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dusya [7]
3 years ago
10

Describe the three stages of cellular respiration and identify the part of the cell in which cach

Biology
1 answer:
RUDIKE [14]3 years ago
3 0

Answer: 3 stages- glycolysis, pyruvate oxidation, the citric acid or Krebs cycle, and oxidative phosphorylation. In glycolysis, the beginning process of all types of cellular respiration, two molecules of ATP are used to attach 2 phosphate groups to a glucose molecule, which is broken down into 2 separate 3-carbon PGAL molecules. PGAL releases electrons and hydrogen ions to the electron carrier molecule NADP+.  A carboxyl group is removed from pyruvate and released as carbon dioxide. The two-carbon molecule from the first step is oxidized, and NAD+ accepts the electrons to form NADH. The oxidized two-carbon molecule, an acetyl group, is attached to Coenzyme A to form acetyl CoA.  The citric acid cycle, where acetyl CoA is modified in the mitochondria to produce energy precursors in preparation for the next step. Oxidative phosphorylation, the process where electron transport from the energy precursors from the citric acid cycle (step 3) leads to the phosphorylation of ADP, producing ATP.  The space between the inner and outer membrane is called the intermembrane space. The space enclosed by the inner membrane is called the matrix. The second stage of cellular respiration, the Krebs cycle, takes place in the matrix. The third stage, electron transport, takes place on the inner membrane.

Explanation:

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Answer:

B ) Contain cells that connect to form pipes.

D ) Transport water and food.

Explanation:

Vascular tissue is a conducting tissue, meaning multiple cell types can be found. Their functions are to transport fluids and nutrients. To do this, they need cells that connect to form tube like pipes.

4 0
3 years ago
Describe one important piece of machinery in plant cells, and how that machinery helps keep plant cells alive. Pleas help. This
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I hope this counts - cell wall! helps keep most materials out but allows specific materials to pass through. animal cells do not have a cell wall
5 0
2 years ago
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Mom is a dominant purebred for big feet. Dad is a hybrid for foot size. What are their chances of big feet? Or little feet? _ ou
Vika [28.1K]

Answer:

Parent´s chances:

  • Mom´s chances of giving their children the big feet allele are 2 out of 2, or 100%
  • Mom´s chances of giving their children the small feet allele are 0 out of 2, or 0%
  • Dad´s chances of giving their children the big feet allele are 1 out of 2, or 50%.
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Offspring chances:

  • The offspring have 4 out of 4 or 100% of probability of having big feet. And 0 over 4 or 0% of probabilities of having short feet.

Explanation:

Due to technical problems, you will find the complete answer and explanation in the attached file

Download pdf
7 0
3 years ago
A. What is the density of a book whose mass is 1,800 g and whose volume is 300 cm3
Lera25 [3.4K]
Density = mass / volume

Plug in the values for mass and volume

Density = 1,800g / 300cm^3

Density = 6 g/cm^3
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3 years ago
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why does the complexity of gene regulation mirror the complexity of the organism in which it is found?​
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Answer:

Organisms that are more complex, such as eukaryotes, have cells that are specialized for specific functions. Gene regulation needs to be more complex to produce these specialized cells for complex organisms. Please Mark Me Brainliest

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