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Travka [436]
3 years ago
9

Capillaries and veins have the same function. * O True O False​

Biology
1 answer:
kotegsom [21]3 years ago
8 0

Answer:

Explanation:

True

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Q2.1 - Hydrogen bonds can form with bases on the opposite DNA strands in the double helix, or between the bases and H2O in the s
Natali [406]

Answer:

Explanation:

In the  structure of  Nucleic acids the nucleobases (nucleotide and bases) are arranged is  a specific  form.This form of arrangement is called Base stacking.It simply refers to the bond formed between the adjacent bases.

These nitrogenous bases of (A,T,C.G) pairing  in DNA are in planes in geometry.The bases planes stack  with one another.This form of arrangement  give rooms for more Van der Waals interactions in the plane of the bases.Although the Van der Waals are weak interactions,the bond ensure that these bases are braided or twisted together to give maximum energy,to maintain stability of the bases,and therefore of DNA structure

Therefore in water  and other aqueous solution the stability of  structure of DNA is enhanced by the base stacking,(coiling or twisting)with maximum van der waals interaction  among the bases, than the hydrogen  bonds formed between bases.Generally there are more stacking among G-C,than A-T,thus the former pairing contribute more the structural stability than the latter (A-T)

7 0
4 years ago
What’s the purpose of the pH scale
GaryK [48]
Its a logarithmic scale that tells you how acidic or basic a substance is
5 0
4 years ago
Read 2 more answers
13. What two sub-processes do NADH and FADH2 cycle between? What do they do at each location?
slamgirl [31]

NADH and FADH2 cycle is responsible for the production of small amount of energy in the form of ATP.

<h3>What occur in the NADH and FADH2 cycle? </h3>

FADH2 and NADH are created through reduction-oxidation reactions in the Krebs cycle. This cycle produces small amounts of energy in the form of adenosine triphosphate (ATP), and also responsible for the production of compounds i.e. FADH2 and NADH. NADH produces 3 ATP whereas FADH2 produces 2 ATP molecules

So we can conclude that NADH and FADH2 cycle is responsible for the production of small amount of energy in the form of ATP.

Learn more about Kreb's cycle here: brainly.com/question/1770424

#SPJ1

6 0
2 years ago
Autotrophs that utilize light as their energy source are
k0ka [10]

The correct answer is - phototrophs.

Some of the autotrophs are able to convert the electromagnetic energy from the sunlight into chemical energy in the form of reduced carbon (C). The autotrophs that are able to perform this are called phototrophs. The green plants and the algae are the most prominent members of the phototroph autotrophs.

In essence, the autotrophs are producers, meaning that they are able to produce their own food. The phototrophs are the part of the autotrophs that are able to use the sunlight to produce small amounts of ATP as well as the energy carrier NADHP. By producing the ATP and the NADHP the phototrophs manage to produce glucose, or rather sugars, which are actually their food.

8 0
3 years ago
Which one of the following is the correct answer ?
Levart [38]
Answer:

B,
chemiosmosis is the movement of ions across a semipermeable membrane. For example, the movement of of hydrogen ions in cellular respiration and photosynthesis
6 0
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