Biology - Online Test
Q1. Match the following:
respiratory volume
a) RV
b) ERV
c) TV
d)IRV
value (in ml)
i) 1000 - 1100
ii) 6000 - 8000
iii) 2500 - 3000
iv) 1100 - 1200
respiratory volume
a) RV
b) ERV
c) TV
d)IRV
value (in ml)
i) 1000 - 1100
ii) 6000 - 8000
iii) 2500 - 3000
iv) 1100 - 1200
Answer : Option D
Explaination / Solution:
TV isapprox. 500 mL., i.e., a healthy man caninspire or expire approximately 6000 to 8000mL of air per minute. IRV averages 2500mL to 3000 mL.ERV averages 1000mL to 1100 mL. RV averages 1100 mL to 1200 mL.
Q2. Main objective of production or use of herbicide resistant genetically modified crops is to
Answer : Option A
Explaination / Solution:
Herbicides are chemicals that kill the herbs that grow with crop plants. Use of herbicides results into accumulation of herbicide in food and water. To overcome this problem herbicide resistant genetically modified crops are used.
Q3. In a wetland the primary factor controlling the environment and the associated plant and animal life will be
Answer : Option A
Explaination / Solution:
The area that is saturated with water is called wetland. In wetland the primary factor controlling the environment and the associated plant and animal life will be water.
Q4. Pick the animals with true placenta
Answer : Option C
Explaination / Solution:
True placenta is present in Mongoose. Placenta help in transfer of nutrients and respiratory gases from mother to growing foetus.
Q5. Flower is a modified shoot because
Answer : Option D
Explaination / Solution:
Flower is a modified shoot because it develops in the axils of bracts like axillary shoots. New buds also develop at node inside the axils of bracts of leaves.
Q6. The part of fallopian tube closest to ovary is
Answer : Option B
Explaination / Solution:
Fallopian tube or oviduct of human female is divided into three parts, Infundibulum, ampulla and isthmus. The infundibulum is closet to ovary.
Q7. The enzymes show high activity at
Answer : Option B
Explaination / Solution:
Each enzyme shows its highest activity at a particular temperature and pH called the optimum temperature and optimum pH.
Q8. Manoj has AB blood group, so he will have the following antibodies in his blood plasma :
Answer : Option D
Explaination / Solution:
AB blood group does not have any antibodies in plasma. That's why AB blood group is universal recipient.
Q9. Each gametes carry
Answer : Option A
Explaination / Solution:
Each gametes carry single set of chromosomes. During gamete formation each pair of alleles separate from each other as reduction division occurs.
Q10. What is the final product of Glycolysis?
Answer : Option B
Explaination / Solution:
Glycolysis involves the breaking down of a sugar (generally glucose, although fructose and other sugars may be used) into more manageable compounds in order to produce energy. The net end products of glycolysis are two Pyruvate, two NADH, and two ATP
