The enzyme that breaks down fats in the digestive system is:
A. Sucrase
B. Pepsin
C. Amylase
D. Lipase
Answer: Option D
Solution (By JKSSB Mock Tests)
Lipase, primarily pancreatic lipase, hydrolyzes triglycerides into monoglycerides and free fatty acids in the small intestine, aided by bile salts that emulsify fats. Amylase digests starch, pepsin proteins, sucrase sucrose. Lipases are also secreted by lingual and gastric glands but pancreatic lipase is the main.
Explanation:
Thyroxine (T₄) and triiodothyronine (T₃) from the thyroid gland increase the metabolic rate of most tissues, heat production, and oxygen consumption. Insulin and glucagon regulate glucose, cortisol is a stress hormone with metabolic effects but not the primary basal regulator. Hypothyroidism leads to decreased BMR.
Explanation:
In prometaphase, the nuclear envelope breaks down, and spindle microtubules attach to kinetochores at the centromeres of chromosomes. This is a crucial step before alignment. In prophase, chromosomes condense; metaphase aligns them at the equator; anaphase separates chromatids. Prometaphase follows prophase in many descriptions.
Explanation:
Genetics is the science of heredity and variation, explaining how traits are passed from parents to offspring and why individuals differ. Ecology studies organisms and environment, embryology deals with development, paleontology with fossils. Gregor Mendel is the father of genetics. The term 'genetics' was coined by William Bateson.
No comments yet. Be the first to start the discussion!