300+ REAL TIME NEET Biology Objective Questions & Answers 2023

300+ TOP MCQs on Peroxisomes and Answers

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 Peroxisomes Multiple Choice Questions

MCQs on Peroxisomes :

1. These activities are characteristics of peroxisomes
I. Catalase activity
II. Possess a glyoxylate cycle
III. Degradation of very long chain fatty acids
IV. Produce dihydrogen
(a) I and II
(b) I and III
(c) III and IV
(d) II and IV

Answer

Answer: (b)

2. Pick the odd one out in context of their surrounding membrane systems
(a) Mitochondria
(b) Chloroplasts
(c) Endoplasmic reticulum
(d) Nucleus

Answer

Answer: (c)

3. Pick the odd one out
(a) Glycosomes
(b) Mitochondria
(c) Hydrogenosomes
(d) Mitosomes

Answer

Answer: (a)

4. This organelle is involved in lipid metabolism
(a) RER
(b) SER
(c) Golgi apparatus
(d) Peroxisomes

Answer

Answer: (b)

5. The organelle helping in penetrating of sperm into egg during fertilization is
(a) peroxisome
(b) nucleus
(c) lysosome
(d) mitochondrion

Answer

Answer: (c)

6. Inside the cell, H₂O₂ clearance is brought about by
(a) Peroxisome with enzyme amino oxidase
(b) Glyoxysome with enzyme catalase
(c) Peroxisome with enzyme catalase
(d) Glyoxysome with enzyme isocitrate lyase

Answer

Answer: (c)

7. Organelle – Glyoxysomes is involved in
(a) conversion of fatty acids to lipids
(b) conversion of amino acids to carbohydrates
(c) conversion of fatty acids to carbohydrates
(d) conversion of amino acids to proteins

Answer

Answer: (c)

8. This forms the crystalline core inside peroxisome
(a) condensed ammonium chloride
(b) salt crystals
(c) highly condensed oxidative enzymes
(d) collection of phospholipids

Answer

Answer: (c)

9. The name of the group of proteins in the peroxisomal membrane is
(a) Peroxins
(b) Transporters
(c) Translocation proteins
(d) Peroxisomal membrane proteins

Answer

Answer: (a)

10. This enzyme embedded in the peroxisomal membrane is responsible to activate fatty acids before undergoing beta-oxidation.
(a) Fatty acid dehydrogenase
(b) 3-ketothiolase
(c) Acyl- CoA oxidase
(d) Acyl – CoA synthase

Answer

Answer: (d)

300+ TOP MCQs on Arthritis and Cancer and Answers

MCQs on Arthritis and Cancer :

1. This is cancerous state of blood
(a) Uremia
(b) Chloremia
(c) Leukemia
(d) Proteinemia

Answer

Answer: (c)

2. Benign tumour is the one which
(a) differentiated and capsulated
(b) shows metastasis
(c) differentiated and non capsulated
(d) undifferentiated and non capsulated

Answer

Answer: (a)

3. If a muscle fails to give stimulation action and there is much ingestion of lactic acid, the conduction is termed as
(a) Fatigue
(b) Tonus
(c) Paralysis
(d) Tetanus

Answer

Answer: (a)

4. A patient is suspicious of having breast cancer. What type of test will a physician conduct to diagnose the cancer
(a) blood test
(b) mammography
(c) CT scan
(d) pap test

Answer

Answer: (b)

5. Rheumatoid arthritis is different from some other forms of arthritis as it
(a) occurs below the waist
(b) is more painful than other forms
(c) generally occurs above the waist
(d) is symmetrical, affecting the right and the left sides of the body

Answer

Answer: (d)

6. Chemicals, that can induce cancer are called
(a) Carcinogens and produce malignant tumour
(b) carcinogens and produce non-malignant tumour
(c) mutagenic agents and do not produce malignant tumour
(d) mutagenic agents and produce benign tumour

Answer

Answer: (a)

7. A painful disorder of the joints, Gouts is due to
(a) inflammation of synovial membrane
(b) deposition of uric acid at joints
(c) injury to tendon
(d) damage caused to ligaments

Answer

Answer: (b)

8. Cancerous cells are more easily damaged by radiation than normal cells as they
(a) differ in structure
(b) undergo rapid division
(c) are nutrition-starved
(d) none of these

Answer

Answer: (b)

9. Cancer is related to
(a) Non-malignant tumor
(b) uncontrolled growth of tissues
(c) controlled division of tissues
(d) none of the above

Answer

Answer: (b)

10. The nucleus of cancerous cells becomes
(a) Unchanged
(b) Degenerated
(c) Abnormally large
(d) Hypertrophied

Answer

Answer: (c)

300+ TOP MCQs on Male Reproductive System and Answers

MCQs on Male Reproductive System :

1. The elastic tissue which connects the cauda epididymis to the scrotal sac is
(a) Caput epididymis
(b) Scrotal ligament
(c) Gubernaculum
(d) Tendinous cord

Answer

Answer: (c)

2. By the contraction of the spermatic cord, the testis of man are not taken to the abdominal cavity due to this structure
(a) fat bodies and gubernaculum present over the testis
(b) attachment of testis by gubernaculum to the scrotal sac only
(c) narrowness of inguinal canal
(d) both (b) and (c)

Answer

Answer: (b)

3. The seminiferous tubules of the testis are lined by the germinal epithelium consisting of
(a) spermatids
(b) cells of Sertoli
(c) spermatogonium
(d) spermatocytes

Answer

Answer: (b)

4. These cells of the testes secrete testosterone
(a) Sertoli cells
(b) cells of germinal epithelium
(c) Cells of Leydig or interstitial cells
(d) secondary spermatocytes

Answer

Answer: (c)

5. There is a connective tissue cord extending between the testis and abdominal wall known as
(a) mesenteric cord
(b) gubernaculum
(c) testis cord
(d) spermatic cord

Answer

Answer: (d)

6. Which of these is an accessory reproductive gland in male mammals
(a) Inguinal gland
(b) Prostate gland
(c) Mushroom-shaped gland
(d) Gastric gland

Answer

Answer: (b)

7. There are some special types of cells present in the seminiferous tubules known as Sertoli cells which are
(a) somatic cells
(b) germinal cells
(c) protective cells
(d) reproductive cells

Answer

Answer: (c)

8. Seminiferous tubules develop central lumen after
(a) Old age
(b) Prepuberal time
(c) Birth
(d) Puberty

Answer

Answer: (d)

9. Another name for Bulbourethral gland is
(a) Meibomian gland
(b) Prostate gland
(c) Perineal gland
(d) Cowper’s gland

Answer

Answer: (d)

10. In man, Cryptorchidism is the condition when
(a) testes do not descent into the scrotum
(b) there are two testes in each scrotum
(c) testis degenerates in the scrotum
(d) testis enlarges in the scrotum

Answer

Answer: (a)

300+ TOP MCQs on Phylum Aschelminthes and Answers

MCQs on Phylum Aschelminthes :

1. Ascaris has ______________ cells in the excretory system
(a) Green gland
(b) flame cells
(c) nephron
(d) Renette cells

Answer

Answer: (d)

2. Syncytial epidermis is found in
(a) Ascaris
(b) Metaphire
(c) House fly
(d) Periplaneta

Answer

Answer: (a)

3. ___________ is known as a coelom derived from blastocoel
(a) Enterocoel
(b) Haemocoel
(c) Pseudocoel
(d) Schizocoel

Answer

Answer: (c)

4. This is the basis on which female Ascaris can be identified
(a) two spicules found at the posterior end
(b) presence of postanal and preanal papillae
(c) straight posterior end
(d) common cloacal aperture

Answer

Answer: (c)

5. In Ascaris, the period of incubation outside the human body is
(a) more than 30 days
(b) 15-30 days
(c) 8-14 days
(d) 4-8 days

Answer

Answer: (b)

6. In the life cycle of Ascaris, the infective stage is
(a) third lava
(b) second larva
(c) cyst
(d) fertilized egg

Answer

Answer: (b)

7. The body cavity of Ascaris is pseudocoel as
(a) it is filled with pseudocoelomic fluid
(b) has very little parenchyma
(c) contains large cells termed pseudocoelocytes
(d) bound extremely by muscle layer and internally by intestines

Answer

Answer: (d)

8. Ascaris lumbricoides is found living in the intestine of
(a) Pig
(b) Homo sapiens
(c) Monkey
(d) Goat and sheep

Answer

Answer: (b)

9. Process of morphologicaly differentiating male and female sexes is known as
(a) sexual dimorphism
(b) polymorphism
(c) variation
(d) none of the above

Answer

Answer: (a)

10. This has no alternate host
(a) Plasmodium vivax
(b) Tape worm
(c) Fasiola hepatica
(d) Ascaris lumbricoides

Answer

Answer: (d)

300+ TOP MCQs on Class Pisces and Answers

MCQs on Class Pisces :

1. A common trait between tadpole and fish is
(a) scales
(b) lateral line
(c) fins
(d) legs

Answer

Answer: (b)

2. This has a cartilaginous endoskeleton
(a) Bony fishes
(b) Mollusca
(c) Dipnoi
(d) Elasmobranch

Answer

Answer: (d)

3. True fishes have fins and gills. This is not a true fish
(a) Hippocampus – SeaHorse
(b) Hythalamictyes – Silver carp
(c) Carassius – Goldfish
(d) Lepisma – Silverfish

Answer

Answer: (d)

4. This fish shows dorsal fin modified into suckers
(a) Neoceratodus
(b) Hippocampus
(c) Echeneis
(d) Torpedo

Answer

Answer: (c)

5. This is a living fossil
(a) Neoceratodus
(b) Latimeria
(c) Lepidosteus
(d) Lepidosiren

Answer

Answer: (b)

6. This is a migratory fish
(a) Ribbon fish
(b) Carp
(c) Salmon
(d) Shark

Answer

Answer: (c)

7. In fishes, air bladder does not facilitate
(a) movement
(b) respiration
(c) excretion
(d) none of these

Answer

Answer: (d)

8. Type of association between shark and suckerfish is
(a) Predation
(b) Parasitism
(c) Commensalism
(d) Symbiosis

Answer

Answer: (c)

9. Placoid scales are found in
(a) paleontological fishes
(b) lung fishes
(c) bony fishes
(d) cartilaginous fishes

Answer

Answer: (d)

10. This is a characteristic feature of fishes
(a) gills and epidermal scales
(b) tail and epidermal scales
(c) gills and venous heart
(d) venous heart and tail

Answer

Answer: (c)

300+ TOP MCQs on Ketogenesis and Answers

MCQs on Ketogenesis :

1. Brain derives energy from ketogenesis, if glucose is
(a) less
(b) high
(c) constant
(d) zero

Answer

Answer: (a)

2. Which of the following amino acids are exclusively ketogenic?
(a) Asparagine
(b) Threonine
(c) Proline
(d) Leucine

Answer

Answer: (d)

3. Activated fatty acid is transported to mitochondria from cytosol by
(a) Creatinine
(b) Carnitine
(c) Creatine
(d) Clathrin

Answer

Answer: (b)

4. Ketone bodies are formed from
(a) Acetone
(b) Acetyl CoA
(c) Acetoacetate
(d) HCl

Answer

Answer: (b)

5. When the rate of synthesis of ketone bodies is more than its utilization, it leads to
(a) colour blindness
(b) diabetes
(c) anaemia
(d) ketonemia

Answer

Answer: (d)

6. Urine of a person contains abnormal quantities of ________ during prolonged fasting
(a) amino acids
(b) ketones
(c) glucose
(d) fats

Answer

Answer: (b)

7. Ketogenesis occurs primarily in ______ of liver cells
(a) Mitochondria
(b) Cytosol
(c) Endoplasmic reticulum
(d) Golgi apparatus

Answer

Answer: (a)

8. Organs that can utilise energy formed in ketogenesis are
(a) Brain
(b) Skeletal muscle
(c) Heart
(d) All of the above

Answer

Answer: (d)

9. Which of the following are ketone bodies
(a) acetoacetate
(b) acetone
(c) ꞵ-hydroxy butyrate
(d) all of the above

Answer

Answer: (d)

10. Which of the following produce acetyl CoA directly
(a) Lysine
(b) Phenylalanine
(c) Isoleucine
(d) Alanine

Answer

Answer: (c)