The substances resulting from the digestion of carbohydrate, protein and fat molecules which are absorbed by the small intestine. Introduction: The tubular organ that extends from stomach’s pyloric sphincter to the large intestine is known as the small intestine. It consists of three portions duodenum, jejunum and ileum. The tiny projections throughout the inner surface of the small intestine are known as Intestinal villi. They increase the surface area greatly which helps in the absorption of nutrients. The free surface of enterocytes has fine extensions of epithelial cells known as microvilli which form brush border and facilitates the process of absorption by increasing the surface area and number of intestinal enzymes. The intestinal enzymes are peptidase, lipase, enterokinase, sucrase, maltase, and lactase.

Question

Want to see the full answer?

Answer 1

Question

Chapter 17, Problem 45P

Summary Introduction

To determine:

The substances resulting from the digestion of carbohydrate, protein and fat molecules which are absorbed by the small intestine.

Introduction:

The tubular organ that extends from stomach’s pyloric sphincter to the large intestine is known as the small intestine. It consists of three portions duodenum, jejunum and ileum. The tiny projections throughout the inner surface of the small intestine are known as Intestinal villi. They increase the surface area greatly which helps in the absorption of nutrients.

The free surface of enterocytes has fine extensions of epithelial cells known as microvilli which form brush border and facilitates the process of absorption by increasing the surface area and number of intestinal enzymes. The intestinal enzymes are peptidase, lipase, enterokinase, sucrase, maltase, and lactase.

Expert Solution & Answer

Want to see the full answer?

Check out a sample textbook solution

See solution

Students have asked these similar questions

You are studying the effect of directional selection on body height in three populations (graphs a, b, and c below). (a) What is the selection differential? Show your calculation. (2 pts) (b) Which population has the highest narrow sense heritability for height? Explain your answer. (2 pts) (c) If you examined the offspring in the next generation in each population, which population would have the highest mean height? Why? (2 pts) (a) Midoffspring height (average height of offspring) Short Short Short Short (c) Short (b) Short Tall Short Tall Short Short Tall Midparent height (average height of Mean of population = 65 inches Mean of breading parents = 70 inches Mean of population = 65 inches Mean of breading parents = 70 inches Mean of population = 65 inches Mean of breading parents = 70 inches

P You are studying a population of 100 flowers that has two alleles at a locus for flower color, blue (B) and green (G). There are 15 individuals with the BB genotype, 70 individuals with the BG genotype, and 15 individuals with the GG genotype. (a) What are the allele frequencies of B and G in the starting population? Show your calculations. (2 pts) (b) Is this population in Hardy-Weinberg equilibrium? Show your calculations. (3 pts) 12pt v Paragraph BIU UA AV & VT2V f CO V

In a natural population of outbreeding plants, the variance of the total number of seeds per plant is 16. From the natural population, 20 plants are taken into the laboratory and developed into separate true-breeding lines by self- fertilization-with selection for high, low, or medium number of seeds-for 10 generations. The average variance in the tenth generation in each of the 20 sets is about equal and averages 5.8 across all the sets. Estimate the broad-sense heritability for seed number in this population. (4 pts) 12pt v Paragraph BIUA V V T² v B ① O words