1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
natita [175]
3 years ago
5

Which of the following statements about lipid processing is/are correct? Choose all that apply.

Biology
1 answer:
Serhud [2]3 years ago
3 0

Answer:

Sphingomyelin and glycolipids are precursors of ceramide.

Glycolipids are sugar molecule(s) attached to a membrane lipid.

Ceramide can be made into either sphingomyelin or a glycolipid depending on what enzyme encounters ceramide first.

Sphingomyelin is a phospholipid made in the Golgi.

Explanation:

Simple sphingolipids are the ceramides. Glycolipids, a large group of sphingolipids, contain one or more molecules of sugar (glucose or galactose).

Lipids that are synthesized in the ER (not in the RER) are cholesterol and ceramide which is further converted to either glycolipids or sphingomyelin in the golgi apparatus. Ceramide can then get sent to the Golgi, where it can be converted into either glycolipids or the only non-glycerol-based phospholipid, sphingomyelin.

SER (not RER) is involved in the synthesis of lipids, including cholesterol and phospholipids, which are used in the production of new cellular membrane.

You might be interested in
HELP PLEASE!!!!!!!
Fittoniya [83]
I believe the answer is B
4 0
3 years ago
Ouabain is a poison that binds to the na+/k+ pump in the cell membrane and inhibits its action. the expected result of this pois
Deffense [45]
The expected result of this poison on secondary active transport is that the poison will prevents the conformational changes which are necessary for the pump to perform its function, thus preventing it from been able to carry out transportation of ions in and out of the cell.
8 0
3 years ago
The purpose of transcription is to create
Levart [38]

Answer:

B. a sequence of DNA bases that duplicates a sequence of RNA bases.

Explanation:

Transcription is the first step in gene expression. It involves copying a gene's DNA sequence to make an RNA molecule.

4 0
2 years ago
Is the movement of water along the concentration gradient
Nuetrik [128]

Answer:

<em>- Is the movement of water along the concentration gradient: </em><em>Osmosis</em><em>. </em>

<em>- Is the use of energy to move the particles against the concentration gradient: </em><em>Active transport</em><em>. </em>

<em>- Is the movement of particles by diffusion without energy: </em><em>Simple diffusion</em><em>. </em>

<em>- Is the movement of particles along the concentration gradient: </em><em>Passive transport</em><em>.</em>

Explanation:

The mechanisms of cellular transport involve all the processes that the cell carries out to incorporate substances into its interior or send them to the extracellular space, through its semipermeable cell membrane.

<h3>- Osmosis</h3>

Is a type of transport that consists of the passage of water from a space with a lower concentration of solutes to one with a higher concentration, in order to reach equilibrium, following a concentration gradient.

The concentration gradient is given by the difference in concentration between two substances, which indicates the direction in which molecules, such as water, should move from one place to another.

<h3>- Active transport</h3>

Unlike passive transport mechanisms, which depend on a concentration gradient that determines the movement of particles, in active transport there are two characteristics that define it:

The passage of substances into the cell against a concentration gradient.

The use of energy to carry out this process.

In this case, the passage of substances through the cell membrane will be according to the requirements of the cell, or when they cannot pass through the membrane.

<h3>- Simple diffusion</h3>

According to the characteristics of the cell membrane, some substances can pass freely through it while others require special mechanisms. When a molecule is able to pass through the membrane without the use of special mechanisms or energy we speak of simple diffusion.

In a cell membrane, whose composition is by hydrophobic or non-polar lipid molecules, simple diffusion allows the passage of non-polar molecules, gases and alcohol.

<h3>- Passive transport</h3>

Refers to the mechanism of entry and exit of substances from the cell that does not require the use of energy.

The mechanisms involved in the passive transport of the cell are simple diffusion, osmosis, facilitated diffusion - which requires special conveyors or channels - and ultrafiltration, which depends on hydrostatic pressure. Examples of substances using this mechanism are lipid molecules, water and electrolytes.

Learn more:

Lipidic bilayer and cellular transport brainly.com/question/6955159

3 0
3 years ago
2. Organize: Compare the colors of the following stars in the Star collection: Aldebaran,
Nata [24]

The colors for the stars are red, white, blue-white, white, and blue, and their temperature are 3,910 K, 3,500 K, 25,200 K, 22,400K, 5,780K, 9,600 K.

<h3>What is a star?</h3>

A star is a type of celestial body that can be set apart from others because it shines due to inner radiation. Moreover, stars are classified by:

  • Color
  • Size
  • Location
  • Temperature
  • Age

Now, let's identify the color and temperature of the stars:

  • Aldebaran: This star has a temperature of 3,910 K and its color is red.
  • Betelgeuse: This star has a temperature of 3,500 K and its color is red.
  • Sirius B: This star has a temperature of 25,200 K and its color is white.
  • Spica: This star has a temperature of 22,400K and it is a blue-white star.
  • The Sun: This star has a temperature of 5,780K and its color is white.
  • Vega:  This star has a temperature of 9,600 K and it is a blue star.

Learn more about stars in: brainly.com/question/2166533

8 0
2 years ago
Other questions:
  • Climate change can have a large impact on coral reefs. How does climate change impact coral?
    10·2 answers
  • A$55.00 purse is on sale for $30.25
    13·2 answers
  • Approximately how much freshwater is easily accessible to humans on earth A. 97% , B. 10% , C. Less than 1%
    12·2 answers
  • Which type of mutation results in receiving an extra chromosome?
    8·2 answers
  • Medications that block the reuptake of serotonin will thereby increase the concentration of serotonin molecules in the select on
    15·1 answer
  • During photosynthesis, plants take in carbon dioxide, water, and energy from the sun and produce carbohydrates and oxygen. Which
    11·1 answer
  • Which form of precipitation is water that falls as chunks of solid ice?
    13·2 answers
  • What was Marshall Nirenberg and Heinrich Matthaei’s contribution to our current understanding of the genetic code?
    8·1 answer
  • Which technological tool helps earth scientists gain new knowledge about earth’s subsurface?
    6·2 answers
  • Natural selection is an evolutionary mechanism by which _______. a. advantageous traits are eliminated in a population b. advant
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!