Biology Practice Question and Answer
8 Q: Which of the following is a root ?
322 0626696b0e1e2a840c333c6c4
626696b0e1e2a840c333c6c4- 1Potatofalse
- 2Onionfalse
- 3Carrottrue
- 4gingerfalse
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Answer : 3. "Carrot "
Explanation :
Yams, beets, parsnips, turnips, rutabagas, carrots, yuca, kohlrabi, onions, garlic, celery root (or celeriac), horseradish, daikon, turmeric, jicama, Jerusalem artichokes, radishes, and ginger are all considered roots. Because root vegetables grow underground, they absorb a great amount of nutrients from the soil.
Q: The upper part of the respiratory tract is provided with small hair-like structures called ______.
193 06438fb531ce944a93ea183c3
6438fb531ce944a93ea183c3- 1bronchifalse
- 2ciliatrue
- 3villifalse
- 4alveolifalse
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Answer : 2. "cilia"
Explanation :
Hairlike structures called cilia line the mucous membrane and move the particles trapped in the mucus out of the nose. Inhaled air is moistened, warmed, and cleansed by the tissue that lines the nasal cavity.
Q: The size of the pupil of the eye is controlled by the ______.
198 064c396e0a4dbfb486bcf64f8
64c396e0a4dbfb486bcf64f8- 1blind spotfalse
- 2retinafalse
- 3corneafalse
- 4iristrue
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Answer : 4. "iris"
Explanation :
1. The iris controls the amount of light entering the eye.
2. Iris is the colored part of the eye, which provides pigment to the eyes.
3. It is attached to the ciliary muscle, which contracts and expands to accommodate the required amount of light.
Q: Deficiency of which of the following vitamins causes excessive bleeding from wounds?
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64c3953ea4dbfb486bcf6178- 1Vitamin Dfalse
- 2Vitamin Efalse
- 3Vitamin Afalse
- 4Vitamin Ktrue
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Answer : 4. "Vitamin K"
Explanation :
1. Vitamin K deficiency causes excessive bleeding from wounds.
2. If there is deficiency of Vitamin K in your body then you can easily get injury marks on your body or skin.
Q: Which of the following options is correct regarding sexually transmitted disease (STD)?
Statement A: Sexually transmitted diseases (STD) are infections transmitted from an infected person to an uninfected person through sexual contact.
Statement B: HIV, HPV and Hepatitis B virus is responsible for STD.
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64c38fdb9e9013486a7a0b78Statement B: HIV, HPV and Hepatitis B virus is responsible for STD.
- 1Both Statements A and B incorrectfalse
- 2Only Statement B is correctfalse
- 3Both Statements A and B correcttrue
- 4Only Statement A is correctfalse
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Answer : 3. "Both Statements A and B correct"
Explanation :
This is a correct statement regarding sexually transmitted diseases (STD).
Statement A: Sexually transmitted diseases (STD) are infections transmitted from an infected person to an uninfected person through sexual contact.
Statement B: HIV, HPV and Hepatitis B virus is responsible for STD.
Q: Sponges belong to phylum ______ of the animal kingdom.
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64c2509e9e9013486a756bb1- 1Echinodermatafalse
- 2Poriferatrue
- 3Aschelminthesfalse
- 4Molluscafalse
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Answer : 2. "Porifera"
Explanation :
1. Sponge belongs to Porifera phylum of the animal kingdom.
2. These are primitive multicellular animals. The study of sponges is known as para zoology.
3. Sponges are mostly irregular in shape and have radial symmetry.
4. The body of a sponge has two layers-
- Epidermis: This is the outer layer that helps move water in and out.
- Mesohyl: This is the middle layer which contains the cells of the sponge.
Q: Which of the following statements about bryophytes is not true?
140 064c22dd629beb3482a35656e
64c22dd629beb3482a35656e- 1They are called amphibians of the plant kingdom.false
- 2The presence of a special tissue is found in these for the flow offalse
- 3water and other substances from one part of the plant body to another. Their body is generally differentiated by taking the form of stem and leaf-like structures.true
- 4Moss (Funaria) and Marchantia are examples of bryophytes.false
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Answer : 3. "water and other substances from one part of the plant body to another. Their body is generally differentiated by taking the form of stem and leaf-like structures. "
Explanation :
All the given statements about bryophytes are true.
1. They are called amphibians of the plant kingdom.
2. The presence of a special tissue is found in these for the flow of
3. Moss (Funaria) and Marchantia are examples of bryophytes.
Q: Starch and sugar in our food are forms of _____.
116 064c22ce196ae1f4842ff082d
64c22ce196ae1f4842ff082d- 1Proteinsfalse
- 2fatsfalse
- 3vitaminsfalse
- 4carbohydratestrue
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Answer : 4. "carbohydrates"
Explanation :
1. Starch and sugar found in our food are forms of carbohydrates. Carbohydrates are an important part of our diet. They provide energy to the body and are essential for other body functions.
2. Starch is a complex carbohydrate found in plants. It is found in wheat, rice, potatoes, and other grains. Starch is used to thicken food, make sugar, and make other foods.