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Sloan [31]
3 years ago
7

Which of the following true statements best supports the endosymbiotic theory? Select one: a. All mitochondria have circular DNA

. b. All eukaryotic cells have ribosomes. c. All eukaryotic cells have DNA. d. All mitochondria function as powerhouses to the cell.
Biology
2 answers:
german3 years ago
6 0
The answer is c hope this helps
Anarel [89]3 years ago
5 0

Answer: c. All eukaryotic cells have DNA

Explanation: The endosymbotic theory deals on the mitochondria and chloroplasts to having their own DNA and this DNA maybe similar to bacterial DNA. This theory was later proven to be true for DNA, RNA, ribosomes, chlorophyll and protein synthesis.

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During photosynthesis, the energy used to pump protons comes from ___________, whereas in cellular respiration it comes from ___
Annette [7]

During photosynthesis, the energy used to pump protons comes from ______light_____, whereas in cellular respiration it comes from ______NADH/FADH₂_______.

<h3>What are the steps in photosynthesis?</h3>
  1. The first step in photosynthesis is the absorption of light by chlorophyll bound to chloroplast thylakoid proteins. The absorbed light energy is used to remove electrons from electron donors such as water to form oxygen.
  2. The electrons are then transferred to the primary electron acceptor, quinine (Q.). Electrons are further transferred from the primary electron acceptor to the final electron acceptor (usually NADP⁺).
  3. Proton transfer from the thylakoid lumen to the stroma via the F₀F₁ complex generates ATP from ADP and Pi.
  4. The NADP and ATP produced in steps 2 and 3 provide the energy, and the electrons power the process of reducing the carbon to a six-carbon sugar molecule.

The first three steps of photosynthesis, are directly dependent on light energy and are thus, called light reactions, while the reactions in the last step are independent of light and thus are termed dark reactions.

To know more about photosynthesis visit:

brainly.com/question/1388366

#SPJ4

5 0
1 year ago
How is osteoporosis different from rickets
nasty-shy [4]

Rickets is a disease of growing bones. Consequently, it usually is seen in young, weaned, growing pigs in which there is a deficiency, an imbalance, or a failure of utilization of calcium, phosphorous or vitamin D. Rickets usually is caused by a dietary deficiency of vitamin D or phosphorus. And Osteoporosis a medical condition in which the bones become brittle and fragile from loss of tissue, typically as a result of hormonal changes, or deficiency of calcium or vitamin D. More than 10 million Americans have osteoporosis, but most do not realize that they have it.

One of the big differences is one occurs mostly to pigs and the other effects adults.Another difference is one occurs while the bones are growing and the other happens after the bones are already grown. I hope this helps!!!

3 0
3 years ago
What are three methods of handling solid waste?
Elena L [17]

Explanation:

Methods of Solid Waste Disposal and Management:

Solid Waste Open Burning.

Sea dumping process.

Solid wastes sanitary landfills.

Incineration method.

Composting process.

Disposal by Ploughing into the fields.

Disposal by hog feeding.

Salvaging procedure.

3 0
3 years ago
A mixture that has the same composition throughout is called a(n)
agasfer [191]

Answer:

Homogeneous Mixture

Explanation:

They are mixed

8 0
2 years ago
Where does the energy stored in fossil fuels come from?
snow_tiger [21]

Answer:

stored solar energy in phytoplankton, zooplankton, and other organic material

Explanation:

The energy in fossil fuels comes from the sun, which drives photosynthesis to change carbon dioxide and water into the molecular building blocks of ancient plants and animals.

3 0
2 years ago
Read 2 more answers
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