9 Questions
What is the color of Phaeophytin?
Yellow-grey
Which pigment is responsible for the yellow-brown color?
Xanthophyll
What is the color of Chlorophyll a?
Bright green to blue green
Which pigment has a yellow-green to olive green color?
Chlorophyll b
What is the color of Yellow Carotene?
Yellow
What is the main function of the middle lamella?
To cement cells together
What is the term used to describe the movement of chloroplasts in a cell?
Cytoplasmic streaming
Which organelle is responsible for storing starch in potato cells?
Amyloplast
What is the function of the nucleolus?
To transcribe RNA
Study Notes
Cell Structure and Components
- Vacuoles are fluid-filled spaces not occupied by cytoplasm.
- Robert Hooke discovered the cell, and Robert Browne discovered the nucleus.
- The nucleolus is located inside the nucleus.
Cell Wall and Composition
- The cell wall can be stained using an iodine solution, which also stains the vacuole and nucleus.
- The organized arrangement of cells in the cell wall of Allium cepa (onion) is due to cellulose.
- The cementing substance between cells is called the middle lamella.
- The middle lamella is composed of calcium, pectins, and magnesium.
Cellular Movement and Organelles
- The movement of green bodies (chloroplasts) is called cytoplasmic streaming or cyclosis.
- In this movement, chloroplasts move in a clockwise direction.
Specific Organelles and Plant Examples
- Chromoplasts are found in tomatoes.
- Amyloplasts, which store starch, are found in potatoes.
- The nucleus is visible in onions.
- Chloroplasts are present in Hydrilla verticillata.
- Tradescantia spathacea lacks vacuoles.
This quiz covers the different types of pigments found in photosynthesis, including their distinct colors and characteristics.
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