Cell Structure and Levels of Organisation

Cell membrane

Selective control of what goes in and out of the cell

Nucleus

Carries genetic material (DNA)

Cell membrane

Selective control of what goes in and out of the cell

Nucleus

Carries genetic material (DNA)

Cytoplasm

Jelly like substance in which chemical reactions take place

Vacuole

The vacuole has many functions including storing/isolating harmful material, storing small nutrients, maintaining water balance, and providing structural support for plant cells via turgor pressure

Rough endoplasmic reticulum (RER)

Studded with ribosomes

Ribosomes

Site of protein synthesis

Mitochondria

Site of aerobic respiration (cells with high metabolism rates will need lots of these to offer sufficient energy)

Cell wall

Structural support for plant cells

Chloroplast

Site of photosynthesis in plant cells

Cell

The smallest structural and functional unit of an organism

Tissue

Group of cells with similar structures working together to perform a shared function

Organ

Structure made up of a group of tissues, working together to perform specific functions

Organ system

Group of organs with related functions, working together to perform body functions

Ciliated cells

Cells that have structures aiding in their particular function

Root hair cells

Cells that have structures aiding in their particular function

Xylem vessels

Cells that have structures aiding in their particular function

Palisade cells

Cells that have structures aiding in their particular function

Nerve cells

Cells that have structures aiding in their particular function

Red blood cells

Cells that have structures aiding in their particular function

Sperm and egg cells

Cells that have structures aiding in their particular function

Magnification

The purpose of the microscope is to magnify our specimen so that it appears bigger for us to be able to actually see

Equation for magnification

The equation relates the image size, actual size, and magnification of the specimen