Tag: the muscular system and digestive system in human beings

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Questions Related to the muscular system and digestive system in human beings

Multiple choice bio-chemistry the muscular system and digestive system in human beings busy at work - our internal organs skeletal and digestive system from tasting to digestion types of ecological pyramids introduction to human digestive system

If for some reason the parietal cells of the gut epithelium become partially nonfunctional, what is likely to happen

  1. Pancreatic enzymes, specially trypsin and lipase will not work efficiently

  2. Proteins will not be adequately hydrolysed by pepsin to proteoses and peptones

  3. pH of stomach will fall abruptly

  4. Steapsin will not be effective
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Parietal cells secrete hydrochloric acid (HCl), which is necessary to convert pepsinogen into active pepsin. Without HCl, protein digestion in the stomach is severely impaired.

Multiple choice bio-chemistry the muscular system and digestive system in human beings busy at work - our internal organs skeletal and digestive system from tasting to digestion types of ecological pyramids introduction to human digestive system

The enzyme that is not present in succus entericus is

  1. Maltase

  2. Nucleases

  3. Nucleosidase

  4. Lipase
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Succus entericus (intestinal juice) contains disaccharidases, dipeptidases, and lipases, but nucleases are primarily secreted by the pancreas.

Multiple choice bio-chemistry the muscular system and digestive system in human beings busy at work - our internal organs skeletal and digestive system from tasting to digestion types of ecological pyramids introduction to human digestive system

Cellulose in our food passes out undigested.

  1. True

  2. False
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Cellulose falls into the category of indigestible carbohydrates known as dietary fibre. Humans don't have an enzyme to digest cellulose. 

Hence, the correct answer is 'true'

Multiple choice bio-chemistry the muscular system and digestive system in human beings busy at work - our internal organs skeletal and digestive system from tasting to digestion types of ecological pyramids introduction to human digestive system

Digestion of food occurs as a result of

  1. hydrolysis

  2. oxidation

  3. polymerization

  4. reduction
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

  • The digestion process depends upon hydrolysis to provide the biochemical reactions that break down food.
  •  The digestive tract secretes enzymes, such as proteases, carbohydrases, nucleases and lipases that, along with water, catalyze the hydrolysis that releases various nutrients. Hence, the Digestion of food occurs as a result of hydrolysis.
So, the correct answer is 'hydrolysis'.

Multiple choice bio-chemistry the muscular system and digestive system in human beings busy at work - our internal organs skeletal and digestive system from tasting to digestion types of ecological pyramids introduction to human digestive system

Choose the correct answers from the alternatives given.
Most chemical digestion occurs in the

  1. stomach

  2. liver

  3. duodenum

  4. large intestine
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Enteropeptidase is an enzyme produced by the cells of the duodenum and is involved in the digestion in humans and other animals. Enteropeptidase converts trypsinogen (a zymogen) into its active form trypsin, resulting in the subsequent activation of pancreatic digestive enzymes

So, the correct answer is 'duodenum'

Multiple choice bio-chemistry the muscular system and digestive system in human beings busy at work - our internal organs skeletal and digestive system from tasting to digestion types of ecological pyramids introduction to human digestive system

Most digestive systems have regions for.......... food

  1. transporting

  2. processing

  3. storing

  4. all of these
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The digestive system plays an important role in the absorption of nutrients into the body. It takes the food we ingest, breaks it down mechanically and chemically in the mouth and stomach. It then absorbs nutrients, fats, proteins, and water in the intestines before eliminating the waste through the rectum

So, the correct answer is 'all of these'

Multiple choice bio-chemistry the muscular system and digestive system in human beings busy at work - our internal organs skeletal and digestive system from tasting to digestion types of ecological pyramids introduction to human digestive system

Which of the following is not produced in the stomach?

  1. Sodium hydrogencarbonate

  2. Gastrin

  3. Hydrochloric acid

  4. Pepsinogen
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

  1. The stomach produces gastrin, hydrochloric acid and pepsinogen.
  2. G-cells in the stomach releases gastrin in response to distension of the antrum. This, in turn, causes an increase in the secretion of HCl from the parietal cells or oxyntic cells, which kills or inhibits bacteria and provides the acidic pH for the proteases to work and pepsinogen is released from chief cells in the stomach called zymogenic cells or peptic cells. 
  3. Pepsinogen, inactive form of the enzyme in presence of hydrochloric acid activates into the active form, pepsin. Pepsin breaks down proteins into polypeptides. Hence, sodium hydrogen carbonate is not produced in the stomach.
So, the correct answer is 'sodium hydrogen carbonate'.

Multiple choice bio-chemistry the muscular system and digestive system in human beings busy at work - our internal organs skeletal and digestive system from tasting to digestion types of ecological pyramids introduction to human digestive system

Disorders of digestive system
In which of the following order, the process of digestion proceeds? 

  1. Digestion $\rightarrow$ Ingestion $\rightarrow$ Absorption $\rightarrow$

    Assimilation $\rightarrow$ Egestion
  2. Digestion $\rightarrow$ Ingestion $\rightarrow$ Assimilation $\rightarrow$ Absorption $\rightarrow$ Egestion
  3. Ingestion $\rightarrow$ Digestion $\rightarrow$ Assirhilation $\rightarrow$ Absorption $\rightarrow$ Egestion
  4. Ingestion $\rightarrow$ Digestion $\rightarrow$ Absorption $\rightarrow$ Assimilation $\rightarrow$ Egestion
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The correct sequence of nutrition is Ingestion (taking in food), Digestion (breaking it down), Absorption (taking nutrients into the blood), Assimilation (using nutrients), and Egestion (removing waste).

Multiple choice bio-chemistry the muscular system and digestive system in human beings busy at work - our internal organs skeletal and digestive system from tasting to digestion types of ecological pyramids introduction to human digestive system

Which of these is a part of your digestive system? 

  1. Stomach

  2. Pancreas

  3. Rectum

  4. All of the above
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

All of these choices are a part of your digestive system. Your digestive system has many other associated organs including the small intestine, large intestine, and liver. The stomach is an area of food digestion. The pancreas releases hormones that affect the digestive process. The rectum is the last place you store you food before the process of elimination (pooping).

Multiple choice bio-chemistry the muscular system and digestive system in human beings busy at work - our internal organs skeletal and digestive system from tasting to digestion types of ecological pyramids introduction to human digestive system

Choose the correct answers from the alternatives given.
In Paramecium, the phenomenon of cyclosis is associated with

  1. digestion

  2. excretion

  3. locomotion

  4. reproduction
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Cyclosis is the movement in the fluid in the cytoplasm where the proteins and nutrient in the cytoplasm get digested.

So, the correct option is 'digestion'.