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
densk [106]
3 years ago
8

Which class of hydrocarbons contains at least one carbon-carbon triple bond?

Biology
1 answer:
butalik [34]3 years ago
8 0

Answer:

Alkenes, A hydrocarbon with at least one carbon–carbon double bond that is unsaturated. An unsaturated hydrocarbon with at least one carbon—carbon triple bond between two carbon atoms is known as an alkyne.

Explanation:

You might be interested in
One of the grand challenges in biology is understanding how the first cells formed on Earth. Since all cells are bound by a cell
coldgirl [10]
<h2>Answer is option "A"</h2>

Explanation:

  • Oils and fats, which in science are called lipids, are known as amphipathic molecules. These molecules have two distinct ends to them: a water-loving (hydrophilic) side and a water-fearing (hydrophobic) side. While the hydrophilic sides of a lipid will associate with the water in a solution, the hydrophobic sides of the lipid all cluster together to 'hide' from the water. Lipids therefore cluster together and form spheres where the hydrophobic sides are in the center away from the water while the hydrophilic sides are on the outside, associating with the water.
  • The ability of the atoms within a group to form hydrogen bonds with the water molecules around them makes them hydrophilic. Oxygen and nitrogen atoms readily form hydrogen bonds with water molecules, so any organic molecules that have oxygen or nitrogen atoms bound to their carbon skeletons will be hydrophilic.
  • For example, if we take the molecule for cholesterol, we see the OH group on the left is hydrophilic and will form hydrogen bonds with water, while the ring structures, which only consist of hydrogen and carbon atoms, are hydrophobic and will not associate with the water.
  • There are many different kinds of lipids with different functions. Lets start by examining phospholipids, which compose the cell membranes of animals. They form lipid bilayers, with one set of hydrophilic heads facing the exterior of the cell membrane and the other set facing the interior (as you can see on the diagram on screen). The hydrophobic portions of the lipid bilayer - the lipid tails - face towards one another, which allows them to hide away from the water inside and outside of the cell.
  • So,the right answer is option A "amphipathic molecules".

5 0
3 years ago
What parts of a cell are most likely involved with inherited traits?
Helga [31]

Answer:

Homologous chromosomes are paired early in the cell reproduction process. and one pair of sex chromosomes The autosomes carry the genes that determine most body characteristics

Explanation:

8 0
2 years ago
Read 2 more answers
How long after water breaks should baby be delivered
sergey [27]

Answer:

where your baby is at least 37 weeks

Explanation:

In cases where your baby is at least 37 weeks, current research suggests that it may be safe to wait 48 hours (and sometimes longer) for labor to start on its own. (But your caregiver may have a different protocol, like 24 hours.)

5 0
3 years ago
A scientist is using a species of green algae to study the electron transport chain in photosynthesis. He uses a laser to inacti
jeka94

Answer:

D) In case 1, both PS I and PS II completely lose function; in case 2, a proton gradient is still produced.

Explanation:

The light dependent reaction of photosynthesis, which produces the ATP and NADPH needed in the light independent stage of the process, includes complexes of proteins and pigments called PHOTOSYSTEMS. These photosystems (I and II) are key to the functionality of the light dependent reactions in the thylakoid.

The major pigment present in both photosystems is CHLOROPHYLL A, which absorbs light energy and transfers electrons to the reaction center. Chlorophyll B is only an accessory pigment meaning it can be done without. Hence, if all of the chlorophyll A is inactivated in the algae but leaves chlorophyll B intact as in case 1, both PS I and PS II will lose their function because Chlorophyll A is the major pigment that absorbs light energy in both photosystems.

In case 2, if PS I is inhibited and PS II is unaffected, a PROTON GRADIENT WILL STILL BE PRODUCED because the splitting of water into protons (H+) and electrons (e-) occurs in PSII. Hence, H+ ions can still be pumped into the inner membrane of the thylakoid in order to build a proton gradient even without the occurrence of PS I.

3 0
3 years ago
Brandon burns and christina santhouse lost neurons due to injury and/or surgery. one potential application of _____ could be to
anzhelika [568]

The answer is a stem cell.  there is the unspecialized cell that generates or capable of renewing themselves through cell generation. Stem cells are important for living organisms for many reasons. In the 3- to 5-day-old embryo, called a blastocyst<span>, the inner cells give rise to the entire body of the organism, including all of the many specialized cell types and organs such as the heart, lungs, skin, sperm, eggs and other tissues.</span>

8 0
3 years ago
Other questions:
  • Scientists are required to __________ to determine a substance’s risk. a. research how chemicals react with living cells b. cond
    7·1 answer
  • How are proteins constructed from amino acids?
    7·1 answer
  • Which layer of the atmosphere do thunderstorms take place in?
    9·1 answer
  • Which of the following statements is true when we compare and contrast electromagnetic waves with sound waves?
    15·1 answer
  • SOLAR ENERGY THAT HAS BEEN ABSORBED BY THE HYDROSPHERE IS TRANSPORTED AROUND THE EARTH BY
    13·1 answer
  • Please HELP!!!!!!!!!!!!
    10·1 answer
  • Which correctly lists three planets that have rings?
    7·2 answers
  • Carry out a tri-hybrid cross between XX(tall) YY(fat) ZZ(fair) and xx(short) yy(slim) zz(black). Find their genotypic and phenot
    7·1 answer
  • Lois and Lang are in a heated discussion over the effectiveness of psychotherapy. Lois maintains that psychotherapy works for mo
    8·1 answer
  • Ayuda ,tengo que decidir el anticonceptivo adecuado pero me confundo mucho con los implantes y El DIU :(​
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!