31. A membrane, or sac, that surrounds your heart is called a __.
[A] pericardium
[B] capillaries
[C] vessels
[D] None of these
Show Answer
Correct Answer: A [pericardium]
Notes:
A membrane, or sac, that surrounds your heart is called the pericardium. It holds the heart in place and helps it to function properly.
32. Which of the following is an incorrect description of the human kidney?
[A] Blood enters the kidneys through renal veins.
[B] The kidneys are located on either side of the backbone.
[C] The waste products from the kidneys leave through the ureters
[D] None of these
Show Answer
Correct Answer: A [Blood enters the kidneys through renal veins.]
Notes:
Blood flows into your kidneys through the renal artery and exits through the renal vein.
33. Complete digestion of food takes place in:
[A] Stomach
[B] Small Intestine
[C] Pancreas
[D] Large Intestine
Show Answer
Correct Answer: B [Small Intestine]
Notes:
Complete digestion of food takes place in Small Intestine. The small intestine carries out most of the digestion process, absorbing almost all of the nutrients from foods into your bloodstream.
34. A process where new combinations of alleles are formed is called?
[A] Genetic Drift
[B] Mutation
[C] Genetic Recombination
[D] Natural selection
Show Answer
Correct Answer: C [Genetic Recombination]
Notes:
A process where new combinations of alleles are formed is called Genetic Recombination.
35. Which of the following is green manure?
[A] Rice
[B] Sorghum
[C] Maize
[D] Sesbania
Show Answer
Correct Answer: D [Sesbania]
Notes:
Sesbania is green manure. Sesbania is a leguminous crop. It is commonly used as a green manure crop to add nitrogen and organic matter to the soil.
36. Protein part of enzyme is known as ____:
[A] Isoenzyme
[B] Holoenzyme
[C] Apoenzyme
[D] All of the above
Show Answer
Correct Answer: C [Apoenzyme]
Notes:
Enzymes are defined as biological catalysts. Chemically all enzymes are globular proteins. Each enzyme catalyses only one chemical reaction. Protein part of enzyme is known as Apoenzyme. It forms an active enzyme system by combination with a coenzyme and determines the specificity of this system for a substrate.
37. Which one of the following is the ideal food for newborn babies?
[A] Milk
[B] Water
[C] Honey
[D] Sugar
Show Answer
Correct Answer: A [Milk]
Notes:
The best food for the newborn baby is mother’s milk initial secretion call colostrum. Breast milk is free from contamination and adulteration and supplies necessary immunoglobulins and nutrients in almost correct amounts. It protects against allergies, sickness, and obesity. It protects against diseases, like diabetes and cancer. It protects against infections, like ear infections. It is easily digested – no constipation, diarrhea or upset stomach.
38. Intestinal bacteria synthesizes which of the following in the human body?
[A] Vitamin D
[B] Vitamin K
[C] Proteins
[D] Fats
Show Answer
Correct Answer: B [Vitamin K]
Notes:
Vitamin K is synthesized by bacteria in the intestinal tract of man and most animals in quantities sufficient to meet their needs. Besides, intestinal bacteria may also synthesize Vitamin B such as Thiamine (B1), Riboflavin (B2), Niacin (B3), Pantothenic Acid (B5), Pyroxidine (B6), and Biotin (B7), Folic Acid (B9) and Cobalamin (B12).
39. Which of the following vitamins help in the absorption of calcium?
[A] Vitamin A
[B] Vitamin B
[C] Vitamin C
[D] Vitamin D
Show Answer
Correct Answer: D [Vitamin D]
Notes:
Vitamin D is essential in helping the body absorb and use calcium; in fact, the body cannot absorb calcium at all without some vitamin D. Vitamin D helps our intestines absorb calcium from the food we eat and helps build stronger bones.
40. Just born baby has the respiratory rate as ____:
[A] 15 times/minute
[B] 18 times/minute
[C] 26 times/minute
[D] 32 times/minute
Show Answer
Correct Answer: A [15 times/minute]
Notes:
New born babies and children normally breathe faster than older children and adults. Their respiratory rate is about 30-60 breaths per minute. The respiratory rate for the different age-categories of children is:-6-12 months: 24-30; 1-5 years: 20-30; 6-12 years: 12-20.
