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Makovka662 [10]
2 years ago
11

What is the Maize C4 photosynthesis process

Biology
1 answer:
julia-pushkina [17]2 years ago
3 0

Answer:

C4 plants—including maize, sugarcane, and sorghum—avoid photorespiration by using another enzyme called PEP during the first step of carbon fixation. This step takes place in the mesophyll cells that are located close to the stomata where carbon dioxide and oxygen enter the plant.

Explanation:

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The largest amount of carbon dioxide is transported in the bloodstream in the form of carbonic anhydrase. True False
motikmotik

Answer: False, it is transported as bicarbonate

Explanation: Carbonic anhydrase is an enzyme belonging to the family of metalloenzymes that catalyzes the conversion of carbon dioxide and water to ions and carbonic acid. This enzyme is found in red blood cells where carbon dioxide enters by diffusion. Once it diffuses through it is then converted by carbonic anhydrase to bicarbonate and hydrogen ions.

That is how its transported in bloodstream, passes through the heart via the venous system, to the lungs. Therefore the answer is False.

5 0
3 years ago
How would a small, uncharged lipid move across the cell membrane?
ElenaW [278]

Answer:

Through simple diffusion, down the concentration gradient.

Explanation:

The phospholipids of the membrane are amphipathic with hydrophillic heads and hydrophobic tails. Other polar molecules cannot go through this hydrophobic interior. Since small uncharged lipids are non polar and hydrohobic, they are able to go through the membrane without the help of transport proteins. Therefore, the last two options can be ruled out because facilitated diffusion includes the use of a protein. Diffusion involves molecules moving down the concentration gradient so the second option can be ruled out.

5 0
3 years ago
Diatoms are planktonic unicellular eukaryotes commonly found in oceans and lakes. They contain chloroplasts that have four membr
Zepler [3.9K]

Diatoms contain chloroplasts that have four membranes. These four membranes are evidence of secondary endosymbiosis (Option c).

<h3>What is secondary endosymbiosis?</h3>

Secondary endosymbiosis is a hypothesis used to explain why diatom chloroplasts have four membranes.

According to this hypothesis, diatoms received different genes from distinct photosynthetic and non-photosynthetic ancestors.

The acquisition of genes of different ancestors led to diatoms having chloroplasts with four membranes.

Learn more about the endosymbiosis hypothesis here:

brainly.com/question/2957447

5 0
2 years ago
A strand of DNA is a polymer of _________ , joined by covalent bonds between the__________ of one monomer and the_________ of th
Liula [17]

Answer:

"nucleic acids", "deoxyribose sugar, and the "phosphate"

6 0
3 years ago
9. If the diploid number in a liver cell of an organism is 52
exis [7]

Answer: If there are 52 chromosomes then 51 chromosomes are autosomal and 1 pair will be sex related.

It is valid in diploid condition.

Explanation:

7 0
3 years ago
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