10 Questions
What is the function of chloroplasts in plant cells?
Chloroplasts contain the green pigment chlorophyll that gives plants their green color.
Name the three types of plastids found in plant cells.
- Chloroplast, 2. Chromoplast, 3. Leucoplast
What pigments do chromoplasts contain?
Chromoplasts contain red, orange, and yellow pigments.
Where are chloroplasts typically found in a plant?
Chloroplasts are found only in the green parts of the plant.
What is the main function of leucoplasts?
Leucoplasts store food, mostly in the form of starch.
Define diffusion in the context of movement across membranes.
Diffusion is the movement of molecules from a region of high concentration to a region of low concentration until equilibrium is reached.
Explain the concept of selectively permeable membranes.
Selectively permeable membranes allow certain substances to pass through while preventing others based on their chemical nature and size.
What structure in chloroplasts contains chlorophyll?
The grana in chloroplasts contain chlorophyll.
What role does the vacuole play in plant cells?
The vacuole absorbs and releases water in response to changes in the cytoplasm and around the cell.
How do molecules enter or leave cells?
Molecules enter or leave cells by diffusion, osmosis, or active transport.
Explore the significance of enzymes as biological catalysts in regulating and facilitating chemical reactions within cells. Learn about the factors influencing enzyme activity such as temperature and pH levels.
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