ANALYSIS OF BACTERIA GROWTH Abstract Bacteria can be found everywhere on the earth. Bacteria are single-celled organisms that lack a nucleus‚ mitochondria‚ and chloroplasts and are surrounded by a cell wall containing a peptidoglycan layer. They are defined by their small size and wide range of shapes. In this experiment we separated organisms in a mixed culture to study the colony morphology and physical characteristics and determine which organism was present in higher numbers‚ as determined
Premium Bacteria
Centrioles are cylinder-shaped organelles made of short microtubules arranged in a circle. | | Cell Wall | The surrounding of a cell membrane in a plant cell. It is a rigid layer that gives protection‚ support‚ and shape to the cell. | | Chloroplasts | Chloroplasts are organelles that carry out photosynthesis‚ a series of complex
Premium Cell Cell membrane Organelle
Biology 1101 – Homework 3 Cells: Structures & Processes Organelles & Illness - Imagine that you are part of a research team that specializes in diagnosing disorders associated with malfunctioning cellular organelles and structures. Medical doctors consult you to provide a cellular explanation for particularly difficult cases. You recently received the two patient histories outlined below – what is your diagnosis? Note – this exercise is only asking you to determine which cell structure might be
Premium Mitochondrion Adenosine triphosphate Photosynthesis
each kind of tissue is a group of similar cells working together. ❖ Cells are the unit structure and function of all living things; though‚ even at the smallest level‚ cells contain numerous green structures called chloroplasts—known as organelles. ❖ Organelles—Chloroplasts being an example—are made up of teeny tiny chemical structures called molecules. ❖ Finally‚ molecules are composed of two or more small chemical units called atoms. 2. What are the relationships between these
Premium Life Ecology Ecosystem
1. Name and describe the life cycle of plants. The plant life cycle is consisted of two parts: the gametophyte phase where it produces gametes by mitosis and the sporophyte phase which produces spores by meiosis 2. Contrast the life cycle of plants to that of animals: Typical life cycle: alteration of generation (plants)‚ diploid (animals) Resulting structure from meiosis: spores-plants‚ gametes-animals Occurrence of mitosis: gamete production-plants‚ zygote to individual-animals 3. Compare
Premium Plant Eukaryote
The light independent reactions that occur in the stroma of the chloroplast. Chlorophyll and other pigments are grouped together to form a photosystem. There are two photosystems‚ photosystem II(P700) and photosystemI(P680) Each photosystem acts as a light harvesting system; light energy is passed from the accessory pigments to the chlorophyll in the reaction centre of the photosystem. Light energy strikes the chloroplast. The energy is channelled towards the chlorophyll molecule in the
Free Photosynthesis
Topic 2: Cells 2.1 Cell Theory 2.1.1: Outline cell theory Living organisms are composed of cells Cells are the smallest unit of life Cells come from pre-existing cells 2.1.2: Discuss the evidence for cell theory Humans have not been able to find any living thing that is not made up of at least one cell Robert Hooke first described cells when looking at cork through a microscope Louis Pasteur´s experiments: he discovered that all cells must come fom pre-existing cells 2.1.3: State that
Premium Cell Cell membrane
Imagine a busy factory making the latest must-have toy. Whether they make bicycles‚ cell phones‚ or hot air balloons‚ most factories are set up the same way. All factories have outside walls that protect and support them and inside walls that create different work areas. They usually have a production line where a product is put together and an executive department that decides what product is made. A finishing department processes and prepares the product for shipping‚ and a packaging department
Free Cell Endoplasmic reticulum Golgi apparatus
difference among groups of organisms. Eukaryotic cells contain membrane-bound organelles‚ such as the nucleus‚ while prokaryotic cells do not. Differences in cellular structure of prokaryotes and eukaryotes include the presence of mitochondria and chloroplasts‚ the cell wall‚ and the arrangement of chromosomal DNA. Prokaryotes were the only form of life on Earth for millions of years until more complex eukaryotic cells came into being through the development of evolution. Animal Cell vs. Plant Cell
Premium Cell Organelle Eukaryote
Name: Brian Pinales Block: C 10/15/10 Cell WEBQUEST: An interactive journey into the cell! Answer the following questions. You do not have to answer these questions in complete sentences‚ but your answers should be complete with details and information! • Go to: http://askabiologist.asu.edu/research/buildingblocks/cellparts.html 1) How many different kinds of cells are in your body? 200 2) What parts of our bodies are
Premium Eukaryote Organelle Mitochondrion