Lec 1 ANSWERS Practice Questions 2025

Module 2 Lecture 1: Practice Questions and Answers

Comparative Physiology Branches

• Branches of Comparative Physiology

  • Not Branches:

    • Clinical physiology.

    • Veterinarian physiology.

General Themes in Comparative Physiology

• Not General Themes:

  • Speciation (formation of new species).

Physiological Changes

• Types of Changes:

  • Physiological change caused by moderate to long-term exposure:

    • An acclimatisation-induced change.

  • Haemoglobin in high-altitude living:

    • An adaptive change.

Responses to Blood Sugar Levels

• Glucagon release in high blood sugar:

  • Feedback response.

• Glucose mobilization before exercise:

  • Feedforward response.

Human Classification in Physiology

• Human Classification:

  • Temperature regulator.

  • Osmotic regulator.

  • (B and D).

Amphibian Transitions

• Transitions from Tadpole to Adult:

  • Developmental change (1).

Circadian Rhythms

• Not Examples of Circadian Rhythms:

  • Fluctuations in blood pressure with exercise.

  • Increase in blood adrenaline levels with stress.

Environmental Factors in Aquatic vs. Terrestrial Environments

• Primary Environmental Factor:

  • Differences in oxygen levels.

Carbon Dioxide Levels in Various Environments

• Elevated Carbon Dioxide Locations:

  • Underground burrows.

Freshwater Fish Characteristics

• Correct Statement:

  • Freshwater fish gain water and lose ions.

Seawater Fish Characteristics

• Correct Statement:

  • Seawater fish lose water and gain ions.

Fish Kidney Functions

• Organ Performing Kidney Functions in Fish:

  • The gills.

Sharks in Brackish Water

• Best Shark for Brackish Water:

  • Bull shark.

Deep-Sea Hydrothermal Vents Characteristics

• Characteristics of Hydrothermal Vents:

  • Incorrect statements about temperature, oxygen levels, and photosynthesis.

  • Labeled as 1 incorrect (no photosynthesis due to absence of carbon dioxide).

Predation Dynamics in Sharks

• Outcome of Battle between a Great White Shark and Killer Whale:

  • It’s an even match; sometimes one wins.

Classification of Riftia pachyptila

• Best Classification:

  • An animal.

Nervous System Divisions

• Two Main Divisions of Nervous System:

  • Central nervous system.

  • Peripheral nervous system.

Peripheral Nervous System Divisions

• Two Main Divisions of Peripheral Nervous System:

  • Somatic nervous system.

  • Autonomic nervous system.

Efferent Nervous System Divisions

• Main Divisions of Efferent Nervous System:

  • Somatic nervous system.

  • Autonomic nervous system.

Autonomic Nervous System Divisions

• Divisions of the Autonomic Nervous System:

  • Sympathetic nervous system.

  • Parasympathetic nervous system.

Somatic Branch Functionality

• Innervations of the Somatic Branch:

  • Skeletal muscle.

Autonomic Nervous System Innervations

• Innervations by Sympathetic and Parasympathetic:

  • Glands, Smooth muscle, Various other organs.

Sensory Receptors in Nervous System

• Part of which Branch:

  • Peripheral nervous system.

Steps in Nervous Reflex Arc - Interneurons

• Step Involving Interneurons:

  • Integration.

Steps in Nervous Reflex Arc - Motor Neurons

• Step Involving Motor Neurons:

  • Response.

Afferent and Efferent Nervous Systems

• Non-Involvement in Afferent or Efferent Systems:

  • Reception.

Identification of Sensory Receptors

• Not a Sensory Receptor:

  • An acetylcholine receptor.

Characteristics of Sensory Receptors

• Not a Characteristic of Generic Sensory Receptors:

  • All listed are characteristics.