Chapter 7.1- 7.2 quiz
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- What is the cell wall
- The cell wall provides support and protection for the cell.
- A nucleus surrounded by double-membrane layer
- nuclear envelope
- Who identified the nucleus in 1831
- Robert Brown, a Scottish botanist
- Produced by rough endoplasmic reticulum into a stack of membranes. enzymes attach carbs and lipids to proteins
- golgi apparatus
- Have cell membranes and do contain nuclei
- Eukaryotes
- What performs important celluar functions
- organelles
- small organelles filled with enzymes.
- Lysosomes
- Who concluded all animals are made of cells
- Another German scientist, Theodor Schwann
- Consists of DNA bound to protein and granular material
- chromatin
- Have cell membranes but doesn't have nuclei. All bacteria have it.
- Prokaryotes
- Use energy from food to make high-energy compounds that the cell can use to power growth, development, and movement
- mitochondria
- A material inside the cell membrane
- cytoplasm
- Many cells have strong layer around the membrane
- cell wall
- cells store materials such as water, and proteins
- vacuoles
- When was the first lenses used in the 1500's by merchants
- Europe
- Who used the first light microscopes to look at thin slices of plant tissues and call the chambers cells
- Robert Hooke, a English physicist in 1665
- Who was the first person to use a microscope and to see tiny organisms
- Anton van Leeuwenhoek, a Dutch scientist in the 1600's
- Foundin plants and some organisms. Use energy from the sun to make energy-rich food from molecules in a process- photosynthesis
- Chloroplasts
- Who studied cell reproduction and said " where a cell exists, there must have been a preexisting cell."
- Rudolf Virchow, a German physician
- Long, thin fibers that function the movement and support the cell. Have about 7 manometers in diameter. Produce tough flexible framework that supports the cell
- microfilaments
- A thin flexible barrier around the cell
- Cell membrane
- Small particles made of RNA and protein
- ribosomes
- What is the meaning of cells
- the basic units of all forms of life
- What is the cell theory
- . All living things are composed of cells . Cells are basic units of structure and function in living things . new cells are produced from existing cells.
- What does the nuclei contains a small dense region
- nucleous
- Who concluded all plants are made of cells
- Matthias Schleiden in 1838, a German scientist
- Eukaryotic cells contain internal membrane system, and organelle of components of the cell membrane are assembled and some proteins are modified
- Endoplasmic reticulum
- A large structure that contains cell's genetic material and controls activities, cell processes, and hereditary info of DNA
- nucleus
- When a cell divides, a chromatin trades and contains genetic info from one generation to the next
- chromosomes
- Holow tubes of protein about 25 nanometers in diameter. Maintain cell shape and serve as tracks
- microtubules
- What is a cytoskeleton
- A network of proteins taht helps the cell to maintain the shape and involved with many forms of cell movement