31. If an injury occurs to the hypothalamus region of the brain, where is it most likely to be affected?
[A] regulation of body temperature
[B] decision making
[C] co-ordination during locomotion
[D] short-term memory
Show Answer
Correct Answer: A [regulation of body temperature]
Notes:
Whenever the hypothalamus is injured, it cannot control your temperature. It is located above the midbrain and below the thalamus.
32. How does food move through your digestive tract?
[A] By gravity
[B] By wavelike muscle contractions
[C] By cilia
[D] By chemical absorption
Show Answer
Correct Answer: B [By wavelike muscle contractions]
Notes:
Food moves through your digestive system by wave-like muscle contractions.
33. Cirrhosis is a liver disease described by the abnormal structure and functioning of the liver. This is mainly diagnosed by __.
[A] Blood Test
[B] Liver biopsy
[C] Physical examination
[D] All of the above
Show Answer
Correct Answer: B [Liver biopsy]
Notes:
Cirrhosis is a liver disease characterized by abnormal structure and function of the liver and diagnosed by Liver biopsy.
34. Which of the following is called the end part of the oviduct?
[A] isthmus
[B] ampulla
[C] ostium
[D] thalamus
Show Answer
Correct Answer: A [isthmus]
Notes:
Isthmus is called the end part of the oviduct. It is a narrow strip of land that connects two larger landmasses and separates two bodies of water.
35. Which of the following hormone are surges that trigger ovulation?
[A] Estrogen
[B] LH
[C] FSH
[D] Progesterone
Show Answer
Correct Answer: B [LH]
Notes:
LH hormones are surges that trigger ovulation. It is released by the anterior pituitary.
36. Which of the following virus is also known as the common cold?
[A] Variola virus
[B] Rhinovirus
[C] Varicella zoster Virus
[D] Myxovirus
Show Answer
Correct Answer: B [Rhinovirus]
Notes:
Rhinovirus is also known as the common cold. This is also called RNA Virus.
37. Homozygosity and heterozygosity of an individual can be determined by __
[A] Back cross
[B] Self-fertilization
[C] Test cross
[D] All of the above
Show Answer
Correct Answer: C [Test cross]
Notes:
An experimental cross of an individual organism of dominant phenotype but unknown genotype and an organism with a homozygous recessive genotype is known as a test cross.
38. Which of the following is an oncogenic trait?
[A] a type of trait whose phenotype is influenced by more than one gene
[B] a trait produced by the effect of a gene or an allele.
[C] a gene that has the potential to cause cancer.
[D] None of these
Show Answer
Correct Answer: C [a gene that has the potential to cause cancer.]
Notes:
A gene that has the potential to cause cancer is called an oncogenic trait.
39. Which of the following structures are present in the throat to prevent the air passage from collapsing?
[A] Rings of cartilage
[B] Rings of muscle
[C] Rings of bone
[D] Rings of connective tissue
Show Answer
Correct Answer: A [Rings of cartilage]
Notes:
Rings of cartilage are present in the throat, specifically in the trachea or windpipe, to ensure that the air passage does not collapse. These semi-circular rings provide the necessary structural support to keep the airway open regardless of pressure changes that occur during breathing. This is very important for maintaining a clear, open path for air to flow into our lungs for respiration.
40. Blood pressure is measured by ____:
[A] Hydrometer
[B] Thermometer
[C] Sphygmanometer
[D] Barometer
Show Answer
Correct Answer: C [Sphygmanometer]
Notes:
Sphygmomanometer an instrument for measuring blood pressure. It typically consists of an inflatable rubber cuff which is applied to the arm and connected to a column of mercury next to a graduated scale, enabling the determination of systolic and diastolic blood pressure by increasing and gradually releasing the pressure in the cuff. The sphygmomanometer was invented by Samuel Siegfried Karl Ritter von Basch in 1881.
