In light reaction, plastoquinone facilitates the transfer of electrons from:
| 1. | Cytb6f complex to PS I | 2. | PS I to NADP+ |
| 3. | PS I to ATP synthase | 4. | PS II to Cytb6f complex |
Subtopic: Light Reactions :1 | Light Reactions |
67%
Level 2: 60%+
NEET - 2020
Hints
What is the role of NAD+ in cellular respiration?
| 1. | It functions as an enzyme |
| 2. | It functions as an electron carrier |
| 3. | It is a nucleotide source for ATP synthesis |
| 4. | It is the final electron acceptor for anaerobic respiration |
Subtopic: Aerobic Respiration |
57%
Level 3: 35%-60%
NEET - 2018
Hints
In some plants, the female gamete develops into an embryo without fertilization. This phenomenon is known as:
| 1. | Parthenogenesis | 2. | Autogamy |
| 3. | Parthenocarpy | 4. | Syngamy |
Subtopic: Seed |
59%
Level 3: 35%-60%
NEET - 2019
Hints
Links
What map unit (Centimorgan) is adopted in the construction of genetic maps?
| 1. | A unit of distance between genes on chromosomes, representing 50% cross-over. |
| 2. | A unit of distance between two expressed genes, representing 10% cross-over. |
| 3. | A unit of distance between two expressed genes, representing 100% cross-over. |
| 4. | A unit of distance between genes on chromosomes. representing 1% cross-over. |
Subtopic: Recombination & Gene Mapping |
59%
Level 3: 35%-60%
NEET - 2019
Hints
An important characteristic that Hemichordates share with Chordates is:
| 1. | Ventral tubular nerve cord |
| 2. | Pharynx with gill slits |
| 3. | Pharynx without gill slits |
| 4. | Absence of notochord |
Subtopic: Phylum Hemichordata | Phylum Chordata |
63%
Level 2: 60%+
NEET - 2017
Hints
If the head of the cockroach is removed, it may live for a few days because:
| 1. | The cockroach does not have a nervous system |
| 2. | The head holds a small proportion of the nervous system while the rest is situated along the ventral part of its body |
| 3. | The head holds 1/3rd of the nervous system while the rest is situated along the dorsal part of its body |
| 4. | The supra-oesophageal ganglia of the cockroach are situated in ventral part of abdomen |
Subtopic: Cockroach: Nervous System |
69%
Level 2: 60%+
NEET - 2020
Hints
Lungs do not collapse between breaths and some air always remains in the lungs which can never be expelled because?
| 1. | there is a negative pressure in the lungs |
| 2. | there is a negative intrapleural pressure pulling at the lung walls |
| 3. | there is a positive intrapleural pressure |
| 4. | pressure in the lungs is higher than the atmospheric pressure |
Subtopic: Respiratory System: Trachea & Basic Anatomy of Lung |
55%
Level 3: 35%-60%
NEET - 2016
Hints
The increase in osmolarity from outer to inner medullary interstitium is maintained due to:
| (i) | Close proximity between Henle's loop and vasa recta |
| (ii) | Counter current mechanism |
| (iii) | Selective secretion of HCO3¯ and hydrogen ions in PCT |
| (iv) | Higher blood pressure in glomerular capillaries |
| 1. | Only (ii) | 2. | (iii) and (iv) |
| 3. | (i), (ii) and (iii) | 4. | (i) and (ii) |
Subtopic: Concentration of Urine: I |
63%
Level 2: 60%+
NEET - 2020
Hints
The contraceptive 'SAHELI':
| 1. | blocks estrogen receptors in the uterus, preventing implantation. |
| 2. | increases the concentration of estrogen and prevents ovulation in females. |
| 3. | is an lUD. |
| 4. | is a post-coital contraceptive. |
Subtopic: Hormonal Contraceptives, Emergency Contraception & Terminal Methods |
56%
Level 3: 35%-60%
NEET - 2018
Hints
Which of the following is the correct sequence of events in the origin of life?
| I: | Formation of protobionts. |
| II: | Synthesis of organic monomers. |
| III: | Synthesis of organic polymers. |
| IV: | Formation of DNA-based genetic systems. |
| 1. | I, II, III, IV | 2. | I, III, II, IV |
| 3. | II, III, I, IV | 4. | II, III, IV, I |
Subtopic: Origin of Life: Chemical Evolution: 1 | Origin of Life |
Level 3: 35%-60%
NEET - 2016
Hints
© 2026 GoodEd Technologies Pvt. Ltd.