Category: NEET Biology Objective Questions

NEET Biology is the vey important paper in the medical entrance exam. Here, you will discover the NEET Biology MCQs and Answers for all Concepts as per the latest syllabus. Practice more on a regular basis with these NEET Biology objective questions on air pollution . NEET Biology Homeostasis Multiple Choice Questions

MCQs on Homeostasis :

1. Liver functions are pivotal to
(a) osmoregulation
(b) thermoregulation
(c) homeostasis
(d) all of these

Answer

Answer: (c)

2. During catabolism of amino acids, the release of amino group is known as
(a) deamination
(b) hydrolysis
(c) ammunition
(d) hydration

Answer

Answer: (a)

3. The only treatment in case of uremia is
(a) dialysis
(b) lithotripsy
(c) lung transplant
(d) kidney transplant

Answer

Answer: (d)

4. This type of nephron is best to conserve water in body
(a) Juxtamedullary nephrons
(b) cortical nephrons
(c) both (a) and (b)
(d) serotical nephrons

Answer

Answer: (a)

5. This is responsible for production of concentrated urine
(a) proximal tubule
(b) cortical nephrons
(c) distal tubule
(d) juxtamedullary nephron

Answer

Answer: (d)

6. This nephron segment is not permeable to water even in the presence of ADH
(a) Collecting duct
(b) descending limb of loop of Henle
(c) ascending limb of loop of Henle
(d) both (b) and (c)

Answer

Answer: (c)

7. Leaves fall of helping in plant to get rid of accumulated wastes hence known as
(a) ebony
(b) sacrifice
(c) excretophore
(d) helper

Answer

Answer: (c)

8. Active uptake of sodium is promoted by action of enzyme known as
(a) adrenatrone
(b) aldosterone
(c) antidiuretic
(d) diuretic

Answer

Answer: (b)

9. The vertebral column provides more strength as a result of 4
(a) burantals
(b) appendanges
(c) frontals
(d) curvatures

Answer

Answer: (d)

10. Dogs have specialized evaporative cooling in the respiratory tract by
(a) woofing
(b) licking
(c) panting
(d) sleeping

Answer

Answer: (c)

11. This statement about Homeostasis is incorrect
(a) because of this, the fluctuations of the internal environment are of extremely narrow range as compared to that of the external environment
(b) there is a definite control system regulating the homeostatic activities
(c) homeostatic mechanisms keep the internal environment fixed despite wide changes in the external environment
(d) all the above

Answer

Answer: (c)

NEET Biology is the vey important paper in the medical entrance exam. Here, you will discover the NEET Biology MCQs and Answers for all Concepts as per the latest syllabus. Practice more on a regular basis with these NEET Biology objective questions on air pollution . NEET Biology Epiphytes Multiple Choice Questions

MCQs on Epiphytes :

1. The presence of epiphytic roots is the characteristic feature of
(a) Cuscuta, in which haustoria is present
(b) Pinus, in which mycorrhizal association is present
(c) Orchids, in which velamen tissue is present
(d) Jussiaea, in which floating roots are present

Answer

Answer: (c)

2. Epiphytes like Vanda develop special layer of absorptive tissue velamen consisting of 4 or 5 layer os long polygonal cells. Velamen is formed by
(a) Stem
(b) Absorbing roots
(c) Hanging roots
(d) Clinging roots

Answer

Answer: (c)

3. A plant with epidermis specialised to absorb moisture from air is
(a) Rhizophora
(b) Jussiaea
(c) Vanda
(d) Avicennia

Answer

Answer: (c)

4. Outer covering of epiphytic root is
(a) Velamen
(b) Rhizophore
(c) Osmophore
(d) Pneumatophore

Answer

Answer: (a)

5. A root cap is not found in the root of
(a) Stilt root of Pandanus
(b) Seminal roots
(c) Hanging prop root of Banyan
(d) Epiphytic roots

Answer

Answer: (d)

6. This is a function of velamen
(a) transpiration
(b) exchange of gases
(c) absorption of moisture from air
(d) absorption of water from soil

Answer

Answer: (c)

7. Epiphyllous roots in Begonia and Bryophyllum are
(a) Modified leaves
(b) Green roots
(c) Roots arising from leaves
(d) Roots bearing stem

Answer

Answer: (c)

8. Aerial absorptive roots occur in
(a) Mesophytes
(b) Epiphytes
(c) Xerophytes
(d) Hydrophytes

Answer

Answer: (b)

9. This root modification does not store food
(a) Napiform
(b) Tuberous
(c) Stilt
(d) Conical

Answer

Answer: (c)

10. Identify the correct statement
(a) Velamen roots attach to the soil
(b) In Cuscuta, velamen roots are present
(c) Velamen roots are tap roots
(d) Velamen roots are living

Answer

Answer: (d)

NEET Biology is the vey important paper in the medical entrance exam. Here, you will discover the NEET Biology MCQs and Answers for all Concepts as per the latest syllabus. Practice more on a regular basis with these NEET Biology objective questions on air pollution . NEET Biology Chromoplast Multiple Choice Questions

MCQs on Chromoplast :

1. Which of the following plastid is found in ripe fruits?
(a) chromoplast
(b) chloroplast
(c) leucoplast
(d) amyloplast

Answer

Answer: (a)

2. Anthocyanin pigments are
(a) water-insoluble and located in chromoplasts
(b) water-soluble and located in chloroplasts
(c) water-soluble and located in vacuoles
(d) water-insoluble and located in vacuoles

Answer

Answer: (c)

3. Chloroplast does not contain
(a) xanthophyll
(b) anthocyanin
(c) carotene
(d) chlorophyll ‘b’

Answer

Answer: (b)

4. Which of the following pigment impart a red colour to tomato?
(a) erythrocyanin
(b) anthocyanin
(c) 𝝱-carotene
(d) lycopene

Answer

Answer: (d)

5. Which of the following plastid doesn’t store food?
(a) aleuroplasts
(b) amyloplasts
(c) chromoplasts
(d) elaioplasts

Answer

Answer: (c)

6. Protein storing plastid is
(a) chromoplast
(b) elaioplast
(c) amyloplast
(d) aleuroplast

Answer

Answer: (d)

7. Which of the following pigment is present in carrots?
(a) 𝝱-carotene
(b) lycopene
(c) lutein
(d) fucoxanthin

Answer

Answer: (a)

8. Which of the plastid(s) contains carotenoids?
(a) leucoplast
(b) chloroplast
(c) chromoplast
(d) both (b) and (c)

Answer

Answer: (d)

9. In which of the following organelle, peptide synthesis takes place?
(a) ribosomes
(b) chromoplasts
(c) chloroplasts
(d) mitochondria

Answer

Answer: (a)

10. Colour of tomato changes from green to red due to
(a) chromoplast gets converted to the chloroplast
(b) chromoplast disappears and chloroplast is formed
(c) chloroplast gets converted to chromoplast
(d) chloroplast disappears and chromoplast is formed

Answer

Answer: (c)

NEET Biology is the vey important paper in the medical entrance exam. Here, you will discover the NEET Biology MCQs and Answers for all Concepts as per the latest syllabus. Practice more on a regular basis with these NEET Biology objective questions on air pollution . NEET Biology Symptoms Of Hyperthyroidism In Females Multiple Choice Questions

MCQs on Symptoms Of Hyperthyroidism In Females :

1. Rapid heartbeat, shortness of breath, high body temperature are the symptoms of ___________.
(a) Thyroid crisis
(b) Thyroid storm
(c) Thyroid failure
(d) Thyroid death

Answer

Answer: (b)

2. Thyroid disorders are often mistaken for this condition.
(a) Pregnancy
(b) Menopause
(c) Crohn’s disease
(d) Posttraumatic stress disease

Answer

Answer: (b)

3. A 35-years-old female present to the hospital with symptoms of sudden onset of pain in the anterior neck spreading to the jaw from the past 2 days. Other than these symptoms, she also reported a full recovery from ‘a cold a week ago’. Which of the following findings are not consistent with her diagnosis.
(a) Formation of microabscesses
(b) Dense fibrosis of the thyroid gland
(c) Neutrophilic filtration of thyroid
(d) Plasma cells aggregating around damaged thyroid follicles

Answer

Answer: (b)

4. A condition marked by low TSH levels is called ___________.
(a) Hypothyroidism
(b) Goitre
(c) Hyperthyroidism
(d) Thyroid cancer

Answer

Answer: (c)

5. A 30-year old female presents with fatigue, fever, swelling in the neck area along with pain and difficulty in swallowing. Upon diagnosing, tenderness on palpation of thyroid in elicited. The lab reports showed elevated ESR, elevated T4, T3, and thyroglobulin levels. The 24hrs RAIU report is lesser than 5 per cent. What is diagnosed according to the patient’s lab reports?
(a) Grave’s disease
(b) Subacute thyroiditis
(c) Hashimoto’s thyroiditis
(d) Acute infectious thyroiditis

Answer

Answer: (b)

6. Which of the following body function is regulated by the thyroid producing hormones?
(a) Digestion
(b) Temperature
(c) Metabolism
(d) Blood pressure

Answer

Answer: (c)

7. Rapid heart rate, weight loss, heat sensitivity are most likely the symptoms of _________
(a) Thyroid cancer
(b) Hyperthyroidism (overactive thyroid)
(c) Hypothyroidism (underactive thyroid)
(d) All of the above

Answer

Answer: (b)

8. Exophthalmic goitre is due to ________.
(a) Hyposecretion of thyrocalcitonin
(b) Hyposecretion of thyroxine
(c) Hypersecretion of thyroxine
(d) Hypersecretion of thyrocalcitonin

Answer

Answer: (c)

9. Which type of epithelium is found in thyroid follicles?
(a) Columnar
(b) Squamous
(c) Cuboidal
(d) Transitional

Answer

Answer: (c)

10. Which of the following is the major causative for Grave’s disease?
(a) Hyperactivity of thyroid gland
(b) Hyperactivity of adrenal cortex
(c) Hyperactivity of adrenal medulla
(d) Hyperactivity of the islets of Langerhans

Answer

Answer: (d)

NEET Biology is the vey important paper in the medical entrance exam. Here, you will discover the NEET Biology MCQs and Answers for all Concepts as per the latest syllabus. Practice more on a regular basis with these NEET Biology objective questions on air pollution . NEET Biology Pteridophyta Multiple Choice Questions

MCQs on Pteridophyta :

1. In which of the following groups would you place a plant that produces spores, lacks seeds and has vascular tissue?
(a) Bryophyte
(b) Algae
(c) Pteridophyte
(d) Gymnosperm

Answer

Answer: (c)

2. In Pteridophytes, the dominant generation is
(a) gametophytic
(b) haploid
(c) diploid
(d) triploid

Answer

Answer: (c)

3. Reduction division in pteridophytes occurs in
(a) Prothallus is formed
(b) Gametes are formed
(c) spores are formed
(d) sex organs are formed

Answer

Answer: (c)

4. Prothallus represents
(a) sporophytic phase in a fern
(b) gametophytic phase in a fern
(c) sporophytic phase in a gymnosperm
(d) gametophytic phase in a gymnosperm

Answer

Answer: (b)

5. Pteridophytes and Bryophytes differ in having
(a) Spermatozoids
(b) Archegonia
(c) Separate gametophytes
(d) conducting system

Answer

Answer: (d)

6. Which of the following is deemed to be vital in the development of seed habit?
(a) Heterospory
(b) Dependant sporophyte
(c) Free-living gametophyte
(d) Haplontic life cycle

Answer

Answer: (a)

7. Sporophytic and gametophytic phases are independent in
(a) Bryophytes
(b) Pteridophytes
(c) Phaeophytes
(d) Gymnosperms

Answer

Answer: (b)

8. ‘Club moss’ belongs to
(a) Fungi
(b) Algae
(c) Bryophyta
(d) Pteridophyta

Answer

Answer: (d)

9. Phloem is without ___________ in pteridophytes
(a) Bast fibres
(b) Companion cells
(c) Phloem parenchyma
(d) sieve cells

Answer

Answer: (b)

10. This group does not have seeds but has vascular tissues and produces spores
(a) Pteridophyta
(b) Bryophyta
(c) Angiosperms
(d) Gymnosperms

Answer

Answer: (a)

NEET Biology is the vey important paper in the medical entrance exam. Here, you will discover the NEET Biology MCQs and Answers for all Concepts as per the latest syllabus. Practice more on a regular basis with these NEET Biology objective questions on air pollution . NEET Biology Fermentation Process Multiple Choice Questions

MCQs on Fermentation Process :

1. Monascus purpureus is utilized in the production of
(a) citric acid
(b) ethanol
(c) statins
(d) streptokinase

Answer

Answer: (c)

2. The type of fermentation observed in yeasts is
(a) acrylic fermentation
(b) lactic acid fermentation
(c) pyruvic fermentation
(d) alcoholic fermentation

Answer

Answer: (d)

3. In lactic acid fermentation, the final electron acceptor is:
(a) Lactic acid
(b) Pyruvate
(c) Oxygen
(d) NAD

Answer

Answer: (b)

4. Which of these is not a product of fermentation?
(a) Lactate
(b) Oxygen
(c) Carbon dioxide
(d) Ethanol

Answer

Answer: (b)

5. Which of the following is not a vegetable or fruit-based fermented product?
(a) Wine
(b) Sauerkraut
(c) Beer
(d) Vinegar

Answer

Answer: (d)

6. One of the most commonly used fermented cereal amongst these is
(a) Wheat
(b) Bread
(c) Rice
(d) Yoghurt

Answer

Answer: (b)

7. Glucose molecule during the process of glycolysis is broken down into
(a) Four pyruvic acid
(b) Three pyruvic acid
(c) Two pyruvic acid
(d) One pyruvic acid

Answer

Answer: (c)

8. Fermentation occurs in the
(a) presence of oxygen
(b) absence of oxygen
(c) presence of nitrogen
(d) presence of carbon

Answer

Answer: (b)

9. The least yield of ATP is observed in
(a) aerobic respiration
(b) anaerobic respiration
(c) fermentation
(d) same in (a), (b), and (c)

Answer

Answer: (c)

10. Anaerobic respiration by yeast produces
(a) CO₂
(b) Wine and Beer
(c) Alcohol
(d) All of the above

Answer

Answer: (d)