Nutrients: Macro and Micro Nutrients

1. Macro nutrients or major elements are those nutrients required by the plant in larger quantity. Examples are Carbon, Hydrogen, oxygen, nitrogen, calcium, magnesium, potassium, iron, sulphur and phosphorus. <br> <br> <br> <br>2. Micro nutrients or minor elements are those nutrients required by plants in smaller quantity. Eg. Copper, boron, Molybdenum, Manganese and zinc. <br> <br> <br> <br>These elements are required mainly for the formation of pigment and enzymes. The plant obtain carbon hydrogen and oxygen from the atmosphere. The rest of the element are absorbed in the formation of soluble mineral salt from the soil by the root system of the plant. Although nitrogen is abundant in the atmosphere. It cannot be used directly by the green plants.

Nutrients: Macro and Micro Nutrients

1. Macro nutrients or major elements are those nutrients required by the plant in larger quantity. Examples are Carbon, Hydrogen, oxygen, ni...

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Energy: First and Second Law of Thermodynamics

THE FIRST LAW OF THERMODYNAMICS <br>The first law of thermodynamics states that energy cannot be created or destroyed but can be transformed from one form to another. This law means that the total amount of energy from one form to another equal to the initial amount. <br> <br> <br> <br>THE SECOND LAW OF THERMODYNAMICS: the second law of thermodynamics states that when one form of energy is converted to another a proportion of it is lost in the form of heat. It therefore means that when sugar is broken down at will the energy liberated can be used for forming new chemical bonds buit a proportion of it is lost as heat. Put in another way, It means that no form of energy transfer is 100% efficient. Also not all potential energy in herbivores is available to the carnivores. Energy is lost as the trophic level are as needed.

Energy: First and Second Law of Thermodynamics

THE FIRST LAW OF THERMODYNAMICS The first law of thermodynamics states that energy cannot be created or destroyed but can be transformed fr...

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Sources of Energy and Energy Transformation

Sources of Energy: Natural sources of energy include food, wood, fuel such as crude oil, coal and natural gas, sun fat water. of all those natural sources of Energy, sun is the ultimate source of energy for the living world. Plant use solar energy to manufacture their own food and animal obtain this energy by eating the plant. <br> <br> <br> <br>Energy Transformation: Energy can be converted from one form to another. For example: Green plants convert light into chemical energy during photosynthesis and all other organisms can convert this tored energy. Such as the conversion of a chemical energy into light energy results in the glow of light. <br> <br> <br>Solar Energy is converted to heat energy in the burning of a paper when the solar energy is focused on it using converting lens. <br> <br>Chemical energy can be converted into light in the lightning of an electrical bulb.

Sources of Energy and Energy Transformation

Sources of Energy: Natural sources of energy include food, wood, fuel such as crude oil, coal and natural gas, sun fat water. of all those ...

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What is Energy? Sources of Energy and Forms of Energy

What is energy? Energy is the ability to perform work. It is the main spring of all life and of all the activities of mankind. Work is done when force causes an objectto more firmly distance. <br> <br> <br> <br> <br>Forms of Energy: <br>1) Mechanical energy which involves potential and kinetic. <br>2) Solar (light) (3) Chemical (Fuel and food). (4) Electrical, (5) Sound, (6) Heat (7) Nuclear(atomic) Energy. <br> <br> <br> <br> <br>Energy Requirement of Biological activities. <br> <br> <br>1. Energy is required for Mechanical work. This means that the contraction of muscle cells during locomotion and in beating of cilia and. Flagellum. <br> <br> <br>2. Energy is required in active transport. This is in form of kinetic energy body processes like diffusion and osmosis during the movement materials like digested food or waste products. This is done against their concentration gradient. <br> <br>3. Heat Production: Energy transformation within the cell produces heat energy in muscles contraction in which chemical energy is changed to mechanical energy. <br> <br> <br> <br>4. Heat Production: Energy transformation within the cell produces heat energy in muscles contraction in which chemical energy is changed to mechanical energy. <br> <br> <br>5. Metabolism eg. Anabolism- This is the building up processes such as protein, synthesis require energy in form of ATP and breaking down processes which is catabolism such as respiration also require energy.

What is Energy? Sources of Energy and Forms of Energy

What is energy? Energy is the ability to perform work. It is the main spring of all life and of all the activities of mankind. Work is done...

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Euglena: Plant characteristics and Animal characteristics of Euglena

Euglena is an organism sharing both characteristics of plants and animals. <br> <br> <br> <br>Plants Characteristics of Euglena: <br> <br> <br> <br> <br>It has chlorophyll for photosynthesis. <br> <br>It uses holophytic mode of nutrition if light is present. <br> <br> <br>Possession of pyrenoid. <br> <br> <br>Carbohydrate or food is stored in form of starch granules. <br> <br> <br> <br> <br> <br>ANIMaL Characteristics of Euglena: <br> <br>Possession of an eye part for light deflection. <br> <br> <br>Possession of pellicle. <br> <br> <br>Possession of a gullet and a food reservoire. <br> <br> <br>Possession of flagellum for movement. <br> <br> <br>Possession of myonemes for movement. <br> <br> <br> <br>Possession of contractive vacuole for excretion and osmoregulation. <br> <br> <br>In the absence of light, nutrition is holozoic.

Euglena: Plant characteristics and Animal characteristics of Euglena

Euglena is an organism sharing both characteristics of plants and animals. Plants Characteristics of Euglena: It has chloro...

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Differences and Similarities between plant cell and Animal cell

1. Chloroplast are present in plant cells while chloroplats are absent in animal cells. <br> <br> <br> <br> <br>2. Cell walls are present in plant cells while cell walls are absent in animal cells. <br> <br> <br> <br> <br>3. Plant cells have definite shape, animal cells have irregular shape. <br> <br> <br> <br> <br>4. Lysosome is absent in plant cell while lysosome is present in animal cells. <br> <br> <br> <br> <br>5. Centriole is present in animal cells but absent in plant cells. <br> <br> <br> <br> <br> <br>SIMILARITIES BETWEEN PLANT AND ANIMAL CELLS <br> <br> <br> <br> <br>Both have nucleus. <br> <br> <br>Both have cytoplasm. <br> <br> <br> <br>Both have vacuole. <br> <br> <br> <br>Both have cell membrane.

Differences and Similarities between plant cell and Animal cell

1. Chloroplast are present in plant cells while chloroplats are absent in animal cells. 2. Cell walls are present in plant cells w...

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Difference Between Plants Animals

1. Plants are not a and have no organ of movement. While animals are active and have organs of movement. <br> <br> <br> <br> <br>2. Plants have slow response stimuli while animals have fast response to stimuli. <br> <br> <br> <br> <br>3. Plants possess no special excretory organ. While animals have special exory organs. <br> <br> <br> <br> <br> <br>4. Food is stored mainly as starch especially Fungi. While in animals, food is mainly ed as glycogen and fat which is in form of glycogen. <br> <br> <br> <br> <br>5. Gaseous exchs through the entire body in plants, while gaseous exchange in animals go throught special organs. <br> <br> <br> <br> <br>6. Plant Cell has rigid non-living cellulose cell. While animal cell has thin flexible cell membrane. <br> <br> <br> <br> <br>7. Plants cells halarge vacuoles containing cell sap. While animal cells have no large vacuol. <br> <br> <br> <br> <br>8. They have no fixed number or part ; branching is continuous. Animas have fixed number of parts which are usually compact. <br> <br> <br> <br> <br>9. Growth is indefinite and capital in plants while in Animals growth is definite and intercalary. Ie. It occurs uniformly in body.

Difference Between Plants Animals

1. Plants are not a and have no organ of movement. While animals are active and have organs of movement. 2. Plants have slow respo...

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