Biology relates to the human eye because if we didn't have certain organs or cells we would be able to see.There is three types of cells found in the human eye that allows us to see what's going. The first cell is called the Cone cell this plays a big part when were visualizing something.This cell is located in the retina and their role in the human eye is for colour vision and in relativity bright.The Cone cells also help us see colour for example red , green and blue also cones cells are less sensitive to light the also are able to add small details to the image and more faster changes to the image.
- Pseudostratified ciliated epithelium line the upper respiratory tract to trap and move pollutants upwards with goblet cells producing mucus to trap debris. Ciliated cells sweep the mucus up out of the airways. Without this type of special lining tissue the lungs would get polluted with dirt from the air that is breathed in (Alberts, B et al, 2002)
As vital organ of vision, the eye, allows us to learn more about the world around us more than any other organ or senses. Sight, the physical sensory experience and vision, the metaphysical concept of how our brain interprets images both work harmoniously and play a huge role in our everyday lives. However, almost a billion people are either blind or visually impaired simply due to not having a pair of glasses. Being able to lead people in the direction of good vision is what developed my interests.
Before you buy cilia and flagella it is important to understand their functions and structures. Both cilia and flagella are whip-like columns of microtubules, covered in a membrane. They serve to move liquids across or over the surface of a cell, and can also be used to transport the cell from point A. To point B. There are 3 different types of flagellum, and 2 different types of cilia.
The eyeball holds many parts to allow eyesight. The retina holds the key to allowing the human eye to see color. The pupil appears as the black part of the eye that people see, the pupil however does not have much to do with comprehending color. As Clarence Rainwater said in his book “The pupil is simply the hole in the iris through which light enters the eye.” (84) The light then has to pass through many parts of the eye before reaching the retina such as the transparent cornea, the aqueous humor, the lens, and the vitreous humor. Clarence Rainwater described the retina as “... the eye’s sensitive inner surface.” (86) The exciting part of the eye starts here. The retina holds the key as stated by Clarence Rainwater, “... a complex system
Phase 1: During the initial phase, optical system is activated. Optical system is placed in the frontal eye area. Parts of the optical system are lens and cornea, and their role can be compared with the role of lens on a camera. They gather and focus the light on the retina in order to create a picture.
In this assignment I will be describing the microstructure of a typical animal cell and the functions of the main cell components. Describing and explaining the factors the ways in which materials move in and out of cells. I will also be analysing the role of the phospholipid bilayer in terms of movement of materials in and out of cells.
Honeybees (Apis mellifera) have two sets of eyes, the ocelli and compound eyes. The ocelli consist of three small eyes with dense lenses on the top of the bees head. These eyes are used to detect light intensity, which helps them determine which way is up and down. The second set, the compound eyes, consist of two eyes both with 6900 hexagonal cells, called ommatidia, which allows the honeybee to
An example of villi in the body includes the inner surface of the small intestine, their function there is nutrient absorption which is useful to extract as much nutrients from food to store for energy sources.
The five senses are vision, hearing, smell, taste and touch. Our vision is the way we create mental pictures of the world and the space around us. Our eyes are the main sensory organ involved in the visionary process. Each part of the eye has a different job in order to put things together. The cornea is a transparent layer that controls light waves that enter the eye. The pupil is a small cavity in our eye where light is able to pass through. When light passes through the
The cell is the smallest unit able to sustain life, and they are often referred to as the building blocks of life. There are two primary types of cell, which are categorized according to the way their genetic material is packaged, rather than size or shape. These are:
The eye is the organ of sight. It is used in almost everything we do, from playing sport to reading. A normal and well functioning eye can focus objects and images, both near and far, perceive depth and adapt to changes in light.