Biology Year 11 Yearly Notes Chapter One – A local ecosystem 1.1 Terrestrial and Aquatic Environments -Ecosystem: any environment containing living organisms interacting with each other and with the non-living parts of that environment. -Environment: the environment of an organism is its surroundings‚ both living and non-living -Habitat: the habitat of an organism is the place where it lives. Australian Environments * Terrestrial environments are environments on land. Land covers about
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organism * Phyla based on locomotion Plant-like= Algae * 6 phyla based on their chloroplasts and pigments they have * Autotrophic: make their own food by photosynthesis * Some consume other organisms in the presence of light & other are symbiotic (live in other organisms- not necessarily beneficial for both parties) * Carry pigments in their chloroplast to carry out photosynthesis * Most common is chlorophyll which is typically green in colour * Lack leaves‚
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ANIMAL CELL PROJECT By: Jonathan Everett Science 2nd Ms. Thompson January 11‚ 2013 Have you ever heard of an animal cell? Well‚ I you haven’t it is a cell that is found in an animal that consist of multiple organelles. Each organelle has a special job that helps the cell function. This paper will help describe each organelle in the animal cell. 1. Endoplasmic Reticulum The Endoplasmic Reticulum is found in both the plant and animal
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protects the genetic material. Without organelles (only ribosomes) Presence of membrane-bound organelles Smaller in size Types: plant and animal ANIMAL CELLS PLANT CELLS Cell walls absent Cell walls made of cellulose Chloroplast never present Chloroplast present Centrioles present Centrioles absent Variety of shapes Regular shapes Small vacuoles throughout the cytoplasm Often one large central vacuole Nucleus anywhere but often in the centre Nucleus at the edge of the cell
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Cell Wall- The cell wall is a rigid structure outside the cell membrane that supports and protects the cell. The cell wall is made of tough cellulose fibers and other materials made by the cell. Analogy- In a restaurant the building itself supports the restaurant. It is often made of wood or concrete. Cell Membrane- The cell membrane is a structure that forms the outer boundary of the cell and allows only certain materials to move into and out of the cell. Food‚ oxygen and water move into
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EXERCISE 1: A BEGINNER’S GUIDE TO THE STUDY OF PLANT STRUCTURE Adonay‚ Jessa and Velos‚ Mary Angelie Biology Program‚ Sciences Cluster University of the Philippines Cebu Lahug‚ Cebu City‚ Philippines ABSTRACT Plants have essential requirements to survive like all other living being. Roots‚ stems‚ leaves‚ and flower serve to help them acquire or provide for these requirements. Plants exposed to different climates pose different arrangement in the structures’ tissues. A closer look on its
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atmosphere and how it is stored. I will explore the main processes in the carbon cycle – photosynthesis‚ respiration‚ plants‚ animals‚ decomposition‚ oceans‚ fossil fuels‚ and volcanism – and how they interlink together to form a complete and full cycle. Photosynthesis is a complex reaction‚ where plants (and some bacteria) release oxygen to change water and carbon dioxide to sugar for food. During photosynthesis plants and phytoplankton take carbon dioxide from the atmosphere by absorbing it into
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Chapter 1 - Scientific Methods Objectives 1. Demonstrate a basic knowledge of classroom/science safety. 2. Understand the purpose of a hypothesis‚ and identify when a hypothesis should be used. 3. Be able to identify the independent and dependent variables in a formalized hypothesis. 4. Differentiate between an observation and an inference. 5. Contrast quantitative and qualitative observations. 6. Given a data table‚ draw and label a graph. Including a title‚ labeled units‚ and legend. 7
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Cell Organelles Nucleus Its function is to control the cell’s activities and retain the chromosomes. The nucleus is bound by a double membrane‚ the nuclear envelope. The nuclear envelope has pores in it to allow the transport of mRNA. The cytoplasm like material is called nucleoplasm which contains chromatin (coils of DNA and histone proteins)‚ it is chromatin that condenses to form chromosomes during cell division. Within the nucleus is a small spherical body called the nucleolus which
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COMPARATIVE ANALYSIS OF THE DIFFERENT CELLULAR STRUCTURES CELLULAR STRUCTURES COMPOSITION (Biomolecule) LOCATION (in relation to the cell) NUMBER and DISTRIBUTION PRESENCE/ABSENCE IN ORGANISMS PROCESSES INVOLVED (functions) BODY STRUCTURE/ ORGAN functionally similar to and why? CELL MEMBRANE Glycoprotein Phospholipids Cholesterol Glycolipids Peripheral protein Integral protein Structural Protein Receptor Protein Transport Protein Outer Side of the Cell - Maintains the physical
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