Cellulose is one of the most abundant natural biopolymers. The cell walls of plants are mostly made of cellulose, which provides structural support to the cell. Wood and paper are mostly cellulosic in nature. Cellulose is made up of glucose monomers that are linked by bonds between particular carbon atoms in the glucose molecule.
Every other glucose monomer in cellulose is flipped over and packed tightly as extended long chains. This gives cellulose its rigidity and high tensile strength—which is so important to plant cells. Cellulose passing through our digestive system is called dietary fiber. While the glucose-glucose bonds in cellulose cannot be broken down by human digestive enzymes, herbivores such as cows, buffalos, and horses are able to digest grass that is rich in cellulose and use it as a food source. In these animals, certain species of bacteria reside in the rumen (part of the digestive system of herbivores) and secrete the enzyme cellulase. The appendix also contains bacteria that break down cellulose, giving it an important role in the digestive systems of ruminants. Cellulases can break down cellulose into glucose monomers that can be used as an energy source by the animal.
The female part of the flower is known as the CARPEL or pistil so the as would be D.
Answer:
D) Pisum sativum (pea plant).
Explanation:
Gregor Mendel, through his work on pea plants, discovered the fundamental laws of inheritance. He deduced that genes come in pairs and are inherited as distinct units, one from each parent. Mendel tracked the segregation of parental genes and their appearance in the offspring as dominant or recessive traits.
Answer:
Flight simulators are widely used for pilot training in the aviation industry, military pilot training, simulation of disasters or failures in flight, and aircraft development.
These simulations are used for pilot training, whose essential function is to train the crew in normal, abnormal and emergency procedures, before and during flight, practicing innumerable situations, such as: failures in electronic systems, loss of power, tailwinds and many others, which cannot be done safely with an aircraft in real situations. Explains to the new pilots the movements and attitudes of the ships, becoming a fundamental part of the training, saving lives and large economic losses.
These simulations allow knowing the causes of each plane crash in order to modify the operating procedures and training, so that its repetition is avoided. Flight safety investigations are complex and analyze numerous factors, and rather than investigating the persons responsible, it tries to find out the causes of the incident, considering human factors and technical issues.
The correct answer for the question "A student looks at a slice of tissue on an unlabelled microscope slide. the student concludes that the tissue is not from an animal because the cells in t<span>he tissue have" is D. Cell walls. When we compare animal and plant cells, only plant cells have cell walls. Cell walls are formed because of cellulose. </span>
