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 Heterotrophic Nutrition Multiple Choice Questions

MCQs on Heterotrophic Nutrition :

1. Absorptive heterotrophic nutrition is exhibited by
(a) fungi
(b) algae
(c) pteridophytes
(d) bryophytes

Answer

Answer: (a)

2. The mode of nutrition in which one organism obtains nutrition from other organisms is known as
(a) symbiosis
(b) autotrophic nutrition
(c) saprophytic nutrition
(d) heterotrophic nutrition

Answer

Answer: (d)

3. Heterotrophic nutrition is
(a) oxidation of glucose
(b) breakdown of glucose into energy
(c) utilization of energy obtained by plants
(d) all the above

Answer

Answer: (d)

4. The parasitic fungus which destroys wheat plant is
(a) lice
(b) leech
(c) cuscuta
(d) Puccinia

Answer

Answer: (d)

5. Assertion: mode of nutrition in higher animals is heterotrophic
Reason: Animals can use different trophic levels for heterotrophic nutrition
(a) if the assertion is true but reason is false
(b) if both assertion and reason are true and reason is correct explanation of assertion
(c) if both assertion and reason are false
(d) if both assertion and reason are true but reason is not correct explanation of assertion

Answer

Answer: (d)

6. The mutualistic association between certain fungi and roots of vascular plants are known as
(a) haustoria
(b) mycelium
(c) rhizoids
(d) mycorrhizae

Answer

Answer: (d)

7. What is the mode of nutrition in bacteria?
(a) heterotrophic
(b) autotrophic
(c) autotrophic and heterotrophic
(d) none of the above

Answer

Answer: (c)

8. Digestion of food in amoeba occurs in
(a) cytoplasm
(b) nucleus
(c) food vacuole
(d) none of the above

Answer

Answer: (c)

9. The mode of nutrition in fungi
(a) saprotrophic or parasitic
(b) only parasitic
(c) only saprotrophic
(d) none of above

Answer

Answer: (a)

10. A stable ecosystem is maintained with the interaction of
(a) predators
(b) prey
(c) animals-human
(d) predator-prey

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 Endoplasmic Reticulum and Golgi Body Multiple Choice Questions

MCQs on Endoplasmic Reticulum and Golgi Body :

1. This is the site where detoxification of xenobiotic compounds occurs
(a) Rough endoplasmic reticulum
(b) Ribosomes
(c) Cytosol
(d) Smooth endoplasmic reticulum

Answer

Answer: (d)

2. This is the function of Glycosylation
(a) helps in cell-cell adhesion
(b) confer stability in proteins
(c) helps in proper folding of protein
(d) synthesis of membrane lipid

Answer

Answer: (d)

3. This is a correctly matched pair
(a) Lysosomes – involved in synthesizing amino acids
(b) Microsomes – take part in photosynthesis
(c) Centrosomes – Provides enzymes essential for digestion
(d) Endoplasmic reticulum – has a role in the formation of a new nuclear membrane while cell divides

Answer

Answer: (d)

4. The endoplasmic reticulum in rapidly dividing cells is
(a) absent
(b) not functional
(c) poorly developed
(d) highly developed

Answer

Answer: (c)

5. The ER and bodies linked with it during ultracentrifugation are separated as a fraction known as
(a) Episome
(b) Polysome
(c) Microsome
(d) Quantasome

Answer

Answer: (c)

6. Sarcoplasmic reticulum is associated with
(a) Hormone synthesis
(b) Protein synthesis
(c) Release of calcium ions from muscle contractions
(d) None of the above

Answer

Answer: (c)

7. This is related to glycosylation of protein
(a) Lysosome
(b) Peroxisome
(c) Mitochondria
(d) ER

Answer

Answer: (d)

8. The transfer vesicle from RER fuse with which region of golgi complex
(a) Protein arms
(b) Medial
(c) Cis
(d) Trans

Answer

Answer: (c)

9. The main organelle involved in modification and routing of newly synthesized proteins to their destinations is
(a) Endoplasmic reticulum
(b) Lysosome
(c) Mitochondria
(d) Chloroplast

Answer

Answer: (a)

10. SER produces
(a) Nucleic acid
(b) Carbohydrate
(c) Protein
(d) Lipid

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 Mitochondria Multiple Choice Questions

MCQs on Mitochondria :

1. Cristae in mitochondria serves as sites for
(a) oxidation reduction reaction
(b) protein synthesis
(c) macromolecules breakdown
(d) flavoproteins are phosphorylated

Answer

Answer: (a)

2. Pick the incorrect statement
(a) mitochondrial DNA is known as mtDNA
(b) mitochondria is the powerhouse of the cell
(c) mitochondria is the site for calvin cycle
(d) mitochondria is the site for krebs cycle and oxidative phosphorylation

Answer

Answer: (c)

3. Inner membrane of mitochondria is rich in phospholipid _______
(a) phosphatidylserine
(b) phosphatidylinositol
(c) phosphatidylcholine
(d) cardiolipin

Answer

Answer: (d)

4. Mt DNA is
(a) simple single stranded circular DNA molecule
(b) simple double stranded circular DNA molecule
(c) simple double stranded linear DNA molecule
(d) simple single stranded linear DNA molecule

Answer

Answer: (b)

5. Inner mitochondrial membrane has
(a) cytochrome oxidase complex
(b) b-c 1 complex
(c) NADH dehydrogenase complex
(d) all of the above

Answer

Answer: (d)

6. This is not a function of mitochondria
(a) fatty acid breakdown
(b) non-shivering thermogenesis
(c) electron transport chain and associated ATP production
(d) glycolysis and associated ATP production

Answer

Answer: (d)

7. This statement is incorrect about mitochondrial membrane
(a) outer membrane is permeable to all molecule types
(b) outer membrane is resembles a sieve
(c) outer membrane embeds enzymes of electron transfer chain
(d) none of these

Answer

Answer: (c)

8. Oxysomes of F0-F1 particles take place on
(a) Chloroplast surface
(b) Thylakoid
(c) Inner mitochondrial membrane
(d) Mitochondrial surface

Answer

Answer: (c)

9. Pick the incorrect statement
(a) generally, chloroplasts are larger than mitochondria
(b) mitochondria and chloroplasts both have DNA
(c) mitochondria and chloroplasts both contain an outer and inner membrane
(d) mitochondria and chloroplasts both have an internal compartment, the thylakoid space bound by thylakoid membrane

Answer

Answer: (d)

10. Typically, the inner membrane of mitochondria is highly convoluted to form a series of infolding known as
(a) grana
(b) thylakoids
(c) cristae
(d) lamellae

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 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 Allosteric Enzyme Multiple Choice Questions

MCQs on Allosteric Enzyme :

1. The control and regulation of biological processes involve some enzymes. They are known as
(a) inhibitors
(b) regulators
(c) allosteric enzymes
(d) activators

Answer

Answer: (c)

2. What are the non-substrate molecules binding to the allosteric sites called?
(a) allosteric substrate
(b) reactants
(c) allosteric modulators
(d) inhibitors

Answer

Answer: (c)

3. Allosteric enzymes are
(a) smaller than simple enzymes
(b) larger than simple enzymes
(c) smaller than simple enzymes but not complex
(d) larger and more complex than simple enzyme

Answer

Answer: (d)

4. Allosteric enzymes consist of several
(a) polypeptide chains
(b) inhibitors
(c) temperature ranges
(d) active sites

Answer

Answer: (a)

5. Allosteric enzymes possess
(a) Three types of allosteric sites
(b) Active site and three types of allosteric sites
(c) Active site and two types of allosteric sites
(d) Active site and an allosteric site

Answer

Answer: (d)

6. Enzymes that are involved in the feedback inhibition are known as
(a) Apoenzymes
(b) Holoenzymes
(c) Allosteric enzymes
(d) Coenzymes

Answer

Answer: (c)

7. Blocking of enzyme action by blocking its active sites is
(a) feedback inhibition
(b) allosteric inhibition
(c) competitive inhibition
(d) non-competitive inhibition

Answer

Answer: (c)

8. The “Lock and key” theory of enzyme action was put forward by
(a) Koshland
(b) Fischer
(c) Kuhne
(d) Arrhenius

Answer

Answer: (b)

9. The fastest enzyme is
(a) carbonic anhydrase
(b) pepsin
(c) DNA polymerase
(d) DNA gyrase

Answer

Answer: (a)

10. The allosteric enzymes on the top of active sites contain
(a) substrate
(b) inhibitors
(c) polypeptide chains
(d) allosteric site

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 Ascomycetes Multiple Choice Questions

MCQs on Ascomycetes :

1. Which of the following is incorrect for ascomycetes
(a) they are unicellular as well as multicellular
(b) they are parasitic, saprophytic or coprophilous
(c) Neurospora, Claviceps and yeast belong to Ascomycota
(d) coenocytic mycelium

Answer

Answer: (d)

2. Dikaryophase and septate mycelium are characteristic features of which of the following class?
(a) Ascomycetes and Basidiomycetes
(b) Phycomycetes and Ascomycetes
(c) Deuteromycetes
(d) All of the above

Answer

Answer: (a)

3. Which of the fungi produces toxins in crop plants?
(a) Colleotrichum
(b) Aspergillus
(c) Penicillium
(d) both (b) and (c)

Answer

Answer: (d)

4. Which one of the following is incorrect
(a) Neurospora is widely used in genetic studies
(b) Yeast reproduces by budding
(c) Penicillium species are used in cheese production
(d) None of the above

Answer

Answer: (d)

5. Ergot is caused by
(a) Penicillium
(b) Rhizobium
(c) Claviceps
(d) Aspergillus

Answer

Answer: (c)

6. Which of the organism produces aflatoxin?
(a) fungi
(b) virus
(c) nematodes
(d) bacteria

Answer

Answer: (a)

7. Aspergillus has _______ hyphae
(a) aseptate and uninucleate
(b) aseptate and multinucleate
(c) septate and uninucleate
(d) septate and multinucleate

Answer

Answer: (d)

8. Dikaryon phase has
(a) diploid nucleus
(b) two similar nuclei
(c) two dissimilar haploid nuclei
(d) two haploid nuclei

Answer

Answer: (c)

9. Claviceps produces
(a) LSD
(b) marijuana
(c) ganja
(d) charas

Answer

Answer: (a)

10. Mycorrhiza shows
(a) endemism
(b) antagonism
(c) parasitism
(d) symbiosis

Answer

Answer: (d)