MCQs with answers on the topic “Hormonal Control of Reproduction in Mammals”
1. Which of the following hormones is produced by the hypothalamus to regulate the release of FSH and LH? a) Prolactin b) GnRH c) Estrogen d) Progesterone Answer: b) GnRH 2. What is the primary function of Follicle-Stimulating Hormone (FSH) in females? a) Stimulate ovulation b) Stimulate the development of ovarian follicles c) Increase progesterone production d) Inhibit the release of estrogen Answer: b) Stimulate the development of ovarian follicles 3....
The Lymphatic System: A Key Player in Immunity and Fluid Balance
Introduction The lymphatic system is a vital part of the human body, playing a crucial role in immunity and maintaining fluid balance. Often overlooked compared to other systems, the lymphatic system performs essential functions that protect the body from infections and regulate the fluids that surround cells. This system consists of a complex network of lymphatic vessels, lymph nodes, lymph,...
Questions and Answers on “Lymphatic System: Role in Immunity and Fluid Balance”
1. What is the lymphatic system, and what are its primary functions? Answer: The lymphatic system is a network of vessels, tissues, and organs that work together to defend the body against infections and maintain fluid balance. Its primary functions include: Immunity: The lymphatic system is an integral part of the immune system. It filters harmful substances and pathogens from the...
MCQs and Answers on “Lymphatic System: Role in Immunity and Fluid Balance”
1. What is the primary function of the lymphatic system? a) Blood circulation b) Nutrient absorption c) Immunity and fluid balance d) Hormone regulation Answer: c) Immunity and fluid balance 2. Which of the following structures is NOT a part of the lymphatic system? a) Lymph nodes b) Spleen c) Heart d) Thymus Answer: c) Heart 3. The fluid within the lymphatic system is called: a) Plasma b) Lymph c) Blood d) Cerebrospinal fluid Answer: b)...
Neurotransmitters: The Chemical Messengers of the Nervous System
Introduction Neurotransmitters are the chemical messengers that play a central role in transmitting signals across synapses in the nervous system. These molecules are essential for communication between neurons, enabling the brain to regulate bodily functions, cognitive processes, and emotional responses. The intricate signaling processes involving neurotransmitters facilitate everything from muscle contraction to mood regulation, making them crucial for maintaining physiological...
Questions and answers on Neurotransmitters: Role in Signal Transmission
1. What is the role of neurotransmitters in signal transmission within the nervous system? Answer: Neurotransmitters are chemical messengers that transmit signals across synapses from one neuron to another. The process begins when an action potential reaches the axon terminal of a presynaptic neuron. This triggers the release of neurotransmitters into the synaptic cleft. These neurotransmitters bind to specific receptors...
MCQs on Neurotransmitters: Role in Signal Transmission
1. What is the primary function of neurotransmitters? a) To provide nutrients to neurons b) To transmit signals across synapses c) To protect neurons from damage d) To regulate the blood-brain barrier Answer: b) To transmit signals across synapses 2. Which of the following is a common neurotransmitter in the central nervous system? a) Insulin b) Acetylcholine c) Glucagon d) Prolactin Answer: b) Acetylcholine 3. Which neurotransmitter is associated with the...
Hibernation and Aestivation: Nature’s Survival Mechanisms
Introduction Hibernation and aestivation are two remarkable survival strategies used by animals to cope with extreme environmental conditions. While hibernation is a response to cold, typically observed in temperate climates during winter, aestivation is an adaptation to hot and dry conditions, usually seen in arid environments. These processes allow animals to survive when resources are scarce, protecting them from extreme...
Questions and Answers on “Hibernation and Aestivation: Survival Strategies”
1. Explain the concept of hibernation and how it helps animals survive winter. Answer: Hibernation is a state of dormancy in animals where their metabolic rate significantly decreases, allowing them to survive in harsh winter conditions when food is scarce. During hibernation, an animal’s body temperature drops to near the ambient temperature, heart rate and respiration slow down, and energy consumption...
MCQs on Hibernation and Aestivation: Survival Strategies
What is the primary purpose of hibernation in animals?a) To increase energy levels b) To conserve energy during cold periods c) To improve digestion d) To mate and reproduce Answer: b) To conserve energy during cold periods Which of the following animals is known for hibernating?a) Eagle b) Bat c) Dolphin d) Elephant Answer: b) Bat Hibernation occurs most commonly in which type of animals?a) Endotherms b)...
