1. In context with biology, which among the following is a Zoophyte?
[A] A plant that resembles an animal
[B] An animal that resembles a plant
[C] A plant that grows on an animal
[D] An animal that grows on a plant
Show Answer
Correct Answer: B [An animal that resembles a plant]
Notes:
A zoophyte is an animal that visually resembles a plant.
2. As compared to Photosynthesis, the Chemosynthesis involves CO2 fixation using energy derived from __:
[A] Oxidation of inorganic molecules
[B] Sunlight
[C] Ultraviolet radiation
[D] Infra Red radiation
Show Answer
Correct Answer: A [ Oxidation of inorganic molecules]
Notes:
Some organisms are able to convert inorganic material into organic compounds by a process called Chemosynthesis. This involves oxidation of inorganic molecules (e.g. hydrogen gas, hydrogen sulfide) or methane as a source of energy, rather than sunlight, as in photosynthesis.
3. In context with diabetes, many often we hear about Type1 and Type2 diabetes. What exactly are these?
[A] Body does not produce Insulin in Type1, does not respond properly in Type 2
[B] Body does not respond to Insulin properly in Type 1 , does not produce in Type 2
[C] Body produces too little Insulin in Type 1 , produces too much insulin in Type 2
[D] Body produces too much insulin in Type 1, produces too little insulin in Type 1
Show Answer
Correct Answer: A [Body does not produce Insulin in Type1, does not respond properly in Type 2]
Notes:
Diabetes mellitus occurs when the body does not produce insulin (type I) or when the body does not respond properly to insulin (type II). This results in elevated blood glucose. In either type, overtreatment, or failure to eat properly while on treatment, can lead to hypoglycemia. Most diabetics recognize their symptoms when “low” and know to go eat something before it progresses to a dangerous point. Symptoms of high blood sugar are much different – thirst, increased urination, sleepiness.
4. Which hormones does pancreas secret?
[A] Testosterone
[B] Progesterone
[C] Prolactin
[D] Glucagon and insulin
Show Answer
Correct Answer: D [Glucagon and insulin]
Notes:
The Islets of Langerhans are the endocrine cells of the pancreas that produce and secrete hormones such as insulin and glucagon into the bloodstream. The pancreatic hormones, insulin and glucagon, work together to maintain the proper level of sugar (glucose) in the blood.
5. Which of following is the primary photosynthetic pigment?
[A] Chlorophyll-b
[B] Carotenoid
[C] Chlorophyll-a
[D] Anthocyanin
Show Answer
Correct Answer: C [Chlorophyll-a]
Notes:
Chlorophylla-a is the primary pigment for photosynthesis in plants. Chlorophyll a is a specific form of chlorophyll used in oxygenic photosynthesis. It absorbs most energy from wavelengths of violet-blue and orange-red light.
6. Which of the following represent Dinosaurs?
[A] A reptile
[B] An amphibian
[C] A mammal
[D] A bird
Show Answer
Correct Answer: A [A reptile]
Notes:
Dinosaurs were warm-blooded reptiles. Mammal bone study sheds light on dinosaur physiology.
7. Which one of the following is cultivated by transplanting seedlings?
[A] Maize
[B] Sorghum
[C] Onion
[D] Soyabean
Show Answer
Correct Answer: C [Onion]
Notes:
Onions can be grown from seeds, seedlings and bulblets. Proper nursery management and transplanting are important operations in the onion crop. About 0.05 hectare nursery bed area is enough for getting seedlings to transplant in one hectare.
8. Which vitamin is also called as “Pantothenic acid”?
[A] Vitamin K
[B] Vitamin D
[C] Vitamin B3
[D] Vitamin B5
Show Answer
Correct Answer: D [Vitamin B5]
Notes:
Vitamin B5 is also called as Pantothenic acid and it was discovered by Roger J.Williams in 1933. Chemical formula for Vitamin B5 is C9H17NO5.
9. How many chromosomes are present in human beings?
[A] 44
[B] 46
[C] 48
[D] 42
Show Answer
Correct Answer: B [46]
Notes:
Human beings have 46 chromosomes in their cells. 22 pairs of autosomes and 2 special chromosomes called sex chromosomes are present.
10. How may cultivated species contribute to food production globally?
[A] 200
[B] 400
[C] 1000
[D] 900
Show Answer
Correct Answer: A [200]
Notes:
According to FAO’s report “The State of the World’s Biodiversity for Food and Agriculture”, of more than 6,000 plant species cultivated for food production, fewer than 200 contribute significantly to food production globally, regionally or nationally. Only 9 plant species account for almost two-thirds of total crop production.
