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Quiz-14

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. Nails, hoofs and horns are examples of:
  •  Bone
  •  Cartilage
  •  Connective tissues
  •  Epidermal derivatives
Solution
Nails, hoofs and horns are examples of epidermal derivatives. Claws are modified into nails, which are characteristic of mammals. Hoofs are characteristic of ungulates. Horns are found in hoofed mammals (Artiodactyla and Perissodactyla) only. All the three (i.e., nails, hoofs and horns) are modification of stratum corneum.

Q2. The layer of cells forming tissue that appears to be multilayered but actually some of the cells extend from the basement membrane to the surface is:
  •  Simple columnar epithelium
  •  Pseudostratified epithelium
  •  Stratified columnar epithelium
  •  Stratified cuboidal epithelium
Solution
Pseudostratified epithelium always consists of a single layer of irregularly shaped columnar cells touching the basement membrane, i.e., the long cells with oval nuclei and short cells with rounded nuclei. Some of the cells (long cells) extend from the basement membrane to the surface. Hence, although epithelium is one cell thick but it appears to be multilayered or stratified, thus called Pseudostratified.

Q3. Bowman’s glands are located in the
  •  Proximal end of uriniferous tubules
  •  Anterior pituitary gland
  •  Female reproductive system of cockroach
  •  Olfactory epithelium of nose
Solution
Many olfactory glands (Bowman’s glands) occur below the olfactory epithelium that secrete mucus over the epithelium to keep it moist.

Q4. Which of the following is common British frog?
  •  Rana catesbeina
  •  Rana tigrina
  •  Rana temporaria
  •  Rana malabaricus
Solution
Rana temporaria is common British frog

Q5. During the process of blood coagulation, vitamin-K helps in the
  •  Formation of thromboplastin
  •  Formation of prothrombin/span>
  •  Conversion of prothrombin to thrombin
  •  Conversion of fibrinogen to fibrin
Solution
Vitamin-K (phylloquinone) is the anti-haemorrhagic vitamin or factor, reported and named by a Danish scientist, Dam as coagulation factor (Danish term), who got the Nobel Prize for it in 1943. It is necessary for the synthesis of prothrombin (the precursor of thrombin) in the liver for normal clotting of blood. Thus, vitamin-K helps in blood clotting, prevention of haemorrhage and excessive bleeding in wounds.

Q6. Heart of the frog is covered by a membrane called:
  •  Pericardium
  •  Plasma membrane
  •  Pleuromembrane
  •  Dura matter
Solution
Pericardium. A frog heart is solid muscular organ situated in the upper half of body cavity. It is three chambered with two auricles and one ventricle. The ventricle is incompletely divided by an interventricular spetum, while auricles are completely divided by interauricular spetum. Heart is covered by a membrane called pericardium. The potential space between heart and pericardium is called pericardial space. This space is fluid filled and the fluid here is called pericardial fluid. The heart of frog pumps mixed blood as lungs are not much functional is than and most of the oxygenation of blood takes place throngle skin.

Q7. Pick out the incorrectly matched pair from the following
  •  Sensory papillae – Touch
  •  Cloaca – Pass sperm and faecal matter
  •  Lymph – Contains RBC and proteins
  •  Buccal cavity – Respiratory organs
Solution
Lymph is the fluid filtered out from the blood capillaries. It lacks RBCs and proteins

Q8. The type of epithelial cells, which line the inner surface of fallopian tubes, bronchioles and small bronchi, are known as:
  •  Squamous epithelium
  •  Columnar epithelium
  •  Ciliated epithelium
  •  Cubical epithelium
Solution
The type of epithelial cells that line the inner surface of fallopian tubes, bronchioles and small bronchi, are known as ciliated epithelium.

Q9. Examples of specialised connective tissue is/are
  •  Bone
  •  Cartilage
  •  Blood
  •  All of these
Solution
Connective tissues ranges from soft connective tissues to specialised types, which includes cartilage, bone, and blood.

Q10. Which of the following statement is incorrect in relation to frog?
I. Development of frog is indirect II. Frog feeds on small insect, tadpole and smaller frogs III. Their croaking in the call for mating IV. They breeds in any season

  •  Only I
  •  II and III
  •  Only III
  •  Only IV
Solution
The frogs only breeds in rainy seasons

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