Biology, 05.10.2019 14:00 yurrrkassi

Which provides long-term energy storage?
a. glycogen
b. glucagon
c. glucose
d. cellulose

Answers: 2

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Answer from: lindseylewis313

Glycogen provides long-term energy storage.

Glycogen is an example of a carbohydrate which is a polysaccharide that acts as a long-term energy storage compound in animals.

Further Explanation Living organisms require energy in order to undertake their daily activities such as growth and development, locomotion, gaseous exchange, etc. To do so they obtain nutrients for short-term and long-term energy source. Carbohydrates are the major energy source for living organisms, however, living organisms may use other sources of energy such as proteins or fats when carbohydrates is out of stock or not available.

Energy source in animals

Animals use simple carbohydrates such as glucose obtained from diet for short-term energy sources. These simple carbohydrates may also be stored for future use in the form of glycogen, which makes glycogen a long-term energy source, to be used when need arises. When glucose levels are low in the body hormones in the body trigger the breakdown of glycogen to glucose. Other sources of energy such as proteins and fats are used when carbohydrates storage is depleted, for example during starvation.

Energy source in plants

In plants, on the other hand, simple carbohydrates are similarly used as a short term source of energy. Additionally, simple molecules such as glucose are stored in the form of starch for long-term source of energy for the plants.

Why other Choices are incorrect:

Glucagon Glucagon is the hormone that increases the blood glucose level to avoid it from dropping below optimum level. The hormone acts on the liver to stimulate the breakdown of glycogen to glucose, a process called glycogenolysis, and the glucose is released to the blood stream. Glucose Glucose is a simple carbohydrate classified as monosaccharides. It acts as the short term source of energy in both plants and animals. It is readily broken down during the process of cellular respiration to yield energy in the form of ATP, which is then used to drive cellular processes. Cellulose Cellulose is an example of a complex carbohydrates known as polysaccharides. It is found in plants cells lining the cell wall of all plant cells which is one of the key distinguishing feature between plant cells and animal cells.

Keywords: Glycogen, Glucose, energy sources

Learn more about: Glycogen: link Role of glucose: link

Level: High school

Subject: Biology

Topic: Cellular respiration

Answer from: Quest

explanation:

kim antonie lode clijsters[1] (dutch pronunciation: [kɪm ˈklɛistərs] (about this soundlisten); born 8 june 1983) is a belgian former professional tennis player. clijsters was a world no. 1 in both singles and doubles, having held both rankings simultaneously in 2003. she won a total of six grand slam tournament titles, four in singles and two in doubles.

clijsters competed professionally from 1997 to 2012 in an era where her primary rivals were compatriot justine henin and 23-time grand slam singles champion serena williams. coming from a country with limited success in men's or women's tennis, clijsters became the first belgian player to attain the no. 1 ranking. together with henin, she established belgium as a leading force in women's tennis as the two of them led their country to their first fed cup crown in 2001 and were the top two players in the world in late 2003. individually, clijsters won 41 singles titles and 11 doubles titles on the women's tennis association (wta) tour. she was a three-time winner of the wta tour championships. between singles and doubles, she was a champion at all four grand slam tournaments, winning the us open and the australian open in singles and wimbledon and the french open in doubles with ai sugiyama. her success at majors was highlighted by winning three consecutive appearances at the us open.

plagued by injuries and having lost some of her desire to compete, clijsters initially retired from tennis in 2007 at the age of 23 to get married and have a daughter. she returned to the sport two years later and won her second us open title as an unranked player in just her third tournament back. she defended her title the following year and then won the australian open in 2011 en route to becoming the first mother to be ranked no. 1 by the wta. along with margaret court, she also holds the record for most grand slam singles titles won as a mother with three and was the first to win one since evonne goolagong cawley in 1980. she officially retired from professional tennis after the 2012 us open.

clijsters was born to athletic parents with backgrounds in professional football and gymnastics. she was renowned for her athleticism, which was highlighted by her ability to perform splits on court in the middle of points. she built the offensive side of her game around controlled aggression while also using her exceptional movement to become an elite defensive player. clijsters was very popular and well-liked as a player, having won the karen krantzcke sportsmanship award eight times. she was inducted into the international tennis hall of fame in 2017.

contents

1 early life and background

2 junior career

3 professional career

3.1 1997–99: maiden wta title, newcomer of the year

3.2 2000–02: french open finalist, tour champion

3.3 2003: world no. 1 in singles and doubles

3.3.1 singles: two grand slam finals, tour championship defense

3.3.2 doubles: french open and wimbledon titles

3.4 2004–05: extended injury absence, first grand slam singles title

3.5 2006–07: return to no. 1, hastened retirement

3.6 two-year hiatus