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NEET UG _ Assertions and Reasons _ Challenge
S# Assertion (True or False)? Reason (Logical or Illogical)?
Dehydration disrupts enzyme function. Water molecules are crucial for maintaining the three-
1
dimensional structure and active sites of enzymes.
Mutations in regulatory genes can cause Regulatory genes control protein synthesis, and mutations
2
uncontrolled cell division. can lead to the overproduction of cell growth factors.
Electrolytes are essential for maintaining nerve Electrolytes conduct electrical signals across neuronal
3
impulses. membranes, enabling nerve function.
Incomplete digestion of carbohydrates leads to Undigested carbohydrates ferment in the gut, producing gas
4
bloating. that causes bloating.
Blood pressure is inversely proportional to Wider blood vessels offer less resistance to blood flow,
5
blood vessel diameter. resulting in lower blood pressure.
ADH (antidiuretic hormone) regulates water ADH signals the kidneys to retain water when blood volume
6
reabsorption in the kidneys. or pressure decreases.
The Krebs cycle occurs in the mitochondrial Enzymes and substrates required for the Krebs cycle are
7
matrix. located within the mitochondrial matrix.
Anaerobic respiration produces less ATP than Anaerobic respiration does not fully utilize the energy stored
8
aerobic respiration. in glucose, resulting in fewer ATP molecules.
Action potentials in neurons involve the Sodium influx depolarizes the neuron, while potassium efflux
9
movement of sodium and potassium ions. repolarizes it, enabling signal transmission.
Hormones act on target tissues by binding to Hormone-receptor binding triggers a cascade of cellular
10
specific receptors. signaling events leading to a physiological response.
Mutations in tumor suppressor genes can Tumor suppressor genes normally inhibit cell division, and
11
promote cancer development. mutations can disrupt this control mechanism.
The process of translation converts mRNA Ribosomes use tRNA anticodons to match specific mRNA
12 codons into amino acid sequences. codons and link corresponding amino acids to form a
polypeptide chain.
Enzymes can accelerate reactions even at Enzymes provide an alternative reaction pathway with a
13 moderate temperatures, seemingly defying lower activation energy, increasing reaction rate despite
kinetic theory. lower overall system temperature.
Blood pressure is determined by a combination Cardiac output, peripheral resistance, and blood volume all
14
of factors. contribute to determining overall blood pressure.
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