Tag: bio-chemistry

Questions Related to bio-chemistry


9 + 2 fibrillar arrangement is present in:

bio-chemistry unit of living - cell eukaryotic cell kinds of cell introduction to eukaryotic cell

  1. Bacterial flagella

  2. Bacterial fimbriae

  3. Eukaryotic flagella

  4. T4 bacteriophage

Show answer
Correct Option: C

Schneiderian membrane is found in

bio-chemistry digestive system of human digestive system - organs process of digestion coordination in the process of digestion

  1. loop of Henle

  2. trachea

  3. Bowman's capsule

  4. nasal mucosa

Show answer
Correct Option: D
Explanation:
In anatomy, the Schneiderian membrane is  the membranous lining of the maxillary sinus cavity. The part is exposed after surgical removal of membranous layer of mucosal cavity.

So, the correct option is D. 

What is the process of food passage from buccal cavity to the side of water and mineral absorption?

bio-chemistry digestive system of human digestive system - organs process of digestion coordination in the process of digestion

  1. Mouth $\rightarrow$ Buccal cavity $\rightarrow$ Pharynx $\rightarrow$ Oesophagus $\rightarrow$ Duodenum $\rightarrow$Stomach $\rightarrow$ Ileum $\rightarrow$ large intestine

  2. Mouth $\rightarrow$ Buccal cavity $\rightarrow$ Pharynx $\rightarrow$ Oesophagus $\rightarrow$ Stomach $\rightarrow$Duodenum $\rightarrow$ Ileum $\rightarrow$ Caecum $\rightarrow$Rectum

  3. Mouth $\rightarrow$Buccal cavity $\rightarrow$ pharynx $\rightarrow$ Larynx $\rightarrow$ Stomach $\rightarrow$ Small intestine $\rightarrow$Large intestine

  4. Mouth $\rightarrow$ Buccal cavity $\rightarrow$ Pharynx $\rightarrow$ Food $\rightarrow$ pipe $\rightarrow$ Stomach
    $\rightarrow$ Large intestine $\rightarrow$ Small intestine

Show answer
Correct Option: A

Tongue is made up of?

bio-chemistry digestive system of human digestive system - organs process of digestion coordination in the process of digestion

  1. Smooth muscles

  2. Skeletal muscles

  3. Both (A) and (B)

  4. Cartilage

Show answer
Correct Option: C
Explanation:

Answer : 
i) The tongue is composed of skeletal muscle fibers and smooth muscle fibers. 
ii) Unlike the cardiac muscle or smooth muscle of the organs and digestive system, skeletal muscle can be willingly controlled. 
iii) This allows for the tongue's mobility. 
iv) The muscles that lace throughout the organ secure it to surrounding bones and create the floor of the oral cavity. 
v) Mucous membrane covers the skeletal muscle and protects the body from microbes and pathogens.
vi) While muscularis mucosa is composed of a layer of smooth muscle fibers.

So the correct answer is option C. Both (A) and (B).

Tongue bone is?

bio-chemistry digestive system of human digestive system - organs process of digestion coordination in the process of digestion

  1. Mandible

  2. Hyoid

  3. Flat bone

  4. Coccyx

Show answer
Correct Option: A

Coelenterates are _________.

bio-chemistry digestive system of human digestive system - organs process of digestion coordination in the process of digestion

  1. Terrestrial

  2. Aquatic

  3. Aerial

  4. All of the above

Show answer
Correct Option: B

Find the odd one out.

bio-chemistry digestive system of human digestive system - organs process of digestion coordination in the process of digestion

  1. Saw fish

  2. Hyla

  3. Bombay duck

  4. Myxine

Show answer
Correct Option: D
Explanation:

Saw fish, Hyla and Bombay duck belong to super class: Pisces and Division: Gnathostomata. Myxine has circular sucking type of mouth belonging to Division: Agnatha.

The literal meaning of "gastrulation" is 

bio-chemistry digestive system of human digestive system - organs process of digestion coordination in the process of digestion

  1. Formation of primary germ layers

  2. Formation of a gut

  3. Morphogenetic movement

  4. Commencement of organogenesis

Show answer
Correct Option: B
Explanation:

'Gastrulation' word is derived from Greek word 'gaster' meaning stomach and according to McEwen (1923), gastrulation refers to the formation of the primordial gastric gut or cavity called the archenteron.

Which ones are absorbed in the alimentary canal without any breakdown?

bio-chemistry digestive system of human digestive system - organs process of digestion coordination in the process of digestion

  1. Proteins

  2. Polysaccharides

  3. Fat soluble vitamins

  4. Albumen of egg

Show answer
Correct Option: C

Base of tongue is sensitive to taste

bio-chemistry digestive system of human digestive system - organs process of digestion coordination in the process of digestion

  1. Salty

  2. Sweet

  3. Bitter

  4. Sour

Show answer
Correct Option: C
Explanation:

Tastes like sweet, salt, sour, bitter are sensed by all the sides of the tongue but the back of the tongue is very sensitive to bitter tastes.

So the correct option is 'Bitter.'