Living Organisms

Flashcards by collpipp, updated more than 1 year ago
Created by collpipp about 6 years ago


Flashcards on Living Organisms, created by collpipp on 03/24/2015.

Resource summary

Question Answer
What is the Cell Theory? - All organisms are composed of cells - All cells come from pre-existing cells - The cell is the smallest living organisational unit
What is the relation between the surface area an volume of a cell The bigger the surface area, the bigger the volume of the cell
What is the difference between a unicellular organism and a multicellular organism A unicellular organism is made up of only one cell. A multicellular organism is made of many cells
What is diffusion? Diffusion is the passive movement of a substance from an area of high concentration to an area of low concentration
What is osmosis? Osmosis is the movement of a substance from a high area of concentration to an area of low concentration through a partially permeable membrane
What is active transport? The movement of substances across a membrane that requires energy expenditure
What do cells need? Proteins Carbohydrates Lipids Water Oxygen Ions Minerals
What do cells remove? Messages Proteins Urea (Nitrogenous Wastes) Water
What is asexual reproduction? a single organism reproducing without another
What is sexual reproduction? Two parents each provide a sex cell
What are the 7 levels of classification in the correct order Kingdom Phylum Class Order Family Genus Species
What are the three types of adaptation? Structural Physiological Behavioral
What are the five kingdoms? Animalia Plante Fungi Monera Protista
What are the six features of living things? Reproduction Adaptation Respond to environment Respiration Made of cells Chemically complex and highly organised
What does Heterotrophic mean? That an organism depends on other organisms for food
What does Autotrophic mean? Organisms that can produce their own food. E.g. plants using photosynthesis
What are Eukaryotic cells? Cells with a nucleus
What are prokaryotic cells? Cells with no nucleus
What is a nucleotide? The basic unit of a nucelic acid
What are the biological compounds? Carbohydrates Lipids Proteins
What biological compound is a major component of cell membranes? Lipids
What biological compound is used as enzymes, hormones and structurally to build up substances Proteins
What biological compound is converted to sugar in the human body to supply energy? Carbohydrates
What is the function of the Mitochondria? The Mitochondria are involved in the energy transformations that take place in the cell
What is the function of the Smooth Endoplasmic Reticulum? The Smooth ER is a passage for protiens
What is the function of the Rough Endoplasmic Reticulum? Movement of synthesised proteins
What is the function of the Nucleus? The Nucleus contains genetic material and controls the cellular activities
What is the function of the Golgi Apparatus? The Golgi Apparatus is where final synthesis and packaging of proteins in membrane-bound vesicles take place before secretion
What is the function of the Ribosomes Tiny organelles that are sites of production of protein
What is the function of the Cell Wall? Provides support, prevents expansion of cells and allows water and dissolved objects to pass
What is the function if the cell membrane? A delicate structure which contains the cytoplasm and controls the movement of substances in and out of the cell
What is the function of the chloroplast? Found in plant cells where photosynthesis takes place
What is the function of the vacuole? Contains food, enzymes or fluid
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