Discuss how a multicellular organism would use specialized cells to digest food, whereas a unicellular organism would not.
**Think about how a human eats a bowl of spaghetti and digests it. Now compare that to how an amoeba or bacterial cell would digest "food". How are the two processes different?
Sentence starters to help:
1. When a human digests food it would use..... When an amoeba or other single-celled organism digests food it would use...
2. When a multicellular organism, like a human, digests food it goes through a process involving... When a bacterial cell or other unicellular organism digests food it does not require....
(6 points)
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When a human digests food it would use specialized cells in the digestive system, such as stomach cells, intestinal cells, and pancreatic cells. These cells work together in a coordinated manner to break down the food into smaller molecules that can be absorbed by the body. In contrast, when an amoeba or other single-celled organism digests food, it does not have specialized cells for this purpose. Instead, the food is engulfed by the cell through a process called phagocytosis, where the cell forms a vesicle around the food particle and breaks it down internally.
When a multicellular organism, like a human, digests food it goes through a process involving mechanical digestion (chewing), chemical digestion (enzymatic breakdown), and absorption of nutrients in the small intestine. These processes are carried out by different specialized cells, each with a specific function in the digestive process. However, when a bacterial cell or other unicellular organism digests food, it does not require these complex processes. Instead, the cell can directly absorb nutrients from the environment through simple diffusion or active transport mechanisms. This simplifies the digestion process for unicellular organisms, making it more efficient for their smaller size and simpler structure.
Select the items that are characteristics of life.(5 points)
Responses
Has a brain
Has a brain
Reproduces
Reproduces
Has blood
Has blood
Uses and creates energy (metabolism)
Uses and creates energy (metabolism)
Is able to move
Is able to move
Is made of cells
Is made of cells
Maintains homeostasis
Maintains homeostasis
Responds to its environment
Reproduces
Uses and creates energy (metabolism)
Is made of cells
Maintains homeostasis
Responds to its environment
Fill in the blanks below to complete the three parts of the cell theory.(3 points)
Put responses in the correct input to answer the question. Select a response, navigate to the desired input and insert the response. Responses can be selected and inserted using the space bar, enter key, left mouse button or touchpad. Responses can also be moved by dragging with a mouse.
1. All living things are made of .
2. The cell is the basic unit of Response area.
3. All cells come from cells.
1. All living things are made of cells.
2. The cell is the basic unit of structure and function.
3. All cells come from existing cells.
the three options for the second part are dead, life, and molecules.
The cell is the basic unit of life.
Use the table below to identify characteristics and structures found in plant cells, animal cells, or both (check BOTH plant and animal).(8 points)
Plant Cells Animal Cells
Has a round or irregular shape.
Contains chloroplasts.
Has a nucleus.
Contains a cell wall.
Has a square and rigid shape.
Contains mitochondria.
Plant Cells
- Contains chloroplasts.
- Contains a cell wall.
Animal Cells
- Has a round or irregular shape.
- Has a nucleus.
- Contains mitochondria.
Both Plant and Animal Cells
- Has a square and rigid shape.