A student observes that sensory neurons and motor neurons meet through interneurons. Interneurons are mainly involved in:
Correct Answer: A. Processing and connecting neural pathways
MCQ Collection
Animal Form and Function-I MCQs
Practice Animal Form and Function-I questions with answers and explanations.
A hormone binds a receptor on the cell membrane because it cannot easily cross the lipid bilayer. The hormone is most likely:
Correct Answer: A. Peptide hormone
An animal avoids an overheated surface. The receptors first activated are:
Correct Answer: A. Thermoreceptors and pain receptors
A motor neuron is damaged after injury. The most direct problem will be:
Correct Answer: A. Reduced command signals to muscles
A receptor measuring internal carbon dioxide level would help maintain:
Correct Answer: A. Homeostasis
A steroid hormone changes gene expression in a target cell. This is possible because steroid hormones generally:
Correct Answer: A. Cross membranes and bind intracellular receptors
A bright light causes pupil constriction. This response begins when light stimulates:
Correct Answer: A. Photoreceptors in the eye
A gland secretes in response to autonomic nerve activity. In this case, the gland acts as an:
Correct Answer: A. Effector
A student studying eye function notes that rods help in dim light. Rod cells are a type of:
Correct Answer: A. Photoreceptor
A patient has low thyroxine and reduced metabolic rate. The affected endocrine gland is the:
Correct Answer: A. Thyroid gland
A student says sensory receptors create energy from nothing. The correct idea is that receptors:
Correct Answer: A. Transduce stimulus energy into nerve signals
A student links communication with survival. Rapid nerve signaling is especially important for:
Correct Answer: A. Escape responses