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Firlakuza [10]
3 years ago
11

What is active transport​

Biology
2 answers:
Bumek [7]3 years ago
8 0

Answer: the movement of ions or molecules across a cell membrane into a region of higher concentration, assisted by enzymes and requiring energy.

Explanation:

Requires energy input from a cell and enables A cell to move a substance against its concentration gradient

Y_Kistochka [10]3 years ago
6 0

Answer:

active transport is when molecules move across a cell membrane from a lower concentration to a higher concentration

Explanation:

active transport needs cellular energy to get this movement

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RNA polymerase catalyzes the addition of many rNTPs to a growing RNA.
SIZIF [17.4K]

Answer:

b. Elongation

Explanation:

During the start of the elongation phase of RNA synthesis, the sigma subunit of RNA polymerase of <em>E. coli</em> is released and NusA protein takes its place. This makes the RNA polymerase to move away from the promoter.

During the elongation phase of RNA synthesis, the enzyme DNA dependent RNA polymerase elongates the RNA strand by addition of ribonucleotides to the free 3'-OH end. The process occurs in 5' to 3' direction and the 3'-OH group serves as a nucleophile.  

6 0
3 years ago
What could be a result of an injury to the dorsal column?
Mariulka [41]

Answer:

A.  loss of sensation to pressure and touch

Explanation:

Posterior column-medial lemniscus pathway  also known as  the dorsal column–medial lemniscus pathway (DMLP) is a pathway involved in recognition of sensory simulations and is found in central nervous system.

It is involved in conveying  different sensations like like touch and vibration from skin and joints. Therefore, it can be said that the pathway plays significant role in perception of sensory information from different parts of the body. If any damage occurs to the pathway it can  result in loss of sense of touch and vibration which is ultimately a lack of ability of a person to sense a touch or pressure in the body.

Hope it helps!

3 0
3 years ago
Read 2 more answers
Which is part of the alimentary canal?
liubo4ka [24]

Answer:

it's c small intestine

3 0
4 years ago
What is the central support structure of a plant
forsale [732]
The nucleolus is the central support structure
3 0
3 years ago
Which of the following is NOT true concerning conifers?
Andrew [12]

Answer: One thing that is NOT true that concerns conifers is <u>they have motile sperm. </u>

Explanation:

Conifers are a seed plant. They are usually trees that bear cones and they have vascular tissues. They are classified as gymnosperms. The living confers are all woody plants.

The trees that are conifers are;

  • Junipers
  • Cedars
  • Cypresses
  • Firs
  • Kauris
  • Redwoods
  • Spruces
  • Yews

The colors of these conifers vary and include colors such as rainbow, bronze, yellow, blue, and red.

3 0
3 years ago
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