miscellaneous
Which of the following amino acids is essential in humans?
A) Glutamine
B) Alanine
C) Lysine
D) Tyrosine
C) Lysine
Process by which the neural plate forms the neural tube.
A) Neurulacion
B) Gastrulacion
c) Urogenesis
D) Ovogénesis
A) Neurulacion
What is the function of the organelle responsible for the chemical modification of proteins?
A) Mitochondria
B) Ribosomes
C) Golgi apparatus
D) Lysosomes
C) Golgi apparatus
Claro, aquí tienes la pregunta en inglés con cuatro opciones de respuesta:
Question:
What is the normal pH range of human blood?
A) 6.8 – 7.0
B) 7.35 – 7.45
C) 7.5 – 8.0
D) 6.0 – 6.5
B) 7.35 – 7.45
long superficial muscle of the neck
a) esternocleidomastoideo
b) Platysma
c) Trapezius
a) esternocleidomastoideo
What is the first branch of the aortic arch?
A) Left subclavian artery
B) Left common carotid artery
C) Brachiocephalic trunk
D) Right subclavian artery
C) Brachiocephalic trunk
When does the anterior neuropore close?
A) Day 25
B) Day 28
C) Day 21
D) Day 27
A) Day 25
In relation to the cell cycle, during which phase does the cell begin to uptake nutrients and synthesize RNA?
A) G0 phase
B) S phase
C) G1 phase
D) G2 phase
C) G1 phase.
Which of the following is an essential amino acid in the human diet?
A) Glycine
B) Alanine
C) Leucine
D) Serine
C) Leucine
How many cervical vertebrae does the human body have?
A) 5
B) 7
C) 8
D) 6
b) 7
Which type of epithelium lines the alveoli of the lungs?
A) Simple squamous epithelium
B) Stratified squamous epithelium
C) Simple cuboidal epithelium
D) Transitional epithelium
A) Simple squamous epithelium
It involves the budding from existing vessels:
A) Angiogenesis.
B) Vasculogenesis.
C) Hematopoiesis.
D) Organogenesis
Which of the following dyes is acidic in nature?
A) Hematoxylin
B) Methylene blue
C) Eosin
D) Crystal violet
C) Eosin
Which of the following is the main buffer system that helps maintain the pH of human blood?
A) Phosphate buffer system
B) Protein buffer system
C) Bicarbonate buffer system
D) Ammonia buffer system
C) Bicarbonate buffer system
Which of the following muscles is a deep extensor of the neck?
A) Sternocleidomastoid
B) Trapezius
C) Splenius cervicis
D) Platysma
C) Splenius cervicis
Which epithelial type is specialized for absorption in the small intestine?
A) Stratified cuboidal
B) Simple columnar with microvilli
C) Pseudostratified columnar
D) Transitional epithelium
B) Simple columnar with microvilli
The membrane breaks during which week?
A) 1
B) 7
c) 10
D) 11
B) 7
What is the protein-DNA complex responsible for the characteristic basophilia of the nucleus?
A) Ribosome
B) Chromatin
C) Nucleolus
D) Centrosome
B) Chromatin
Which statement best describes the tertiary structure of a protein?
A) It is the sequence of amino acids in a polypeptide chain.
B) It refers to the local folding of the polypeptide into alpha-helices and beta-sheets.
C) It is the overall three-dimensional shape of a single polypeptide chain.
D) It describes the arrangement of multiple polypeptide subunits in a protein.
C) It is the overall three-dimensional shape of a single polypeptide chain.
Which of the following muscles inserts into the spinous processes of thoracic vertebrae?
A) Psoas major
B) Multifidus
C) Rectus abdominis
D) Digastri
B) Multifidus
What major developmental process begins during the third week of gestation?
A) Neurulation
B) Fertilization
C) Gastrulation
D) Implantation
C) Gastrulation
tsi The ventral wall of the body is completely closed, except in:
A) Mouth.
B) Eyes
C) Umbilical region.
D) Nose
C) Umbilical region.
Which protein is involved in retrograde transport from the cis-Golgi network back to the rough endoplasmic reticulum (RER)?
A) Clathrin
B) COP-II
C) Dynamin
D) COP-I
D) COP-I
Causes of metabolic acidosis with a normal anion gap include:
A) Cholestyramine
B) Acetazolamide
C) Massive rhabdomyolysis
D) A and B are true
D) A and B are true
Which muscle originates from the transverse processes of cervical vertebrae and inserts onto the first rib?
A) Levator scapulae
B) Anterior scalene
C) Trapezius
D) Sternohyoid
B) Anterior scalene