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VITEEE: Subject Wise and Full Length VITEEE Biology Test - 7 Free Online


MCQ Practice Test & Solutions: VITEEE Biology Test - 7 (40 Questions)

You can prepare effectively for JEE VITEEE: Subject Wise and Full Length MOCK Tests with this dedicated MCQ Practice Test (available with solutions) on the important topic of "VITEEE Biology Test - 7". These 40 questions have been designed by the experts with the latest curriculum of JEE 2026, to help you master the concept.

Test Highlights:

  • - Format: Multiple Choice Questions (MCQ)
  • - Duration: 50 minutes
  • - Number of Questions: 40

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VITEEE Biology Test - 7 - Question 1
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Which hormone is primarily involved in the regulation of blood calcium levels?

Detailed Solution: Question 1

Parathormone, also known as parathyroid hormone (PTH), is primarily involved in the regulation of blood calcium levels. It increases blood calcium levels by stimulating bone resorption and increasing the absorption of calcium in the intestines and kidneys.

Topic in NCERT: Parathyroid Gland

Line in NCERT: "Parathyroid hormone (PTH) increases the Ca2+ levels in the blood."

VITEEE Biology Test - 7 - Question 2
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Assertion (A): Competitive inhibitors bind to the active site of an enzyme, preventing substrate binding.

Reason (R): Competitive inhibition can be overcome by increasing the concentration of the substrate.

Detailed Solution: Question 2

- The Assertion is correct because competitive inhibitors indeed bind to the active site of an enzyme, which prevents the substrate from binding.

- The Reason is also correct as increasing the substrate concentration can outcompete the inhibitor for the active site, thereby restoring enzyme activity.

- Additionally, the Reason effectively explains the Assertion as it describes how competitive inhibition can be mitigated, confirming that both statements are true and that the Reason is the correct explanation for the Assertion.

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VITEEE Biology Test - 7 - Question 3
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Match the following organisms with their characteristics:

Detailed Solution: Question 3

A-ii: Amoeba moves and feeds using pseudopodia.
B-iii: Euglena contains chlorophyll and can perform photosynthesis.
C-i: Plasmodium is the parasite responsible for malaria.
D-iv: Yeast is utilized in the fermentation process for making bread and beer.

VITEEE Biology Test - 7 - Question 4
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Implantation of fertilised egg or young embryo occurs under the influence of

Detailed Solution: Question 4

Progesterone is a steroid hormone that is responsible for preparing the endometrium for uterine implantation of the fertilized egg.

VITEEE Biology Test - 7 - Question 5
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Bony fishes are

Detailed Solution: Question 5

Bony fish and aquatic amphibians are ammonotelic because this method of excretion uses the least energy.

VITEEE Biology Test - 7 - Question 6
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The given pyramid best represents

Detailed Solution: Question 6

Pyramid of numbers in a forest ecosystem is spindle shaped. In a forest ecosystem, number of producers is lesser but supports a greater number of herbivores. Which in turn support a fewer number of carnivores. This results in spindle shaped structure of pyramid of numbers.

VITEEE Biology Test - 7 - Question 7
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Identify the biomolecule shown in the structural diagram given below.

Detailed Solution: Question 7

The given molecule is adenylic acid. It is a nucleotide found in RNA. It is an ester of phosphoric acid with the nucleoside adenosine. It consists of a phosphate group, a pentose sugar ribose, and the nucleobase adenine.

VITEEE Biology Test - 7 - Question 8
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In Cockroach, ootheca is produced by secretion of

Detailed Solution: Question 8

In cockroach, a pair of much branched accessory or colleterial glands lies behind and above the ovaries. Secretion of the colleterial glands forms the hard egg case or ootheca around groups of eggs.

VITEEE Biology Test - 7 - Question 9
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Given below are the partial pressures (in mmHg) of oxygen and carbon dioxide at different parts involved in diffusion in comparison to those in the atmosphere.

Choose the correct option w.r.t. the values of partial pressures (in mmHg) marked as A, B, C and D

Detailed Solution: Question 9

VITEEE Biology Test - 7 - Question 10
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Assertion (A): Myosin and actin filaments slide past each other during muscle contraction.

Reason (R): The sliding filament theory explains the mechanism of muscle contraction.

Detailed Solution: Question 10

The assertion and reason are both true, and the reason correctly explains the assertion. The sliding filament theory describes how the actin (thin) and myosin (thick) filaments slide past each other, shortening the sarcomere and causing muscle contraction.

Topic in NCERT: Muscle Contraction and the Sliding Filament Theory

Line in NCERT: "These cross bridges pull the actin filaments causing them to slide over the myosin filaments and thereby causing contraction."

VITEEE Biology Test - 7 - Question 11
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Which one of the following is the correct matching of three items and their grouping category?

Detailed Solution: Question 11

The pelvic girdle is formed by two innominate bones consists of three separate bones ilium, ischium and the pubis.

VITEEE Biology Test - 7 - Question 12
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Which of the following best describes the function of the centrioles in animal cells?

Detailed Solution: Question 12

Centrioles play a crucial role in cell division in animal cells by organizing the mitotic spindle. These cylindrical structures help in the formation of spindle fibers that separate chromosomes during cell division.

VITEEE Biology Test - 7 - Question 13
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Match the following

Detailed Solution: Question 13

  • A. Thylakoids are described as flat membranous sacs, but specifically, they are located within the chloroplasts, not the Golgi apparatus. The correct match here would be (iii) Flat membranous sacs in stroma, which more accurately describes the location of thylakoids in the chloroplast stroma.

  • B. Cristae are the infoldings in mitochondria, where the mitochondrial membrane is folded inward to increase the surface area. Therefore, the correct match is (iv) Infolding in mitochondria.

  • C. Cisternae are flat membranous sacs found in the Golgi apparatus. Thus, the correct description is (i) Disc-shaped sacs in Golgi apparatus.

  • D. Chromatin refers to the material of which chromosomes are composed, including DNA and proteins. It represents the condensed structure of DNA, so it matches with (ii) Condensed structure of DNA.

  • A with iii
  • B with iv
  • C with i
  • D with ii

VITEEE Biology Test - 7 - Question 14
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Which part of the brain is involved in thermoregulation?

Detailed Solution: Question 14

.The hypothalamus plays a crucial role in thermoregulation, the process of maintaining the body's core internal temperature. It acts as the body's thermostat, detecting changes in temperature and initiating responses to heat or cool the body as necessary. The hypothalamus receives input from temperature receptors in the skin and other parts of the body and then activates mechanisms to adjust the temperature, such as sweating, shivering, and altering blood flow to the skin. An interesting fact about the hypothalamus is that it also regulates many other vital bodily functions, including hunger, thirst, sleep, and emotional activity.

Topic in NCERT: Hypothalamus and its Functions

Line in NCERT: "The hypothalamus contains a number of centres which control body temperature, urge for eating and drinking."

VITEEE Biology Test - 7 - Question 15
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Roots developed from parts of the plant other than radicle are called

Detailed Solution: Question 15

Some roots, called adventitious roots, arise from an organ other than the root—usually a stem, sometimes a leaf. They are especially numerous on underground stems, such as rhizomes, corms, and tubers, and make it possible to vegetatively propagate many plants from stem or leaf cuttings.

Topic in NCERT: THE ROOT

Line in NCERT: "In some plants, like grass, Monstera and the banyan tree, roots arise from parts of the plant other than the radicle and are called adventitious roots."

VITEEE Biology Test - 7 - Question 16
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Given below are three statements (A-B) each with one or more blanks. Select the option which correctly fills the blanks in the statements Statements:

A.Bioactive molecule, ________ is used as immunosuppressive agent in organ transplant patients, It is produced by the fungus ________.
B.Primary treatment of sewage involves physical removal of small and large particles through ________.

Detailed Solution: Question 16

bioactive molecule, cyclosporin A, that is used as an immunosuppressive agent in organ-transplant patients, is produced by the fungus Trichoderma polysporum.
Primary treatment : These treatment steps basically involve physical removal of particles – large and small – from the sewage through filtration and sedimentation

VITEEE Biology Test - 7 - Question 17
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Which one of the following does not act as a neurotransmitter ?

Detailed Solution: Question 17

Epinephrine or adrenaline, norepinephrine or noradrenaline and acetylchloline are the neurotransmitters. These are released by the nerve fibres to transmit the impulse to the next neuron. Cortisone is not the neurotransmitter.

VITEEE Biology Test - 7 - Question 18
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Which phase of meiosis is characterized by the separation of sister chromatids?

Detailed Solution: Question 18

Anaphase II of meiosis is characterized by the separation of sister chromatids, similar to anaphase in mitosis. During Anaphase I, homologous chromosomes are separated, but the sister chromatids remain attached. It is not until Anaphase II that these chromatids are finally pulled apart and move towards opposite poles, leading to the formation of haploid daughter cells.

VITEEE Biology Test - 7 - Question 19
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Match the source gland with respective hormone as well as the function correctly.

Detailed Solution: Question 19

Posterior pituitary releases vasopressin which stimulates reabsorption of water in the distal tubules in nephron.

VITEEE Biology Test - 7 - Question 20
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According to Hardy - weinberg principle, the frequency of homozygous recessive (aa) individuals in a population is denoted by

 

Detailed Solution: Question 20

In a diploid, p and q represent the frequency of allele A and allele a. The frequency of AA individuals in a population is simply p2 . This is simply stated in another ways, i.e., the probability that an allele A with a frequency of p appear on both the chromosomes of a diploid individual is simply the product of the probabilities, i.e., p2 . Similarly of aa is q2 , of Aa 2pq. Hence, p 2+2pq+q2=1. This is a binomial expansion of (p+q)2

VITEEE Biology Test - 7 - Question 21
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The enlarged end of penis is covered by a loose fold of skin is called.

Detailed Solution: Question 21

Foreskin is a double-layered fold of smooth muscle tissue, blood vessels, neurons, skin, and mucous membrane that covers and protects the glans penis and the urinary meatus when the penis is not erect.
The foreskin is mobile, fairly stretchable, and acts as a natural lubricant.

VITEEE Biology Test - 7 - Question 22
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Which of the following experiments provided evidence for the abiotic synthesis of organic molecules?

Detailed Solution: Question 22

The Miller-Urey experiment simulated early Earth conditions and demonstrated that organic molecules, including amino acids, could be synthesized abiotically. This experiment is crucial for understanding the chemical origins of life.

VITEEE Biology Test - 7 - Question 23
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Synaptonemal complex appears during

Detailed Solution: Question 23

The synaptonemal complex (SC) is a protein structure that forms between homologous chromosomes (two pairs of sister chromatids) during meiosis and is thought to mediate chromosome pairing, synapsis, and recombination.

Topic in NCERT: Prophase I

Line in NCERT: "Electron micrographs of this stage indicate that chromosome synapsis is accompanied by the formation of complex structure called synaptonemal complex."

VITEEE Biology Test - 7 - Question 24
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Plasma membrane is made up of

Detailed Solution: Question 24

All cells are surrounded by a plasma membrane. The membrane is composed of a phospholipid bilayer arranged back-to-back. The membrane is also covered in places with cholesterol molecules and proteins. The plasma membrane is selectively permeable and regulates which molecules are allowed to enter and exit the cell.

Topic in NCERT: Phospholipids

Line in NCERT: "Phospholipids contain, in addition, a phosphorylated nitrogenous compound."

VITEEE Biology Test - 7 - Question 25
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A mineralocorticoid is

Detailed Solution: Question 25

Aldosterone is a mineralocorticoid which maintains the salt water balance in the body.

Testosterone, progesterone and androgen are corticosteroids.

VITEEE Biology Test - 7 - Question 26
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Which of the following type of reproduction occurs in sponges?

Detailed Solution: Question 26

Reproduction through fragmentation is observed in sponges, some cnidarians, turbellarians, echinoderms, and annelids.

VITEEE Biology Test - 7 - Question 27
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What hormone is responsible for regulating the metabolic rate of the body?

Detailed Solution: Question 27

Thyroxine, secreted by the thyroid gland, is responsible for regulating the metabolic rate of the body. It influences how fast or slow the cells in your body convert nutrients into energy, affecting overall metabolism.

Topic in NCERT: Thyroid Gland

Line in NCERT: "Thyroid hormones play an important role in the regulation of the basal metabolic rate."

VITEEE Biology Test - 7 - Question 28
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Which artery is the only one that carries deoxygenated blood?

Detailed Solution: Question 28

The pulmonary artery is unique because it is the only artery that carries deoxygenated blood. It transports blood from the right ventricle of the heart to the lungs for oxygenation. This is an exception to the rule that arteries carry oxygenated blood away from the heart, highlighting the specialized nature of the pulmonary circulation.

Topic in NCERT: DOUBLE CIRCULATION

Line in NCERT: "The deoxygenated blood pumped into the pulmonary artery is passed on to the lungs from where the oxygenated blood is carried by the pulmonary veins into the left atrium."

VITEEE Biology Test - 7 - Question 29
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Graffian follicle are characteristically found in the

Detailed Solution: Question 29

  • Ovarian follicles are the essential units of the female reproductive biology of mammals, each of which is packed with roughly spherical aggregations of cells found in the ovary.
  • A Graafian follicle, or ovarian follicle, is present inside an ovary and is a minute cyst within which an egg, or ovum, develops.
  • A Graafian follicle is a follicle that ruptures and releases its ovum when stimulated. Generally, women are born with many undeveloped follicles, each containing an immature ovum.
  • As soon as puberty is attained and menstruation commences, one ovum matures each month inside its containing follicle.
  • The follicle grows bigger and breaks at around day 14 of the cycle, discharging the ovum in a process known as ovulation.

VITEEE Biology Test - 7 - Question 30
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Terminalisation occurs during

Detailed Solution: Question 30

The two homologous chromosomes do not completely separate but remain attached together at one or more points as indicated by X arrangements known as Chiasmata.The displacement of Chiasmata is termed as terminalization.Terminalization is completed in Diakinesis stage.

Topic in NCERT: Prophase I

Line in NCERT: "The final stage of meiotic prophase I is diakinesis. This is marked by terminalisation of chiasmata."

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This test contains 40 MCQs on VITEEE Biology Test - 7 with detailed solutions for each question. It is part of the VITEEE: Subject Wise and Full Length MOCK Tests course on EduRev, designed to align with the current JEE syllabus. Each solution explains not just the correct answer but also gives you an understanding of the topic — not just to attempt the question but also help you prepare for the exam with practice.

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