Anatomy
Which bone is known as the “collarbone”?
A) Scapula
B) Clavicle
C) Sternum
D) Humerus
B)Clavicle
At which week of development does implantation of the blastocyst usually occur?
A) Week 1
B) Week 2
C) Week 3
D) Week 4
B) Week 2
Which of the following is a monosaccharide?
A) Sucrose
B) Glucose
C) Lactose
D) Maltose
B) Glucose
Which of the following is the basic structural and functional unit of bone?
A) Osteoblast
B) Osteoclast
C) Osteon
D) Chondrocyte
C) Osteon
Which is the largest planet in our solar system?
A) Earth
B) Mars
C) Jupiter
D) Saturn
C) Jupiter
Which structure separates the thoracic cavity from the abdominal cavity?
A) Pleura
B) Peritoneum
C) Diaphragm
D) Mediastinum
C) Diaphragm
Which germ layer gives rise to the central nervous system?
A) Endoderm
B) Mesoderm
C) Ectoderm
D) Neural crest
C) Ectoderm
Which vitamin is a precursor of the coenzyme NAD⁺/NADH?
A) Vitamin C
B) Vitamin B2 (Riboflavin)
C) Vitamin B3 (Niacin)
D) Vitamin B6 (Pyridoxine)
C) Vitamin B3 (Niacin)
Which type of epithelium lines the urinary bladder?
A) Simple squamous epithelium
B) Transitional epithelium
C) Stratified squamous epithelium
D) Pseudostratified columnar epithelium
B) Transitional epithelium
Who painted the Mona Lisa?
A) Pablo Picasso
B) Vincent van Gogh
C) Leonardo da Vinci
D) Michelangelo
C) Leonardo da Vinci
Which artery is the main blood supply to the brain?
A) Brachial artery
B) Carotid artery
C) Subclavian artery
D) Femoral artery
B) Carotid artery
The primitive streak appears during which stage of development?
A) Fertilization
B) Gastrulation
C) Neurulation
D) Organogenesis
B) Gastrulation
The peptide bond in proteins is best described as:
A) A hydrogen bond between two amino acids
B) A covalent bond with partial double-bond character
C) A disulfide bond between cysteines
D) A purely ionic bond between R groups
B) A covalent bond with partial double-bond character
Goblet cells are specialized epithelial cells that primarily secrete:
A) Enzymes
B) Hormones
C) Mucus
D) Collagen
C) Mucus
Which country was the first to land a human on the Moon?
A) Russia
B) China
C) United States
D) France
C) United States
Which cranial nerve is responsible for motor innervation to most of the muscles of facial expression?
A) Trigeminal nerve (CN V)
B) Facial nerve (CN VII)
C) Vagus nerve (CN X)
D) Accessory nerve (CN XI)
B) Facial nerve (CN VII)
Which structure forms from the notochord in the adult human?
A) Spinal cord
B) Vertebral bodies
C) Nucleus pulposus of intervertebral discs
D) Spinal meninges
C) Nucleus pulposus of intervertebral discs
During glycolysis, which enzyme catalyzes the first committed step of the pathway?
A) Hexokinase
B) Phosphoglucose isomerase
C) Phosphofructokinase-1 (PFK-1)
D) Pyruvate kinase
C) Phosphofructokinase-1 (PFK-1)
In the central nervous system, myelin sheaths are produced by:
A) Schwann cells
B) Oligodendrocytes
C) Astrocytes
D) Microglia
B) Oligodendrocytes
Which ancient civilization built Machu Picchu?
A) Maya
B) Inca
C) Aztec
D) Olmec
B) Inca
The uncinate process is a feature of which vertebrae?
A) Thoracic vertebrae
B) Cervical vertebrae
C) Lumbar vertebrae
D) Sacral vertebrae
B) Cervical vertebrae
During heart development, failure of fusion of the endocardial cushions can result in:
A) Tetralogy of Fallot
B) Ventricular septal defect
C) Atrial septal defect (endocardial cushion type)
D) Transposition of the great arteries
C) Atrial septal defect (endocardial cushion type)
In the electron transport chain, inhibition of Complex IV (cytochrome c oxidase) would directly cause:
A) Accumulation of NADH and FADH₂
B) Increased ATP production
C) Increased oxygen consumption
D) Enhanced proton pumping at Complex III
A) Accumulation of NADH and FADH₂
Which type of collagen is the major component of the basement membrane (basal lamina)?
A) Type I
B) Type II
C) Type III
D) Type IV
D) Type IV
What is the capital of New Zealand?
A) Auckland
B) Wellington
C) Christchurch
D) Sydney
B) Wellington