The part of the neuron that is usually myelinated and conducts impulses away from the cell body is the: MCQ with Answer and Explanation

The part of the neuron that is usually myelinated and conducts impulses away from the cell body is the:
A. Axon
B. Synapse
C. Dendrite
D. Cell body
Answer: Option A
Solution (By JKExamLibrary)
The axon is a long, slender projection of the neuron that carries nerve impulses (action potentials) away from the soma to other neurons, muscles, or glands. Axons are often insulated by a myelin sheath. Dendrites receive signals, the cell body contains the nucleus, the synapse is the junction.

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Practice More Biology Questions

Question #1
Which of the following animals belongs to the class Chondrichthyes?
A. Catla catla
B. Labeo rohita
C. Pristis (Sawfish)
D. Hippocampus

Correct Answer: Option C


Explanation:
Chondrichthyes are cartilaginous fishes with a skeleton made entirely of cartilage, a ventral mouth, and lack operculum. Pristis (sawfish), Scoliodon (dogfish), and Carcharodon (great white shark) belong to this class. Labeo rohita (Rohu) and Catla catla are Osteichthyes (bony fishes). Hippocampus (seahorse) is also a bony fish. Exam tip: Chondrichthyes = cartilaginous; Osteichthyes = bony.

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Question #2
Which tissue provides mechanical support and flexibility to the growing parts of a plant?
A. Sclerenchyma
B. Xylem
C. Collenchyma
D. Parenchyma

Correct Answer: Option C


Explanation:
Collenchyma is a simple permanent tissue characterized by cells with thickened corners due to the deposition of cellulose and pectin. It provides mechanical support, tensile strength, and flexibility to the growing parts of the plant (like stems and petioles), allowing them to bend without breaking. Parenchyma is for storage, and sclerenchyma provides rigid support.

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Question #3
The structure in the chloroplast that is the site of the light-dependent reactions is the:
A. Outer membrane
B. Stroma
C. Thylakoid membrane
D. Inner membrane

Correct Answer: Option C


Explanation:
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This question belongs to: Science Biology