BIOLOGY HIGH SCHOOL

Glucose diffuses slowly through artificial phospholipid bilayers. The cells lining the small intestine, however, rapidly move large quantities of glucose from the glucose-rich food into their glucose-poor cytoplasm. Using this information, which transport mechanism is most probably functioning in the intestinal cells?

Answers

Answer 1
Answer:

Answer:

Facilitated diffusion

Explanation:

According to the given information, glucose is able to diffuse through the phospholipid bilayers. Both simple and facilitated diffusion transport glucose down its concentration gradient, that is, from the region of higher concentration of glucose to that of its lower concentration.

However, simple diffusion does not use the membrane proteins and is a slow process. Facilitated diffusion of glucose occurs through transmembrane proteins (channels and carriers) that serve to facilitate the transport of glucose across the bilayer at a relatively fast rate. Therefore, the transport of glucose in intestinal cells occurs by facilitated diffusion.


Related Questions

MIDDLE SCHOOL

Inexhaustible resource examples

Answers

Hi , some examples are fossil fuels , mineral ores and uranium .
HIGH SCHOOL

The fetal brain begins as a long structure that develops into a variety of different structures. what does the early shape of the fetal brain most resemble?

Answers

The early shape of the fetal brain most resemble a tube. The fetal development starts after conception. After about four weeks the neural tube together with the back is closing. The fetal brain and the spinal cord will develop from the neural tube. Then the other organs and the heart are also starting to form.
HIGH SCHOOL

Which of the following characteristics differentiates an autotroph from a heterotroph? An autotroph can only obtain its energy from a heterotroph.

A heterotroph can only obtain its energy from an autotroph.

An autotroph must obtain its energy from a heterotroph or other autotroph.. Heterotrophs only obtain their energy from the Sun.

A heterotroph must obtain its energy from an autotroph or other heterotroph. Autotrophs only obtain their energy from the Sun.Which of the following characteristics differentiates an autotroph from a heterotroph?

An autotroph can only obtain its energy from a heterotroph.

A heterotroph can only obtain its energy from an autotroph.

An autotroph must obtain its energy from a heterotroph or other autotroph.. Heterotrophs only obtain their energy from the Sun.

A heterotroph must obtain its energy from an autotroph or other heterotroph. Autotrophs only obtain their energy from the Sun.

Answers

Answer:

A heterotroph is dependent on autotroph or other heterotroph for its energy whereas Autotrophs are dependent on Sun for their energy.

Explanation:

Based upon the nutrition mode, the living organisms are classified as autotrophs and heterotrophs. The organism which has the ability to prepare its own food are called heterotrophs, whereas the organism which is dependent on autotrophs and other animals are called as heterotrophs.

Basically plant are called as autotrophs as they prepare their own food with help of sunlight, and water due to the presence of chlorophyll by process called photosynthesis.  

Animals and human beings are called as heterotrophs as they don't have ability to prepare their own food and in turn is dependent on plant and other animals.

Living things are classified as either an autotroph or a heterotroph. An autotroph can produce its own food from the substances which are directly available in the surrounding. Heterotrophs are not capable and are dependent on the produce of the autotrophs for food.  

Good luck!

MIDDLE SCHOOL

Which one of these is corretly labeled diagram of a prokaryotic cell

Answers

Prokaryotic cells are the smaller, less complex ones
Random Questions