: The stem of a plant provides internal support and structure, helping to hold the plant upright, similar to how the skeleton in humans provides support and shape to the body.
6. Energy Storage:
- Human Structure: Fat cells
- Plant Structure: Vacuole
Explanation: The vacuole is a large membrane-bound organelle found in plant cells. It can serve as a storage site for various substances, including water, nutrients, and even waste products. This can be considered analogous to how fat cells in humans store energy.
7. Energy Conversion:
- Human Structure: Mitochondria
- Plant Structure: Leaves
Explanation: The leaves of a plant contain chloroplasts, which are responsible for converting light energy from the sun into chemical energy through the process of photosynthesis. This process is similar to how mitochondria in humans convert nutrients into energy.