Question

JUST ANSWERS.

he large intestine...

Question 51 options:

	Absorbs water and electrolytes.
	Is the location of production of Vitamin K and some B vitamins.
	Stores feces.
	All of the former are correct.

Question 52 (2 points)

Dehydration synthesis...

Question 52 options:

	Connects two molecules by adding a water molecule.
	Connects two molecules by subtracting a water molecule.
	Splits two molecules by subtracting a water molecule.
	Splits two molecules by adding a water molecule.

Question 53 (2 points)

The ovarian follicle that ruptures during a female's monthly cycle then develops into a...

Question 53 options:

	Corpus luteum.
	Mature egg.
	Fimbriae.
	Graafian follicle.

Question 54 (2 points)

The loop of Henle is shaped like a "U", because...

Question 54 options:

	The shape helps to maximize the recovery of essential fatty acids from the filtrate.
	The shape helps to maximize the resorption of salt and water.
	The shape is essential for proper secretion of wastes into the tubules.
	The shape helps to minimize the space occupied by the millions of crowded nephrons.

Question 55 (2 points)

Endergonic reactions...

Question 55 options:

	Both A and B are correct.
	None of the former is correct.
	Store energy.
	Are powered by exergonic reactions.

Question 56 (2 points)

Chief cells produce...

Question 56 options:

	Gastrin.
	Pepsinogen.
	Hydrochloric acide (HCl).
	Vitam B12.

Question 57 (2 points)

During which of the following stages of mitosis does chromatin condense into distinct chromosomes?

Question 57 options:

	Prophase
	Telophase
	Metaphase
	Anaphase

Question 58 (2 points)

The liver receives food primarily from...

Question 58 options:

	The hepatic portal vein.
	The hepatic vein.
	The hepatic duct.
	The hepatic artery.

Question 59 (2 points)

The purpose of cell respiration is to...

Question 59 options:

	Digest large food molecules, so they are small enough to absorb and use.
	Make ATP.
	Break down ATP.

Question 60 (2 points)

An average adult male at rest moves about how much air in and out of the lungs in one minute?

Question 60 options:

	500 mL (0.5L)
	2000 mL (2L)
	4000 mL (4L)
	6000 mL (6L)

Answer 1

51. All are correct because-

The 4 major functions of the large intestine are recovery of water and electrolytes, formation and storage of faeces and fermentation of some of the indigestible food matter by bacteria. The ileocaecal valve controls the entry of material from the last part of the small intestine called the ileum.

However, the chief source of vitamin K is synthesis by bacteria in the large intestine, and in most cases, absence of dietary vitamin K is not at all deleterious. Vitamin K is a fat-soluble vitamin and both dietary and microbial vitamin K are absorbed into intestinal lymph along with other lipids.

52. Option a is correct because-

Dehydration synthesis is the process of joining two molecules, or compounds, together following the removal of water. When you see the word dehydration, the first thing that may come to mind is 'losing water' or 'lacking water. ... Dehydration synthesis is classified as a type of chemical reaction.

53. Option b is correct because-

Ovulation is the release of eggs from the ovaries. In women, this event occurs when the ovarian follicles rupture and release the secondary oocyte ovarian cells(egg). ... In addition, the uterine lining (endometrium) is thickened to be able to receive a fertilized egg.

54. Option b is correct because-

The loop of Henle is a long, U-shaped portion of the tubule that conducts urine within each nephron of the kidney of reptiles, birds and mammals. The functions of the loop of Henle is to reduce the volume of water and solutes within the urine but without changing the concentration.

55. Option a is correct because-

In metabolism, an endergonic process is anabolic, meaning that energy is stored; in many such anabolic processes energy is supplied by coupling the reaction to adenosine triphosphate (ATP) and consequently resulting in a high energy, negatively charged organic phosphate and positive adenosine diphosphate.

Exergonic reaction: reaction releases energy • Endergonic reaction: reaction requires energy • Coupled bioenergetic reactions: the energy released by the exergonic reaction is used to power the endergonic reaction. Energy transfer from one metabolic pathway to another by means of ATP.

56. Option b is correct because:

The gastric chief cell (also known as a zymogenic cell or peptic cell) is a cell in the stomach that releases pepsinogen and chymosin. Pepsinogen is activated into the digestive enzyme pepsin when it comes in contact with acid produced by gastric parietal cells.

57. Option a is correct because-

The phases of mitosis can be described as follows: During prophase chromatin condenses to form discrete chromosomes.

58. Option a is correct because-

There are 2 distinct sources that supply blood to the liver: Oxygenated blood flows into the liver through the hepatic artery. Nutrient-rich blood flows into the liver from the intestines through the hepatic portal vein.

59. Option b is correct because-

Cellular respiration is the process by which cells in plants and animals break down sugar and turn it into energy, which is then used to perform work at the cellular level. The purpose of cellular respiration is simple: it provides cells with the energy they need to function.

60. Option d is correct because-

The average total lung capacity of an adult human male is about 6 litres of air. Tidal breathing is normal, resting breathing; the tidal volume is the volume of air that is inhaled or exhaled in only a single such breath.