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il63 [147K]
3 years ago
14

3. Gases pass in and out of a leaf through the

Biology
1 answer:
iVinArrow [24]3 years ago
3 0

Answer:

a) stomata

Explanation:

The stomata are little pores / doorways / openings that have the express purpose of allowing gases in and out. Without this, plants would not be able to fix carbon, which is essential in respiration.

Why not c or b: The xylem and phloem channel water through the plant, not gases.

Why not d: The cuticle is the waxy outer layer of the leaf meant to protect it, not allow gases through.

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What would be the outcome of the processes shown below if the mRNA never moved outside
Tresset [83]

Answer:

Translation is the process of protein synthesis in which the genetic information encoded in mRNA is translated into a sequence of amino acids in a polypeptide chain

Ribosomes bind to mRNA in the cell's cytoplasm and move along the mRNA molecule in a 5' - 3' direction until it reaches a start codon (AUG)

Anticodons on tRNA molecules align opposite appropriate codons according to complementary base pairing (e.g. UAC will align with AUG)

Each tRNA molecule carries a specific amino acid (according to the genetic code)

Ribosomes catalyse the formation of peptide bonds between adjacent amino acids (via a condensation reaction)

The ribosome moves along the mRNA molecule synthesising a polypeptide chain until it reaches a stop codon, at this point translation stops and the polypeptide chain is released

Explanation:

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3 years ago
Protein X is a protein that is composed of four subunits of equal size--alpha, beta, delta, and gamma--that are bound by either
Sphinxa [80]

Answer:

One.

Explanation:

SDS (sodium dodecyl sulfate) PAGE ( Polyacrylamide gel electrophoresis) is the technique of the separation of the molecules on the basis of their molecular weight.

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3 0
3 years ago
The plasmodesmata in plants are functionally most similar to which animal cell junction?
morpeh [17]

Answer:

B.) Gap junction

Explanation:

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5 0
2 years ago
What is megnet!?!?!?!?!?!!?!??!?!?!?!?!?!?!?!?!?!?!?!?!?
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