24 Questions
What is the main function of the cell wall in a plant cell?
To give the cell a fixed shape and help the plant stay upright
What is the function of chloroplasts in plant cells?
To facilitate photosynthesis
What is the main function of the vacuole in a plant cell?
To maintain cell firmness
What is the function of the nucleus in a plant cell?
To store genetic material
What is the function of the cytoplasm in a plant cell?
To carry out chemical reactions
What is the main difference between plant cells and animal cells?
Plant cells have additional structures such as chloroplasts
What is the function of a root hair cell?
To absorb more water from the soil by osmosis
What is the main function of the jelly-like material found in cells?
To carry out chemical reactions
What is the term for cells that have a nucleus?
Eukaryotic
What is the function of the cell membrane in animal cells?
Lets things move in and out of the cell
What is the purpose of the cytoplasm in animal cells?
Carries out chemical reactions
What is the term for cells that lack a nucleus?
Prokaryotic
How do you calculate the total magnification of a microscope?
Multiply the ocular and objective magnifications
What is the function of the nucleus in animal cells?
Controls the activities of the cell
How many objective lenses are mentioned in the text?
3
What is the magnification of the eyepiece mentioned in the text?
10
What is the primary function of the cell membrane?
To regulate the movement of substances in and out of the cell
Where does photosynthesis occur in a plant cell?
Chloroplast
What is the role of mitochondria in a cell?
To release energy through respiration
What is the function of the cell wall in a plant cell?
To provide structural support and strengthen the plant
Where does protein synthesis occur in a cell?
Ribosomes
What is the role of chlorophyll in a plant cell?
To absorb light energy for photosynthesis
Which part of a plant cell is not present in an animal cell?
Cell wall
What is the function of the ribosomes in a cell?
To synthesize proteins
Study Notes
Compound Microscope Structure
- The microscope has three main parts: eyepiece, body tube, and arm
- The eyepiece has a magnification of 10x
- There are three objective lenses: scanning, low, and high
- Total magnification is calculated by multiplying the eyepiece magnification by the objective lens magnification
Cell Classification
- Cells with a nucleus are eukaryotic (plants, animals, fungi, and protists)
- Cells without a nucleus are prokaryotic (bacteria and archaeans)
Animal Cells
- Three main parts of an animal cell: cell membrane, cytoplasm, and nucleus
- Cell membrane controls what enters and leaves the cell
- Cytoplasm is a liquid where chemical reactions occur
- Nucleus is the control center of the cell
Plant Cells
- Have additional parts compared to animal cells: cell wall, vacuole, and chloroplasts
- Cell wall provides a fixed shape and support
- Vacuole contains cell sap, which keeps the cell firm
- Chloroplasts contain chlorophyll, which enables photosynthesis
Cell Organelles
- Cytoplasm is a jelly-like material where chemical reactions occur
- Nucleus contains genetic material and controls the cell's activities
- Cell membrane is selectively permeable and controls the movement of substances
- Chloroplasts contain chlorophyll for photosynthesis
- Mitochondria are the site of energy release during respiration
- Ribosomes are responsible for protein synthesis
- Cell wall provides support and is made of cellulose fibers
Identify the different components of a microscope, including the eyepiece, objective lens, and stage, and understand how to use the microscope to achieve different magnifications.
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