Animals vs plants, Biology

Animals vs Plants

Organisms are of two main types animals and plants, although all the above mentioned Unifying concepts of Biology apply equally to both animals and plants, yet animals and plants differ in several important respects as follows:

1. Cell structure: Every living cell is bounded by an extremely thin and elastic, living membrane, called plasma or cell membrane. Plant cells possess an additional thick inelastic and non living cell wall outside the plasma membrane. This cell wall is formed of a carbohydrate called cellulose. Due to its presence, plant cells have faces shapes and no flexibility unlike animal cells, plant cells typically contain large vacuoles filled with a watery fluid called cell sap unlike plant cells, and animal cells possess a division centre or centrosome near the nucleus. Unlike   animal cells, most plant cells possess a special type of organelles.   Called,  chloroplasts which contain the green pigment chlorophyll.

2. Growth: Some embryonic reserve tissues persist throughout life in the plants. That is why plants continue growing and forming new parts throughout life and become branched. In animals, embryonic, tissues are used up early. Hence, news organs cease to form after embryonic development and the body continues only up to   a certain age. And the power of regeneration of lost or damaged parts is very poor in comparison to the plants.

3. Locomotion and movement: Most animals can move about from place to place and can also move parts o their bodies. Excepting a few lower forms, plants are usually fixed in the ground by means of roots and, hence, immobile. Some spontaneous movement is, however, exhibited by some of their parts, such as the leaves and flowers.

4. Body Organization: As compared to the animals, plants have a simpler body organization with a fewer types of organs such as roots, stem, leaves and flowers.

5. Nutrition: The most important difference between plants and animals concerns their nutrition. Carbohydrates, fats and proteins are the major nutrients' for all organisms. Plants synthesize these organic nutrients from their inorganic constituents obtained from the environment. This called photosynthesis, because it occurs in presence of sunlight with the help of chlorophyll. Animals have no chlorophyll and hence, cannot synthesize the nutrients. Obviously, the nutrition of plants is thus autotrophic, while that of animals is heterotrophic holistic

6. Trapping of solar energy: Sunlight is the only source of energy required for synthesis of organic nutrients upon present earth. This solar energy is a kinetic energy .Only green plants can trap it Inc c or c h bonds with the help of chlorophyll   in photosynthesis, synthesizing carbohydrates and then, the other macronutrients from carbohydrates.

7. Irritability: Plants have poorer responsiveness to environmental changes Hence, their responses are extremely slow, minimal and indistinct, Responsiveness in animals is well evolved and accompanied with the evolution of a nervous system to help in it.

8. Storage of carbohydrates: Animals store carbohydrates in the form of glycogen, while plants store these as starch.

Posted Date: 9/26/2012 4:23:58 AM | Location : United States

Related Discussions:- Animals vs plants, Assignment Help, Ask Question on Animals vs plants, Get Answer, Expert's Help, Animals vs plants Discussions

Write discussion on Animals vs plants
Your posts are moderated
Related Questions
Define about the Photometry - colorimetry? Photometry is the measurement of the luminous intensity light or the amount of luminous light falling on a surface from such a source

Classification of Nephrotic Syndrome In childhood, nephrotic syndrome can be divided into minimal lesion nephrofic syndrome and  significant lesion nephrotic syndrome dependin

Locomotory Structures Annelids possess three kinds of locomotory structures, namely parapodia, setae and suckers. Parapodia are segmentally arranged, lateral, hollow extensio

Low levels of dissolved salts characterise the freshwater biomes. The salt content of fresh water is about 0.005 percent. The freshwater biomes consist of inland bodies of standing

Q. Show the Directly Visible Chemical Characters? Very few chemical substances in plants can be observed directly, but the few substances such, starch grains which are pres

Explain the Psychological Management of eating disorders? All anorexia nervosa or bulimia nervosa patients are resistant to any kind of therapy and hospitalization may be a lif

What is determined by tube feet? Hollow and fluid-filled tubes which are part of the water vascular system in Echinoderms. Muscles associated with tube feet allow them to be hy

Is it possible to perform investigation of natural paternity, maternity or brotherhood and sisterhood using the ABO blood typing? By using an ABO blood typing it is possible on

PGA as the first CO2 fixation product was discovered in photosynthesis of: 1. Bryophyte 2. Gymnosperm 3. Angiosperm 4. Alga Alga

Explain the Evolution of the Vascular Plant Body? Vascular Plant anatomy reflects adaptation to life on land. In an aquatic environment, the photosynthetic surfaces are support