1. Amflora is a genetically modified ______?
[A] Rose
[B] Potato
[C] Lotus
[D] Tomato
Show Answer
Correct Answer: B [Potato]
Notes:
Amflora which is also known as EH92-527-1 is a genetically modified potato cultivar developed by BASF Plant Science. It is developed to produce a specific natural starch (amylopectin) needed for industrial applications.
2. Ripening of fruits is because of which among the following plant hormones?
[A] Auxin
[B] Ethylene
[C] Gibberellins
[D] Carins
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Correct Answer: B [Ethylene]
Notes:
Ripening is a process in fruits that causes them to become more palatable. Most fruits produce a gaseous compound called ethylene that starts the ripening process. Ethylene Gas Can be Used to Regulate Fruit Ripening.
3. Which among the following: Ferns, Mosses, Algae and Fungi, contain chlorophyll?
[A] Ferns and Algae
[B] Mosses and Algae
[C] Algae, Ferns and Mosses
[D] None of the given options
Show Answer
Correct Answer: C [Algae, Ferns and Mosses]
Notes:
Chlorophyll, the photosynthetic pigment that gives plants their green color, is present in Algae, Ferns and Mosses, thus enabling them to convert sunlight to chemical energy through photosynthesis. Although fungi are a group of organisms often thought to be plants, they lack chlorophyll, and hence, they are non-photosynthetic, surviving instead on organic matter.
4. Japanese encephalitis is a disease caused by __ ?
[A] Virus
[B] Protozoa
[C] Bacteria
[D] Fungi
Show Answer
Correct Answer: A [Virus]
Notes:
Japanese encephalitis is caused by virus from the family Flaviviridae. It’s a Mosquito Borne Disease
5. Which among the following is correct about Saliva of a Healthy Human?
[A] It is slightly acidic
[B] It is slightly saline
[C] It is slightly alkaline
[D] It is neutral
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Correct Answer: C [It is slightly alkaline]
Notes:
pH stands for potential hydrogen. It is used to describe the chemical acidity level vs. alkalinity level of a substance. The pH of Healthy human saliva is slightly alkaline and in the range of 6.2 to 7.6.
6. The term “Halitosis” denotes which among the following?
[A] Bad hearing
[B] bad breathe
[C] Baldness
[D] Excessive Sweating
Show Answer
Correct Answer: B [bad breathe]
Notes:
The term “Halitosis” denotes bad breath. It is the persistent, unpleasant odour in exhaled breath, usually not serious, commonly referred to as bad breath.
7. Great Zebra, Lesser Zebra and Spotted Zebra are species of:
[A] Butterfly
[B] Fish
[C] Monkey
[D] Dog
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Correct Answer: A [ Butterfly]
Notes:
The Great Zebra, Lesser Zebra and Spotted Zebra are the swallowtail butterfly found in the Southeast Asia, which are relatively common and not threatened species.
8. In which of the following kidney shaped guard cells are present?
[A] Dicot plants
[B] Monocot plants
[C] Grasses
[D] Algae
Show Answer
Correct Answer: A [Dicot plants]
Notes:
Kidney-shaped guard cells are found in dicotyledons. A dicotyledon is a flowering plant with an embroy that bears two cotyledons (seed leaves).
9. Which among the following is also called as ‘power house of the cell’?
[A] Cell wall
[B] Mitochondria
[C] Golgi bodies
[D] Plastids
Show Answer
Correct Answer: B [Mitochondria]
Notes:
Mitochondria is known as the Powerhouse of the Cell as it plays host to one of the most important processes in your body: cellular respiration. Taking in glucose and oxygen, mitochondria produce energy, which they capture and package as energy-rich molecules of ATP.
10. Which of the following is the later (Second) formed primary xylem elements?
[A] Xylem fibres
[B] Metaxylem
[C] Xylem parenchyma
[D] Protoxylem
Show Answer
Correct Answer: B [Metaxylem]
Notes:
Metaxylem is the part of the primary xylem that differentiates after the protoxylem and that is distinguished typically by broader tracheids and vessels with pitted or reticulate walls.