Biology · NDA previous year questions

300 questions asked across 18 exam years, newest first

Year-wise papers Topic-wise questions

Practise this topic

2022 18 questions

Q572022 · 4 Sept 2022
An electric bulb is connected to 220 V generator. The current drawn is 600 mA. What is the power of the bulb?
1. A.132 W
2. B.13.2 W
3. C.1320 W
4. D.13200 W
Show answer
Answer: A
Q642022 · 4 Sept 2022
The transfer of electrical signals by nerve cells in human body is enabled by
1. A.sodium
2. B.potassium
3. C.iron
4. D.sodium and potassium
Show answer
Answer: D
Q672022 · 4 Sept 2022
Which one of the following hormones increases the heartbeat in mammals?
1. A.Insulin
2. B.Melatonin
3. C.Thyroxine
4. D.Adrenaline
Show answer
Answer: D
Q692022 · 4 Sept 2022
Which one of the following statements about animal cells and plant cells is correct?
1. A.Animal cells have only cell membrane not cell wall, whereas plant cells have only cell wall not cell membrane.
2. B.Animal cells have only cell membrane not cell wall, but plant cells have both.
3. C.Both animal and plant cells have cell membrane and cell wall.
4. D.Only some cells of animals have cell wall and all plant cells have cell membrane.
Show answer
Answer: B
Q702022 · 4 Sept 2022
Lymph is a tissue fluid present in intercellular spaces. It resembles to
1. A.digestive juice
2. B.cytoplasmic fluid
3. C.urine
4. D.plasma
Show answer
Answer: D
Q752022 · 4 Sept 2022
A DC generator works on the principle of
1. A.Ohm’s law
2. B.Joule’s law of heating
3. C.Faraday’s laws of electromagnetic induction
4. D.None of the above
Show answer
Answer: C
Q862022 · 4 Sept 2022
The protein-digesting enzyme secreted by the stomach wall in case of mammals is called
1. A.chitinase
2. B.amylase
3. C.pepsin
4. D.trypsin
Show answer
Answer: C
Q872022 · 4 Sept 2022
Which one of the following will be resulted when an animal cell is surrounded by a medium with lower concentration of water?
1. A.Cell will lose water
2. B.No change in movement of water
3. C.Cell will gain water
4. D.Cell will swell up
Show answer
Answer: A
Q882022 · 4 Sept 2022
The digestive enzymes are present in
1. A.mitochondria
2. B.vacuoles
3. C.lysosomes
4. D.ribosomes
Show answer
Answer: C
Q952022 · 4 Sept 2022
In which one of the following devices, the light energy is converted into the electrical energy?
1. A.Light-emitting diode
2. B.Laser diode
3. C.Solar cell
4. D.Transistor
Show answer
Answer: C
Q542022 · 10 Apr 2022
Which one of the following plant plastids stores starch, oil and protein granules?
1. A.Chloroplast
2. B.Leucoplast
3. C.Chromoplast
4. D.Xanthoplast
Show answer
Answer: B
Q552022 · 10 Apr 2022
Which one of the following statements about vacuoles' is not correct?
1. A.In plants, there is a large central vacuole that may occupy 90% of total cell volume.
2. B.In plant cells, vacuoles provide turgidity and rigidity.
3. C.In Amoeba, vacuoles have role in nutrition.
4. D.Vacuoles are absent in animal cells.
Show answer
Answer: D
Q562022 · 10 Apr 2022
In aquatic plants, large air sacs give them buoyancy effects. These sacs are surrounded by which one of the following types of tissues?
1. A.Parenchyma
2. B.Collenchyma
3. C.Sclerenchyma
4. D.Complex tissue
Show answer
Answer: A
Q582022 · 10 Apr 2022
Which one of the following groups is called 'amphibians of plant kingdom'?
1. A.Bryophytes
2. B.Thallophytes
3. C.Pteridophytes
4. D.Gymnosperms
Show answer
Answer: A
Q592022 · 10 Apr 2022
Which one of the following is caused by a bacterial pathogen?
1. A.AIDS
2. B.Dengue fever
3. C.COVID-19
4. D.Typhoid fever
Show answer
Answer: D
Q722022 · 10 Apr 2022
Which one of the following statements is not correct?
1. A.Most carbon compounds are good conductors of electricity.
2. B.Bonding in organic compounds is covalent.
3. C.Graphite is used as a lubricant.
4. D.Diamond is an allotrope of carbon.
Show answer
Answer: A
Q952022 · 10 Apr 2022
Which one of the following plants has unisexual flowers?
1. A.Papaya
2. B.Hibiscus
3. C.Mustard
4. D.Sunflower
Show answer
Answer: A
Q962022 · 10 Apr 2022
A cell is unable to synthesize lipids. Which of its cell organelles might be defective?
1. A.Smooth endoplasmic reticulum
2. B.Golgi bodies
3. C.Lysosomes
4. D.Mitochondria
Show answer
Answer: A