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How are cells structured? Learn about the size and function of plant and animal cells for GCSE Combined Science, AQA.
- Comparing Sizes
The diagram shows the size of three organisms, different...
- Eukaryotes and Prokaryotes
Eukaryotic cell: Prokaryotic cell: Size: Most are 5 μm – 100...
- Plant and Animal Cells
There are many different types of cells in animals. Each...
- Video
Cell structure - AQA Video. Organisms are made up of cells....
- Comparing Sizes
- Plant Cell Characteristics
- Organelles in A Plant Cell and Their Functions
- A Closer Look at Plastids
- Key Differences Between Plant and Animal Cells
- Plant Cells vs Bacterial Cells
- Plant Cell vs Fungal Cell
- Types of Plant Cells
- Types of Plant Tissues
- References
Plant cells are eukaryotic. In other words, each cell has a true nucleus and membrane-bound organelles. However, plant cells have characteristics that distinguish them from other eukaryotic cells: Cell Wall: Unlike animal cells, plant cells have a rigid cell wall outside the plasma membrane. This cell wall is primarily composed of cellulose, a comp...
Plant cells comprise several organelles, each with unique functions vital to the cell’s operation: 1. Cell Wall:The cell wall is a rigid layer that provides support, protection, and shape to the cell. It consists mainly of cellulose. 2. Plasma Membrane:This is a semi-permeable membrane that controls the movement of substances in and out of the cell...
While most people know plants cells contain chloroplasts, they may not realize there are other types of plastids in cells. Plastids are a group of plant cell organelles that perform a variety of essential functions. Like mitochondria, plastids have a double-membrane envelope and their own DNA and ribosomes. Here are some key plastids: 1. Chloroplas...
While plant and animal cells share many similarities as eukaryotes, they also exhibit notable differences: Cell Wall:Unlike plant cells, animal cells do not have a cell wall. This absence gives animal cells a flexible shape, allowing them to form structures such as neurons and muscle cells. Vacuoles:Animal cells contain smaller vacuoles and often m...
While plant cells are eukaryotic, bacterial cells are prokaryotic. This leads to several key differences between the celltypes: 1. Nucleus:Plant cells have a well-defined nucleus that houses their DNA. In contrast, bacterial cells do not contain a nucleus. Instead, their DNA is in a region called the nucleoid. 2. Size:Plant cells are generally much...
While both plant and fungal cells are eukaryotic, there are several key differences between them: 1. Cell Wall:The cell walls of plant cells contain cellulose, while fungal cell walls mainly consist of chitin. 2. Nutrition:Plant cells are autotrophic and produce their own food via photosynthesis. Fungal cells, on the other hand, are heterotrophic a...
There are different types of plant cells, each with specific structures and functions. These cells further organize into tissues that perform coordinated functions. 1. Parenchyma Cells:These are the most common type of plant cell. They are involved in many functions such as photosynthesis, storage, and tissue repair. Parenchyma cells typically have...
There are three main types of differentiated plant tissue, plus there is undifferentiated tissue: 1. Dermal Tissue:This is the outermost layer of the plant (the “skin”), which serves as a protective layer. It includes epidermal cells, guard cells (which regulate the opening and closing of stomata for gas exchange), and in some cases, specialized ce...
Keegstra, K. (2010). “Plant cell walls”. Plant Physiology. 154 (2): 483–486. doi:10.1104/pp.110.161240Lew, Kristi; Fitzpatrick, Brad (2021). Plant Cells(3rd ed.). Infobase Holdings, Inc. ISBN 978-1-64693-728-8.Raven, J.A. (1987). “The role of vacuoles”. New Phytologist. 106 (3): 357–422. doi:10.1111/j.1469-8137.1987.tb00149.xRaven, P.H.; Evert, R.F.; Eichhorm, S.E. (1999). Biology of Plants(6th ed.). New York: W.H. Freeman. ISBN 9780716762843.- Cell Wall. It is the outermost, protective layer of a plant cell having a thickness of 20-80 nm. Cell walls are made up of carbohydrates such as cellulose, hemicellulose, and pectin and a complex organic polymer called lignin.
- Plastids. They are double membrane-bound organelles that have their own genetic material. Plastids are mainly of three types: a) Chloroplasts: Found in the green parts of a plant and algae that contain the photosynthetic pigment, chlorophyll.
- Central Vacuole. It is the large vesicle that make up almost 30 to 80% of the total plant cell volume. The central vacuole is often the largest organelle in the cell that is filled with fluid, ions, enzymes, and other molecules.
- Cell Membrane or Plasma Membrane. It is a thin, biological membrane having a thickness of 7.5-10 nm that separates the interior of the cell from the outside environment.
Test. Pages. Leaf structure. The structure of a leaf has adaptations so that it can carry out. photosynthesis. effectively. A leaf needs: a way to transport water to the leaf, and. glucose....
The basic structure of a plant cell is shown below. Photosynthesis relies on many structures in the cell all working together, each playing its role. The diagram below shows the same plant...
Figure 3.1.2.1 3.1.2. 1): This figure show the major organelles and other cell components of a typical eukaryotic plant cell. The plant cell has a cell wall, chloroplasts, plastids, and a central vacuole—structures not in animal cells. Most cells do not have lysosomes or centrosomes.
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Plant Cells. Figure 10.1.1 10.1. 1: A diagram of a plant cell. Plants cells differ from animal cells in that they have a cell wall (which is glued to adjacent cells by the middle lamellae), a large central vacuole, and chloroplasts. Image by LadyofHats, Public domain, via Wikimedia Commons.
