MCQs

Q451: Which statement best describes difference between Prokaryotic cell and Eukaryotic cell? | Prokaryotic Cell | Eukaryotic Cell

• A) Membrane bound organelle is present | Membrane bound organelle is absent
• B) Ribosomal subunits are 50s & 30s| Ribosomal subunits are 60s & 40s
• C) DNA is double stranded | DNA is circular

Q452: Which of the following independently reproduces in the cell? A. Golgi complex B. Nucleus C. Chloroplast D. Endoplasmic reticulum

• A) Golgi complex
• B) Nucleus
• C) Chloroplast

Q453: Skeletal muscle cells are having?

• A) Less SER & more RER
• B) More SER & less RER
• C) Equal amount of SER & RER

Q454: Which one is the correct direction of action potential along the neuron?

• A) Axon → post synaptic terminal
• B) Schwann cells → pre synaptic terminal
• C) Cell body → pre synaptic terminal

Q455: A brief phase in which neuron regains its original ionic distribution and polarity is called?

• A) Repolarization
• B) Synaptic delay
• C) Saltatory period

Q456: Concentration of Na+ and K+ ions during resting membrane potential is: | Inside Neuron | Outside Neuron

• A) K+ 30 times | Na+ 10 times
• B) K+ 10 times | Na+ 30 times
• C) Na+ 10 times | K+ 30 times

Q457: Parts of brain that comprise the limbic system?

• A) Thalamus, amygdala, hippocampus
• B) Hypothalamus, amygdala, hippocampus
• C) Hypothalamus, corpus callosum, hippocampus

Q458: Ions involved in synaptic transmission of nerve impulse?

• A) K+, Ca++, Na+
• B) Na+, K+
• C) Na+, Ca++

Q459: Correct sequence of the four elements of a neural pathway in simple-reflex circuit?

• A) Sensory neuron → associative neuron → motor neuron → muscles
• B) Muscles → sensory neuron → associative neuron → motor neuron
• C) Motor neurons → associate neuron → Sensory neuron → muscles

Q460: Which of the following theories of evolution can best explain the vestigial organs?

• A) Lamarckism
• B) Darwinism
• C) Natural selection