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klio [65]
3 years ago
13

In the Krebs Cycle, which molecule enters the cycle?

Biology
1 answer:
Anestetic [448]3 years ago
7 0

Answer:

pyruvate............

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A cell membrane is ...................which means that it allows only
Zina [86]

Answer:

semi-permeable

Explanation:

passive transport is the movement of substances along the concentration gradient and no energy is utilized in it

6 0
3 years ago
What conclusions can we draw from the lab about photosynthesis and cellular
GuDViN [60]

Answer:

Carbon dioxide and oxygen are recycled through photosynthesis and cellular

respiration forever unless something interrupts.

Explanation:

Photosynthesis and cellular respiration are two distinct and opposite metabolical processes undergone by living cells. They are opposite processes because one utilizes the products of the other as reactants.

Photosynthesis is a unique process to autotrophic organisms like plants. It is the process whereby plants synthesize their food in form of organic molecules (glucose) by combining Carbondioxide (CO2) and water (H2O) in the presence of sunlight.

The overall equation of photosynthesis is as follows:

6CO2 + 6H2O ------> C6H12O6+ 6O2

On the other hand, cellular respiration is the process whereby living cells obtain energy (ATP) by breaking down food molecules (glucose) using oxygen to produce carbondioxide (CO2) and water as products. The overall equation is:

C6H12O6 + 602 -----> 6CO2 + 6H2O

Based on the lab experiments, it can be concluded that Carbon dioxide and oxygen are recycled through photosynthesis and cellular

respiration because photosynthesis recycles/reuses the products of cellular respiration, which are C02 and H2O while cellular respiration recycles/reuses the products of photosynthesis, which are C6H12O6 and O2. This process occurs naturally in the environment and will continue to do so unless something interupts.

Option B is incorrect because light energy from the sun powers photosynthesis while option C is incorrect because photosynthesis transforms light energy to chemical energy while cellular respiration transforms chemical energy to thermal energy.

7 0
3 years ago
Small rocks that have been broken down by weathering and erosion are called.
Lilit [14]

Answer: Sediment. Hope this helps :^)

4 0
2 years ago
Many animals have developed courtship behaviors. Males will often dance, swim, or sing in a particular way to attract a female.
Levart [38]
It is a form of natural selection called sexual selection. 
5 0
3 years ago
Why is the process in which rocks change called a cycle?
Jet001 [13]

Answer:

The rock cycle

Explanation:

7 0
3 years ago
Read 2 more answers
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