Daily Biology Questions

Daily Biology Questions is an official page of Feel the Biology where important Multiple Choice Question (MCQ) are updated on the daily basis. The questions are very important for various competitive exam like NEET, JENPAS, UPSC etc. You may also practice live Biology MCQ practice session for NEET 2023. To practice click here.

Daily Biology Questions for NEET 2023

Q. ID – 31052021

Select the mismatch about Cranial Capacity :

  1. Homo habilis : 700 cc
  2. Homo erectus : 900 cc
  3. Neanderthal : 1100 cc
  4. Homo sapiens : 1350 cc

Answer : 3rd Option

Explanation :
→ The Cranial (brain) capacity of Homo habilis were between 650 – 800 cc. Homo erectus had a brain around 900 cc. Neanderthal man had a brain size 1400 cc. The cranial capacity of Homo sapiens is less than Neanderthal, that is about 1350 cc.

Q. ID – 27052021

Select the correct statement :

  1. Angiosperms lack vessels in their xylem
  2. In grasses, the guard cells are bean shaped
  3. Gymnosperms have sieve cells
  4. Xylem fibres is known as bast fibres

Answer : 3rd Option

Explanation :
→ Gymnosperms lack vessels in their xylem. The presence of vessels is a characteristic feature of angiosperm.
→ In grasses (monocot plants) the guard cells of the stomata are dumb-bell shaped. Bean shaped guard cells are found in the stomata of dicot plants.
→ Gymnosperms have Albuminous cells and Sieve cells instead of Companion cells and Sieve tube.
→ Bast fibres are the Phloem fibres not the Xylem fibres.

☆ NCERT 11, Page 87 & 88

Q. ID – 26052021

Which of the following is a function of aeration tanks in Sewage Treatment :

  1. remove floating debris
  2. form primary sludge
  3. reduce BOD of effluent by flocs
  4. sediment flocs to form activated sludge

Answer : 3rd Option

Explanation :
→ Floating debris are removed by filtration in the Primary treatment.
→ The settle solids form primary sludge by sedimentation in the Primary treatment.
→ The primary effluent pass into aeration tank of Biological treatment where the BOD reduces significantly by the flocs.
→ The flocs are allowed to sediment into settling tank to form activated sludge.

☆ NCERT 12, Page 184

Q. ID – 25052021

Vital Capasity (VC) includes:

  1. RV + ERV
  2. ERV + TV + IRV
  3. RV + ERV + TV
  4. RV + TV

Answer : 2nd Option

Explanation :
→ Vital Capasity means the maximum volume of air a person can breathe out after a forced inspiration. This includes Expiratory Reserve Volume (ERV), Tidal Volume (TV) and Inspiratory Reserve Volume (IRV).

☆ NCERT 11, Page 272

Q. ID – 24052021

Decomposition rate is slower if :

  1. detritus is rich in nitrogen
  2. the environment is warm & moist
  3. the environment is anaerobic
  4. detritus is rich in suger

Answer : 3rd Option

Explanation :
→ Decomposition is an oxygen requiring process. The environment is anaerobic means lack of oxygen which slow down the decomposition.
→ The rate of decomposition is quicker if the detritus is rich in nitrogen and water soluble substance like sugar. Warm and moist environment favour decomposition.

☆ NCERT 12, Page 244

Q. ID – 22052021

Choose the incorrect one :

  1. Tallest Angiosperm → Sequoia
  2. Coralloid roots → Cycas
  3. Branched stems → Pinus
  4. Living fossil → Ginko

Answer : 1st Option

Explanation :
→ The giant redwood tree, Sequoia is one of the tallest tree species of Gymnosperm, not the Angiosperm.

☆ NCERT 11, Page 38

Q. ID – 20052021

Ligaments are the example of :

  1. Muscular tissue
  2. Dense irregular connective tissue
  3. Loose connective tissue
  4. Dense regular connective tissue

Answer : 4th Option

Explanation :
→ Ligaments are the example of Dense regular connective tissue which attach one bone to another bone. Collagen fibres are present in rows between many parallel bundles of fibres in this type of connective tissues.

☆ NCERT 11, Page 103, Last para

Q. ID – 17052021

Chemiosmosis not requires :

  1. Inner mitochondrial membrane
  2. Proton pump
  3. Proton gradient
  4. ATP synthase

Answer : 1st Option

Explanation :
→ Chemiosmosis is a ATP synthesis process occoured in the thylakoid of Plastid.
ATP synthesis in the thylakoid of a plastid during photosynthesis require basically four things. They are the Thylakoid membrane, Proton pump, Proton gradient and ATP synthase.

☆ NCERT 11, Page 215

Q. ID – 03042021

Which of the following is not produced from the pars distalis of the Pituitary gland?

  1. Prolactin
  2. Luteinizing hormone
  3. Melanocyte stimulating hormone
  4. Growth hormone

Answer : 3rd Option

Explanation :
The pars distalis region of pituitary, commonly called anterior pituitary, produces growth hormone (GH), prolactin (PRL), thyroid stimulating hormone (TSH), adrenocorticotrophic hormone (ACTH), luteinizing hormone (LH) and follicle stimulating hormone (FSH). Pars intermedia secretes only one hormone called melanocyte stimulating hormone (MSH).

☆ NCERT 11, Page 333

Q. ID – 02042021

Which of the following is not a Mendelian Disorder ?

  1. Cystic fibrosis
  2. Myotonic dystrophy
  3. Klinefelter’s Syndrome
  4. Sickle-cell anaemia

Answer : 3rd Option

Explanation :
→ Klinefelter’s Syndrome is a chromosomal disorder, not follow the mendel’s laws of inheritance that determined by alteration or mutation in the single gene. So, It is not an example of Mendelian Disorder.

☆ NCERT 12, Page 89

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