Dear Readers,

NEET is the most famous and important medical entrance examination held in our country. This exam is an objective type, an offline test which includes 4 sections namely– Physics, Chemistry, Botany, and Zoology. The maximum marks that can be scored are 720 marks and have 180 questions.

About half of the paper consists of questions from Biology, as the NEET exam essentially focuses on capacitating students to go for seats in medical courses. One of the most significant and crucial sections in the NEET exam is of Biology. It comprises of theories, descriptions, discoveries, diagrams, definitions, explanations of differences, and relations. The majority of the topics covered in the NEET syllabus are from the NCERT syllabus of Class 11 & 12 and other related sources become part of the rest of the syllabus.

Clear Exam curates a list of articles selected by professionals who recommend the highly vital topics for NEET exams. The table below takes you directly to the respective topic where the in-depth article and the MCQs are available for an easy and productive learning experience. Prior to solving NEET question papers or practicing mock tests, you must ensure to study the basic concepts in NEET and practice a few sample questions related to this exam. Students will be covered for all their studies as the topics are available from basics to even the most advanced. 

Q1. Jacobson’s organs which are additional olfactory organs are present in:
  •  Rat
  •  Snakes
  •  Man
  •  All of these
Jacobson’s organ are present in all but they are well developed in snakes and lizards. It is an auxillary olfactory sense organ located in the vomer bones, between the nose and the mouth.

Q2. Which of the following are true to the prototherians?
I.Pectoral girdle is associated with T-shaped interclavicle.
II.Mammary glands are modified as sebaceous glands.
III.Pelvic girdle possesses epipubic bones.
IV.Vertebrae are with epiphyses.
  •  I and III
  •  I and II
  •  III and IV
  •  II and III
T-shaped interclavicle in the pectoral girdle is the reptilian character present in prototheria. The pelvic girdle of prototherian possesses epipubic bones.

Q3. During its life cycle, Fasciola hepatica (liver fluke) infects its intermediate host and primary host at the following larval stages, respectively:
  •  Metacercaria and cercaria
  •  Miracidum and Metacercaria
  •  Redia and miracidium
  •  Cercaria and redia
Fasciola hepatica infects its intermediate host at miracidum stage and its primary host at metacercaria stage.

Q4. Excretory organs in Taenia are:
  •  Flame cells
  •  Nephridia
  •  Nephrons
  •  Kidneys
The excretory system of Taenia solium consists of lateral longitudinal canals, secondary canals, capillaries and flame cells.

Q5. In the given diagram, what does ‘A’ represent?

  •  Heart
  •  Lateral vessel
  •  Ventral vessel
  •  Dorsal vessel
It represent the dorsal blood vessel of earthworm. It is the largest blood vessel. Behind the 13th segment, it is collecting vessel and between 1- 3, it is distributing vessel.

Q6. Which one of the following feature is common to leech, cockroach and scorpion?
  •  Nephridia
  •  Ventral nerve cord
  •  Cephalization
  •  Antennae
Ventral nerve cord is common to leech (Annelida), cockroach and scorpion (Arthropoda).

Q7. Lateral line sense organs occur in:
  •  Salamander
  •  Frog
  •  Water snake
  •  Scoliodon
In Scoliodon (dog fish), a faint lateral line runs along either lateral side of trunk and tail and over the head region. It contains special receptor organ.

Q8. Which type of cells absent in sponges?
  •  Trophocytes
  •  Myocytes
  •  Archaeocytes
  •  Cnidocytes
Cnidocytes or stinging cells are spherical or oval cells found in entire epidermis except that of basal disc and are found only in cnidarians. Archaeocytes, trophocytes and myocytes are found in sponges.

Q9. Which is a condition that in connected in the both external and internal structures and it is first found in which phylum of the animal kingdom:
  •  Mutagenesis-Platyhelminthes
  •  Metagenesis-Coelenterata
  •  Appendages-Arthropoda
  •  Metamerism-Annelida
A condition that is connected with both internal and external structures is true segmentation or metamerism. It first appears in phylum-Annelida

Q10. Nephridia in Pheretima are formed from:
  •  Mesenchyme
  •  Endoderm
  •  Mesoderm
  •  Ectoderm
In Pheretima, nephridia are excretory organs. These are found in all body segments except the first two. These are originated from ectoderm.

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