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kenny6666 [7]
3 years ago
5

Which of the following represents a group of protists that is difficult to classify as either protozoan or algae because some sp

ecies have chloroplasts, but others do not?
Biology
1 answer:
Strike441 [17]3 years ago
6 0

Answer:

some species have chloroplasts

Explanation:

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Adaptations of cones and rodes
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Answer:

Both cones and rods participate in dark adaptation, slowly increasing their sensitivity to light in a dim environment. Cones adapt faster, so the first few minutes of adaptation reflect cone-mediated vision.

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What foods should you eat if you want to increase your intake of complex carbohydrates? Simple carbohydrates?
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complex carbs you should eat more of whole grains

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The image shows the Great Rift Valley in Africa, an example of a rift valley.
schepotkina [342]

Answer:

The rift valley formed when the crust pulled apart.

Explanation:

The statement that best describes how the Great Rift Valley in Africa formed is that they formed when the crust pulled apart.

  • This is geologically known as divergence.
  • The Arabian plate and the Nubian/Somali plate are divergent plates.
  • They are currently moving apart and away from each other.
  • This creates a crack on the earth which is what formed the rift valley in Africa.
  • Along such margins, earthquake activities are prominent.
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Cellular respiration map
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Explanation:

Respiration in the mitochondria utilizes oxygen for the production of ATP in the Krebs’ or Citric acid cycle via the oxidization of pyruvate          (through the process of glycolysis in the cytoplasm).

overall: C6H12O6 (glucose) + 6 O2 → 6 CO2 + 6 H2O + ≈38 ATP

Further Explanation:

In all eukaryotic cells, mitochondria are small cellular organelles bound by membranes, these make most of the chemical energy required for powering the biochemical reactions within the cell. This chemical energy is stored within the molecule ATP which is produced.

Oxidative phosphorylation follows; this is a process in which the NADH and FADH2 made in previous steps of respiration process give up electrons in the electron transport chain these are converted it to their previous forms, NADH+ and FAD. Electrons continue to move down the chain the energy they release is used in pumping protons out of the matrix of the mitochondria.

This forms a gradient where there is a differential in the number of protons on either side of the membrane the protons flow or re-enter the matrix through the enzyme ATP synthase, which makes the energy storage molecules of ATP from the reduction of ADP. At the end of the electron transport, three molecules of oxygen accept electrons and protons to form molecules of water...

  • Glycolysis: occurs in the cytoplasm. 2 molecules of ATP are used to cleave glucose into 2 pyruvates, 4 ATP and 2 electron carrying NADH molecules. (2 ATP are utilized for a net ATP of 2)
  • The Citric acid or Kreb's cycle: in the mitochondrial matrix- 6 molecules of CO2 are produced by combining oxygen and the carbon within pyruvate, 2 ATP oxygen molecules, 8 NADH and 2 FADH2.
  • The electron transport chain, ETC: in the inner mitochondrial membrane, 34 ATP, electrons combine with H+ split from 10 NADH, 4 FADH2, renewing the number of electron acceptors and 3 oxygen; this forms 6 H2O, 10 NAD+, 4 FAD.

Learn more about cellular life at brainly.com/question/11259903

Learn more about cellular respiration at brainly.com/question/11203046

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Where does the primary source of energy needed for life come from?
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