11. Cereals are a rich source of which of the following?
[A] Starch
[B] Maltose
[C] Glucose
[D] Fructose
Show Answer
Correct Answer: A [Starch]
Notes:
Cereals which are made with puffed or powdered rice and refined wheat typically contain starch. Starch is the most common form of carbohydrate and typically found in staple grains like rice, wheat, and corn.
12. Which among the following has segmented body?
[A] Phylum Mollusca
[B] Phylum Arthopoda
[C] Phylum Annelida
[D] Phylum Coelenterata
Show Answer
Correct Answer: C [Phylum Annelida]
Notes:
Annelids contain largely segmented bodies with each segment containing elements of the different body systems essential for life, such as the nervous system. Earthworms, ringed worms and leeches all fall into the annelida category.
13. Which among the following carries impure blood to human heart?
[A] Pulmonary vein
[B] Vena Cava
[C] Aorta
[D] Pulmonary arteries
Show Answer
Correct Answer: D [Pulmonary arteries]
Notes:
The pulmonary artery carries impure blood to the right and left lungs. The left half of the heart collects and pumps pure (oxygenated) blood from the lungs to all parts of the body.
14. In the names Mangifera indica (mango), Solanum tuberosum(potato) and Panthera leo(lion), what does the three names, indica, tuberosum and leo represent?
[A] Taxonomic Hierarchy
[B] Specific Epithet
[C] Binomial Nomenclature
[D] Identification
Show Answer
Correct Answer: B [Specific Epithet]
Notes:
A specific epithet is the second part of a species name in binomial nomenclature in any branch of biology. In botany, the second part of a botanical name. Specific epithet (zoology), also called the specific name, meaning the second part of the species name or binomen.
15. Significantly higher level of urea in the blood is the indication of which of the following damages? (UPSC Prelims 1991)
[A] Liver damage
[B] Kidney damage
[C] Heart attack
[D] Spleen damage
Show Answer
Correct Answer: B [Kidney damage]
Notes:
Generally, a high blood urea nitrogen level means your kidneys aren’t working well. But elevated blood urea nitrogen can also be due to: Urinary tract obstruction, congestive heart failure or recent heart attack.
16. Which of the following whales can be easily identified by the white calluses on their heads?
[A] Humpback Whale
[B] Antarctic Minke Whales
[C] North Atlantic Right Whale
[D] None of the above
Show Answer
Correct Answer: C [North Atlantic Right Whale]
Notes:
The North Atlantic right whale is a baleen whale. At present, they are among the most endangered whales in the world. They feed on plankton and are usually found in coastal waters.
17. Which of the following is required by viruses for growth?
[A] bacteria
[B] plants
[C] animals
[D] living cells
Show Answer
Correct Answer: D [living cells]
Notes:
Virus, infectious agent of small size and simple structure that can multiply only in living cells of animals, plants or bacteria.
18. In which of the following part of leaves does photosynthesis takes place?
[A] chloroplasts
[B] Stomata
[C] Mitocondria
[D] None of these
Show Answer
Correct Answer: A [chloroplasts]
Notes:
Photosynthesis occurs inside the chloroplasts that sit in the mesophyll of leaves.
19. Food is prepared in which part of the plant?
[A] Fruit
[B] Stem
[C] Leaves
[D] Root
Show Answer
Correct Answer: C [Leaves]
Notes:
Food in plants is prepared in leaves, all the essential components and raw materials like water, carbon dioxide, minerals reach to leaves. Leaves are also known as food factories in plants.
20. Which of the following are called food factories of the plant?
[A] Leaves
[B] Stem
[C] Roots
[D] Flowers
Show Answer
Correct Answer: A [Leaves]
Notes:
Leaves are called food factories of the plant because it makes food by the process of photosynthesis with the help of raw materials like water and carbon dioxide using sunlight and chlorophyll.
