SCIENCE 4THQ

• Robert Hooke - discovered cells in 1665. With the use of a microscope

  
• Felix Dujardin - French Biologist who discovered cells in wood, leaves, and roots on the year 1835

  
• Matthias Jakob Schleiden - A German biologist that proposed the hypothesis that all plants are made up of cells in the year 1838

  
• Theodor Schwann - A German Zoologist who extended his hypothesis by proposing that all animals are made up of cells. He also proposed the life processes of all organisms began with cells.

  
• Rudolf Virchow - He provided evidence that cells reproduce to form new cells. He found cells in bone and connective tissue.

  
• The cell is a structural and functional unit of life. It is also known as the Building Blocks of Life.
• The cell is made up of two third of a cell, and the rest is a mixture of lipids, carbohydrates, and protein
• Cell wall - A non living component. Provides mechanical support and maintains shape in plant cells.
• Chloroplast - It converts solar energy into chemical energy in process called photosynthesis. Also known as “Power generator of the cell”
• Cytoplasm - The complex fluid that fills the cell. It is the matrix of different organelles
• Exoplasm - outer cytoplasm that’s gel-like
• Sol-like - Inner cytoplasm that is fluid
• Smooth Endoplasmic Reticulum - Serves as site for lipid synthesis
• Rough Endoplasmic Reticulum - abundant in growing cells
• Endoplasmic Reticulum - A network of channels. Transport network for molecules that enter the cell. Plays an important role in skeletal framework and protein synthesis
• Golgi Apparatus - consists of stacks of single membranes. Sorts, packages, and modifies protein.
• Lysosome - A single membrane compartment that contains powerful hydrolytic enzymes. Also known as the “Garbage collector“ or “Suicide bag” of the cell. It simplifies/breaks down complex materials.
• Mitochondrion - A double-membrane structure. It is referred to as “The power house of the cell. It provides energy for the cell in the form of ATP.
• Nucleus - The control center or “brain” of the cell; directs and coordinates all cellular activities. (spherical body)
• DNA - Deoxyribonucleic Acid
• RNA - Ribonucleic Acid
• ATP - Adenosine Triphosphate