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Test: Zoology Mock Test - 4 - NEET MCQ


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30 Questions MCQ Test - Test: Zoology Mock Test - 4

Test: Zoology Mock Test - 4 for NEET 2024 is part of NEET preparation. The Test: Zoology Mock Test - 4 questions and answers have been prepared according to the NEET exam syllabus.The Test: Zoology Mock Test - 4 MCQs are made for NEET 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Test: Zoology Mock Test - 4 below.
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Test: Zoology Mock Test - 4 - Question 1

Statement I : Exocrine glands secrete mucus, saliva, earwax, oil, milk, digestive enzymes and other cell products.
Statement II : Their products are secreted directly into the fluid bathing the gland. 

Detailed Solution for Test: Zoology Mock Test - 4 - Question 1

(II) Products of exorine glands are released through ducts or tubes.

Test: Zoology Mock Test - 4 - Question 2

Stanley L. M iller conducted experim ents before 1953 on prebiotic earth environment using special apparatus.The primary surprising products were

Detailed Solution for Test: Zoology Mock Test - 4 - Question 2

A British scientist, J.B.S. Haldane, suggested that life originated from simple inorganic molecules. Two scientists, Stanley Miller and Harold Urey were the first to put to test, the Oparin - Haldane theory, in the year 1953. They created a condition similar to that of primitive earth (i.e. high temperature, volcanic storms, reducing atmosphere) containing ammonia (NH3), water vapour (H2O), hydrogen (H,), methane (CH4). They made electric discharge in a closed flask containing CH4, NH3, H2 and water vapour at 800° C. As a result, some amino acids are formed.

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Test: Zoology Mock Test - 4 - Question 3

Atmosphere of earth just before the origin of life consisted of

Detailed Solution for Test: Zoology Mock Test - 4 - Question 3

The primitive atmosphere was reducing due to lack of free molecular oxygen. The early atmosphere contained ammonia (NH3), water vapour (H2O), hydrogen (H2), methane (CH4).

Test: Zoology Mock Test - 4 - Question 4

Analogous organs are

Detailed Solution for Test: Zoology Mock Test - 4 - Question 4

The analogous organs are different in origin or basic plan, but have similar functions or adaptations. Wings ofbutterfly and wings of bird and fins of fishes and flippers of whale are some of the examples of analogous organs.

Test: Zoology Mock Test - 4 - Question 5

Which of the following organisms are known as chief producers in the oceans?

Detailed Solution for Test: Zoology Mock Test - 4 - Question 5

Diatoms are the most common form of phytoplankton in the ocean. They have the pigment chlorophyll which helps in photosynthesis.
Since, they are the primary producers of the aquatic food chain and the marine ecosystem depends on them. They are called chief producers in the oceans.

Test: Zoology Mock Test - 4 - Question 6
Which of the following is not an area that contains lymph nodes?
Test: Zoology Mock Test - 4 - Question 7

In human, testosterone is produced by

Detailed Solution for Test: Zoology Mock Test - 4 - Question 7

Leydig (interstitial) cells in the inter-tubular spaces are stimulated to secrete male sex hormone called androgens (mainly testosterone), under the influence of ICSH of anterior pituitary.

Test: Zoology Mock Test - 4 - Question 8
Dengue is caused by
Test: Zoology Mock Test - 4 - Question 9

Deficiency of vasopressin primarily results in

Detailed Solution for Test: Zoology Mock Test - 4 - Question 9

Deficiency of ADH (vasopressin) causes diabetes insipidus (increased volume of urine). It is caused due to decreased reabsorption of water from collecting tubules.

Test: Zoology Mock Test - 4 - Question 10

MSH is secreted by

Detailed Solution for Test: Zoology Mock Test - 4 - Question 10

Melanocyte Stimulating Hormone (MSH) is secreted by pars intermedia. MSH acts on melanocytes to regulate pigmentation of skin.

Test: Zoology Mock Test - 4 - Question 11

Increased secretion of which hormone start the process of sperm formation at the time of puberty?

Detailed Solution for Test: Zoology Mock Test - 4 - Question 11

Gonadotropin-releasing hormone (GnRH) is released from the anterior pituitary. GnRH activity is very low during childhood, and is activated at puberty or adolescence. At the puberty increased secretion of GnRH start the process of sperm formation.

Test: Zoology Mock Test - 4 - Question 12

In the process of spermatogenesis, first maturation division is called_______.

Detailed Solution for Test: Zoology Mock Test - 4 - Question 12

The immature male germ cells or primary spermatocyte duplicate s its DNA and subsequently undergoes meiosis I which is a reductional division to produce two haploid secondary spermatocytes.

Test: Zoology Mock Test - 4 - Question 13

Who proposed that the first form of life come from preexisting non- living molecules?

Detailed Solution for Test: Zoology Mock Test - 4 - Question 13

Oparin and Haldane of England proposed that the first form of life come from pre-existing nonliving molecules (eg, RNA, protein etc. and that formation of life was preceded by chemical evolution i.e. formation of diverse organic molecule from inorganic molecules.

Test: Zoology Mock Test - 4 - Question 14

After birth, colostrum is released from mammary glands which is rich in

Test: Zoology Mock Test - 4 - Question 15
Melanocyte stimulating hormone(MSH) is secreted by pituitary
Test: Zoology Mock Test - 4 - Question 16
Air pressure is reduced inside the thoracic cavity when
Test: Zoology Mock Test - 4 - Question 17

The fibres of which of the following muscles are fusiform and do not show striations

Detailed Solution for Test: Zoology Mock Test - 4 - Question 17

Cells of smooth muscle tissue are spindle shaped and pointed at their ends. Striations are absent due to different arrangement of actin and myosin filaments. Smooth muscle is the earliest form of muscle to evolve.

Test: Zoology Mock Test - 4 - Question 18

What type of body symmetry do roundworms exhibit?

Detailed Solution for Test: Zoology Mock Test - 4 - Question 18

Roundworms exhibit bilateral symmetry, which means that their bodies can be divided into two identical halves along a single plane. This characteristic symmetry allows for a clear front and back as well as a top and bottom, aiding in their movement and sensory perception.

Test: Zoology Mock Test - 4 - Question 19

Intercalated discs are the communication junctions between the cells of

Detailed Solution for Test: Zoology Mock Test - 4 - Question 19

Cardiac muscles are involuntary, cross striated & non-fatigued fibres. Cell junctions fuse the plasma membranes of cardiac muscle cells and make them stick together. Communication junctions (intercalated discs) at some fusion points allow the cells to contract as a unit, i.e., when one cell receives a signal to contract, its neighbouring cells are also stimulated to contract.

Test: Zoology Mock Test - 4 - Question 20
Blood is brought to the glomerulus by the
Test: Zoology Mock Test - 4 - Question 21

Select the wrong statement.

Detailed Solution for Test: Zoology Mock Test - 4 - Question 21

Diatoms are marine or freshwater unicellular organisms which have cell walls  composed of pectin impregnated with silica and consisting of two halves, one overlapping the other. The siliceous frustules of diatoms do not decay easily.

Test: Zoology Mock Test - 4 - Question 22
Members of the phylum Porifera are
Test: Zoology Mock Test - 4 - Question 23

In humans, male germs cells differentiate into_____at the end of first meiotic division.

Detailed Solution for Test: Zoology Mock Test - 4 - Question 23

Each primary spermatocyte duplicates its DNA and subsequently undergoes meiosis I to produce two equal, haploid secondary spermatocytes. Each of the two secondary spermatocytes further undergoes meiosis II to produce two haploid spermatids.
Therefore, total four equal, haploid spermatids are producted after second meiotic division.

Test: Zoology Mock Test - 4 - Question 24
Alkaptonuria is caused by :
Test: Zoology Mock Test - 4 - Question 25

Smooth muscles are______.

Detailed Solution for Test: Zoology Mock Test - 4 - Question 25

Smooth muscle is an involuntary, spindle shaped, uninucleated, tapering and non-striated muscle. Smooth muscle is responsible for the contractility of hollow organs, such as blood vessels, the gastrointestinal tract, the bladder, or the uterus. Its structure differs greatly from that of skeletal muscle, although it can develop isometric force per cross sectional area which is equal to that of skeletal muscle.

Test: Zoology Mock Test - 4 - Question 26
Hormone connected with concentration of urine or reabsorption of water by nephron is
Test: Zoology Mock Test - 4 - Question 27

How do hormones that interact with membrane-bound receptors typically affect target cells?

Detailed Solution for Test: Zoology Mock Test - 4 - Question 27

Hormones that interact with membrane-bound receptors do not enter the target cell directly but instead generate second messengers, such as cyclic AMP, IP3, or calcium, which then regulate cellular metabolism. This process allows for rapid and widespread cellular responses to hormonal signals.

Test: Zoology Mock Test - 4 - Question 28

Secretion of estrogen is controlled by

Detailed Solution for Test: Zoology Mock Test - 4 - Question 28

Secretion of estrogen is stimulated by FSH of anterior pituitary gland.

Test: Zoology Mock Test - 4 - Question 29

Which one belongs to Monera?

Detailed Solution for Test: Zoology Mock Test - 4 - Question 29

All prokaryotic organisms come under Kingdom Monera. Escherichia coli is a bacterium. Monera includes bacteria, mycoplasmas, cyanobacteria (blue green algae) and actinomycetes.

Test: Zoology Mock Test - 4 - Question 30
Movement of fluids from the glomerulus’s to Bowman’s capsule is due to
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