Food provides energy to animal cells, whereas sunshine provides energy to plant cells. Chemicalenergy, which is the energy held in the bonds that connect the atoms of every molecule, is used by all cells. Cells must be able to release the chemical energy in the connections in order to continue to function.
The smallest unit in biology that can sustain life on its own and makes up all living things as well as the body's tissues.
After using a very early microscope to examine a piece of cork, Robert Hooke proposed the name "cell" in 1665, derived from the Latin cella, which means "storeroom or chamber."
It is also claimed that he believed the rectangular spaces resembled some monasticcells.
Animal cells get their energy from food, but plant cells get their energy from sunlight. All cells employ chemicalenergy, which is the energy stored in the bonds that bind the atoms of every molecule.
To keep working, cells need to be able to discharge the chemical energy stored in their connections.
Thus, this way, plants and animal cells obtain their energy.
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Plant cells obtain their energy by making their own food through the process of photosynthesis. Photosynthesis is a process by which carbon dioxide , water and light energy are utilized by plants to make energy-rich carbohydrates such as glucose. Plants store up the glucose as starch in their tissues. When plant cells needs energy, they simply take glucose molecules from their store of starch and use it in cellular respiration to produce ATP, the form of energy that the cell uses to function.
Animals on the other hand do not make their own food but ingest ready made food and break it down into its simplest units through the process of digestion. Complex carbohydrates are broken down to glucose units. Glucose is directly taken in by the animal cells where it is used in cellular respiration to produce ATP ,which fuels the cell activities.
B. absorption of nutrients
C. breaking down complex carbohydrates
D. removing water from undigested waste
The main function of the large intestine is to remove water from undigested waste. Therefore, the correct answer is option d.
The large intestine, also known as the colon, plays a crucial role in the final stages of the digestive process. Its primary functions include:
The large intestine does not play a significant role in the digestion of proteins, absorption of nutrients (the majority of nutrient absorption occurs in the small intestine), or the breakdown of complex carbohydrates (most carbohydrate digestion occurs in the small intestine as well). Its primary functions are related to water absorption, feces formation, and the maintenance of a healthy gut microbiota.
Therefore, the correct answer is option d.
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The answer is D What is the main function of digestion?
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Answer:
A physical environment with different species that interact with one another and with nonliving things is called an ecosystem.
Ecosystem is the functional unit of nature. An ecosystem can be different in size according to the communities living in that ecosystem. Abiotic and biotic components together make an ecosystem.
Chemical and physical factors come under abiotic components. Physical components like water, air, light, temperature have more effects on the ecosystem than chemical factor.
Organisms are the biotic component of an ecosystem. They can be autotrophs or heterotrophs. Many organisms make a population, many populations combine to form community and many communities combine to form an ecosystem.
Organism↔Population↔Community↔Ecosystem