Cells

Cells

Plant
1. A plant grows through the process of photosynthesis which needs light to maintain the process of growth.
  1. •Both plant and animal cells include nucleus, cell membrane and mitochondria, which are part of their structure.
  2. •The main function of a plant cells is to carry all processes that are needed to facilitate plant life.
2. The plant cell also houses different kind’s structural properties to an animal cell yet still contains some similarities.
  1. A plant cell can be included in the category of eukaryotic cells. These are the cells that have a well-defined nucleus.
    1. •The structure of the plant cell includes cellulose, chloroplasts, chlorophyll and vacuoles. Plasma membrane, nucleus, nucleolus and mitochondria are also included in the structure of a plant cell. The endoplasmic reticulum, Golgi apparatus and microtubules are other features of the plant cell.
3. Cell walls are made up of cellulose, which humans cannot digest. These walls are visible under a microscope and resemble a thick outline around the plant cells.
  1. There are both similarities and differences between plant and animal cells. They are both basic units of life, which compose all living organisms. However, plant and animal cells may have a different function and a different structure.
4. •There are two types of reproduction in plants. They can be asexual, when the cell splits in two, and sexual, when two cells combine to create one living cell.
  1. •Plant cells have cell walls in which they can store water.
5. •A plant cell is the structural and functional unit for all plant organisms.
  1. Through photosynthesis sunlight, water and carbon dioxide are transformed into energy, water and oxygen. This is an important process for the support of all forms of life.
  2. •Cell walls of plants are made up of cellulose, hemicellulose and pectin.
Bacteria
1. Bacteria are the simplest of creatures that are considered alive.
2. Flagella - a small tail like shape that allows the cell to swim through liquids.
3. They are prokaryotic cells
  1. Some help plants absorb nitrogen (N) from the soil.
  2. Some cause diseases like food poisoning.
    1. There are more bacterial cells in the body than human cells.
  3. Some bacteria even live inside the stomachs of cows to help them break down cellulose.
  4. Bacterial cells are much smaller than plant or animal cells. They were first seen under a microscope
4. Spherical bacteria are in the shape of little spheres or balls. They are arranged in rows of circles.
  1. Bacterial cells are much smaller than plant or animal cells. They were first seen under a microscope in 1676
5. Spiral shaped bacteria twist a little. Think about balloon animals for these shapes. It's like a balloon animal in the shape of a corkscrew.
  1. Bacterial cells do not contain chloroplasts (like animal cells but unlike plant cells). In addition, unlike animal and plant cells, bacterial cells lack: A 'true' nucleus Mitochondria
  2. Instead of a cell nucleus containing chromosomes, the DNA in bacterial cells is arranged in a single circular strand in the cytoplasm.
Animal
1. The cell membrane controls what substances leave and enter the cell.
  1. Animal cells have an inbuilt self-destruct system which is resorted to when a cell becomes damaged beyond repair or gets severely infected.
2. The vacuole stores molecuels that are needed and isolates harmful material.
3. The smallest unit of life.
  1. The cell wall stops the cell from bursting and maintains the shape of the cell.
    1. Animal cells are nano chemical factories that are completely self-sufficient! The cells themselves manufacture everything that constitutes them.
  2. Contain DNA instead of genetic material.
    1. The size of a single, random animal cell can fall anywhere between 1 and 100 micrometers.
4. The mitochondria produces energy the cell needs through respiration.
5. The nucleus is the control centre of the cell.
  1. Cells are not the tiniest particles on earth! Each cell is made up of a number of even tinier particles known as atoms
6. The cytoplasm is where chemical reactions are made.
  1. Animal cells usually have an irregular shape.

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	Erstellt von Amy Drake vor etwa 9 Jahre