Cells: The Basic Units of Life
... Cells and the Cell Theory Robert Hooke was the first person to describe cells. In 1665, he built a microscope to look at tiny objects. One day, he looked at a thin slice of cork. Cork is found in the bark of cork trees. The cork looked like it was made of little boxes. Hooke named these boxes cells, ...
... Cells and the Cell Theory Robert Hooke was the first person to describe cells. In 1665, he built a microscope to look at tiny objects. One day, he looked at a thin slice of cork. Cork is found in the bark of cork trees. The cork looked like it was made of little boxes. Hooke named these boxes cells, ...
Contents - ZIS Moodle
... ctass¡iãd into five major groups called (bacteria) animals, plants, fungi, protoctists and prokaryotes ...
... ctass¡iãd into five major groups called (bacteria) animals, plants, fungi, protoctists and prokaryotes ...
2017 Year 11 Human Biology ATAR Couse Outline
... ribonucleic acid (RNA) in the nucleus, and translation into an amino acid sequence at the ribosome with the aid of transfer RNA (2) ...
... ribonucleic acid (RNA) in the nucleus, and translation into an amino acid sequence at the ribosome with the aid of transfer RNA (2) ...
Diffusion and osmosis
... organisms. Figure 1 shows some of the substances that regularly pass in and out of cells. All cells are surrounded by a cell membrane. It forms a barrier that any substance entering or leaving a cell must pass through. There are three main ways in which substances move in and out of cells: diffusion ...
... organisms. Figure 1 shows some of the substances that regularly pass in and out of cells. All cells are surrounded by a cell membrane. It forms a barrier that any substance entering or leaving a cell must pass through. There are three main ways in which substances move in and out of cells: diffusion ...
An Introduction to Biology - Emory
... Is the world of living things in disorder without being organized? As it isn’t, any living things do seem to have hierarchical organization. Any living thing falls under a hierarchical level. The representation of level in order to have easier picture of the sense of hierarchy is called hierarchy of ...
... Is the world of living things in disorder without being organized? As it isn’t, any living things do seem to have hierarchical organization. Any living thing falls under a hierarchical level. The representation of level in order to have easier picture of the sense of hierarchy is called hierarchy of ...
as a PDF
... in the right types of cells in the right numbers in the right places in the organism. Another functional requirement is that multicellular function be restored rapidly. The urgency depends on the vulnerability of the embryo. Planktonic embryos receive less protection than brooded or encapsulated emb ...
... in the right types of cells in the right numbers in the right places in the organism. Another functional requirement is that multicellular function be restored rapidly. The urgency depends on the vulnerability of the embryo. Planktonic embryos receive less protection than brooded or encapsulated emb ...
Biology Priority Expectations
... Living systems are made up of four major types of organic molecules: carbohydrates, lipids, proteins and nucleic ...
... Living systems are made up of four major types of organic molecules: carbohydrates, lipids, proteins and nucleic ...
The_Respiratory_System
... B. Internal respiration – O2 moves from the blood into the cell and CO2 moves from the ...
... B. Internal respiration – O2 moves from the blood into the cell and CO2 moves from the ...
7. Biology Glossary
... surrounded by a cell wall, they are not plants. They belong to a group of organisms called the Protoctista. Allele: One of the different forms of a particular gene.In humans, a gene codes for the protein that transports chloride ions across the cell surface membrane. We all have this gene, the CF ge ...
... surrounded by a cell wall, they are not plants. They belong to a group of organisms called the Protoctista. Allele: One of the different forms of a particular gene.In humans, a gene codes for the protein that transports chloride ions across the cell surface membrane. We all have this gene, the CF ge ...
Chapter 2: Cell Structure And Cell Organization
... Amoeba is a unicellular organism which lives in fresh water environment. Although Amoeba sp is made up of only a single cell, it can perform all living processes Explain the living process that enables Amoeba sp to survive in fresh water which is hypotonic to the cytoplasmic fluid of Amoeba sp P1-th ...
... Amoeba is a unicellular organism which lives in fresh water environment. Although Amoeba sp is made up of only a single cell, it can perform all living processes Explain the living process that enables Amoeba sp to survive in fresh water which is hypotonic to the cytoplasmic fluid of Amoeba sp P1-th ...
AS Module 1 - heckgrammar.co.uk
... nucleus, mitochondrion, chloroplast, rough and smooth endoplasmic reticulum, Golgi body and ribosome. • The ultrastructure of a typical bacterial cell, to include cell wall, cell membrane, genetic material, ribosomes, flagellum, plasmid, capsule. Know the functions of these organelles. Be able to re ...
... nucleus, mitochondrion, chloroplast, rough and smooth endoplasmic reticulum, Golgi body and ribosome. • The ultrastructure of a typical bacterial cell, to include cell wall, cell membrane, genetic material, ribosomes, flagellum, plasmid, capsule. Know the functions of these organelles. Be able to re ...
Module 1 Notes
... cohesion. This explains why long columns of water can be sucked up tall trees by transpiration without breaking. It also explains surface tension, which allows small animals to walk on water. Ionisation. When many salts dissolve in water they ionise into discrete positive and negative ions (e.g. N ...
... cohesion. This explains why long columns of water can be sucked up tall trees by transpiration without breaking. It also explains surface tension, which allows small animals to walk on water. Ionisation. When many salts dissolve in water they ionise into discrete positive and negative ions (e.g. N ...
Biodiversity
... 13. prion: protein particles that cause disease. 14. prokaryote: unicellular organism that lacks a nucleus. 15. prophage: bacteriophage DNA that is embedded in the bacterial host's DNA. 16. retrovirus: RNA virus that contains RNA as its genetic information. 17. spirillum: spiral or corkscrew-shaped ...
... 13. prion: protein particles that cause disease. 14. prokaryote: unicellular organism that lacks a nucleus. 15. prophage: bacteriophage DNA that is embedded in the bacterial host's DNA. 16. retrovirus: RNA virus that contains RNA as its genetic information. 17. spirillum: spiral or corkscrew-shaped ...
2010
... water endosmosis occurs in them and the plasmolysed cells become turgid and the leaves become crisp. In the dark the iris is wide open to let in more light. Also the pigment visual purple is built up in more amount. As we come out in bright light the visual purple is bleached and iris muscles contra ...
... water endosmosis occurs in them and the plasmolysed cells become turgid and the leaves become crisp. In the dark the iris is wide open to let in more light. Also the pigment visual purple is built up in more amount. As we come out in bright light the visual purple is bleached and iris muscles contra ...
Human Anatomy and Physiology
... involving glucose that takes place in the cytoplasm of a cell. A. True B. False 21. Which of the following would be an example of a catabolic reaction? A. The cells producing proteins at a ribosome by combining various amino acids. B. The breakdown of a chicken tender in your digestive system. C. Th ...
... involving glucose that takes place in the cytoplasm of a cell. A. True B. False 21. Which of the following would be an example of a catabolic reaction? A. The cells producing proteins at a ribosome by combining various amino acids. B. The breakdown of a chicken tender in your digestive system. C. Th ...
Vertebrate Embryology
... lineage of animals develop earlier in the embryo than the more specialized or unique features characteristic of specific members of the group. • EXAMPLE: Features characteristic of all vertebrates (brain and spinal cord, notochord and vertebrae, segmented muscles) appear earlier in development than ...
... lineage of animals develop earlier in the embryo than the more specialized or unique features characteristic of specific members of the group. • EXAMPLE: Features characteristic of all vertebrates (brain and spinal cord, notochord and vertebrae, segmented muscles) appear earlier in development than ...
File
... 10. Chemotaxonomy: A study of certain characteristic chemical constituents of organisms to study the taxonomic relationship between them. 11. Classification: A system of arrangement of organisms into groups showing relationship. 12. Cytotaxonomy: A technique of understanding the taxonomic relationsh ...
... 10. Chemotaxonomy: A study of certain characteristic chemical constituents of organisms to study the taxonomic relationship between them. 11. Classification: A system of arrangement of organisms into groups showing relationship. 12. Cytotaxonomy: A technique of understanding the taxonomic relationsh ...
The Molecular Basis of Life
... stay alive? Like you, they have to obtain and ingest food and water, get rid of wastes, grow, and respond to changes in their environment. At some point, they will reproduce, creating more cells. Each one of these cells has to perform key life processes. How does one cell do all that? Each cell uses ...
... stay alive? Like you, they have to obtain and ingest food and water, get rid of wastes, grow, and respond to changes in their environment. At some point, they will reproduce, creating more cells. Each one of these cells has to perform key life processes. How does one cell do all that? Each cell uses ...
Evolution of Metabolism Puzzle Race
... down food for energy and spending energy to help the organism live. The students pretend to be the “cells” of different “organisms” and they race to put together a puzzle. The overall activity is a metaphor for metabolism: how we break food down into smaller parts to get energy to put the pieces tog ...
... down food for energy and spending energy to help the organism live. The students pretend to be the “cells” of different “organisms” and they race to put together a puzzle. The overall activity is a metaphor for metabolism: how we break food down into smaller parts to get energy to put the pieces tog ...
174 kb
... Standard 4: Key Idea 1: Performance Indicator 1.1: Compare and contrast the parts of plants, animals, and one-celled organisms. Essential Knowledge/Skills (Major Understandings) 1.1a Living things are composed of cells. Cells provide the structure and carry on the major functions to sustain life. C ...
... Standard 4: Key Idea 1: Performance Indicator 1.1: Compare and contrast the parts of plants, animals, and one-celled organisms. Essential Knowledge/Skills (Major Understandings) 1.1a Living things are composed of cells. Cells provide the structure and carry on the major functions to sustain life. C ...
06/Simple Marine Animals
... of ingestion, the taking in of food? Food is swept toward the Vorticella’s “mouth” (oral groove) by movements of its ring of cilia. (Protozoa that are motile actively catch and ingest their food.) The large food particles ingested by the Vorticella enter its food vacuoles. There, they are broken do ...
... of ingestion, the taking in of food? Food is swept toward the Vorticella’s “mouth” (oral groove) by movements of its ring of cilia. (Protozoa that are motile actively catch and ingest their food.) The large food particles ingested by the Vorticella enter its food vacuoles. There, they are broken do ...
Cell (biology)
The cell (from Latin cella, meaning ""small room"") is the basic structural, functional, and biological unit of all known living organisms. Cells are the smallest unit of life that can replicate independently, and are often called the ""building blocks of life"". The study of cells is called cell biology.Cells consist of cytoplasm enclosed within a membrane, which contains many biomolecules such as proteins and nucleic acids. Organisms can be classified as unicellular (consisting of a single cell; including bacteria) or multicellular (including plants and animals). While the number of cells in plants and animals varies from species to species, humans contain more than 10 trillion (1013) cells. Most plant and animal cells are visible only under the microscope, with dimensions between 1 and 100 micrometres.The cell was discovered by Robert Hooke in 1665, who named the biological unit for its resemblance to cells inhabited by Christian monks in a monastery. Cell theory, first developed in 1839 by Matthias Jakob Schleiden and Theodor Schwann, states that all organisms are composed of one or more cells, that cells are the fundamental unit of structure and function in all living organisms, that all cells come from preexisting cells, and that all cells contain the hereditary information necessary for regulating cell functions and for transmitting information to the next generation of cells. Cells emerged on Earth at least 3.5 billion years ago.