Look at the food web shown above. Which organisms get energy from consumers?

You have been growing some animal cells in a test tube. The cells grow for several days, then do not appear to grow as well. You

svetlana [45]

Answer:

D. There is no enough oxygen in the culture fluid

Explanation:

The cells in the test tube need to carryout one of the important metabolic processes of living organisms - respiration. The process involves the breakdown of glucose to generate energy for other metabolic processes in the cell.

Respiration can be carried out in the presence of oxygen (aerobic) or in the absence of oxygen (anaerobic). Human cells are primarily aerobic but can carryout respiration anaerobically in the presence of inadequate oxygen.

For aerobic respiration, glucose is broken down in the presence of oxygen to produce carbon-dioxide, water and energy in the form of ATP:

$C_6H_1_2O_6 + 6O_2 --> 6CO_2 + 6H_2O + ATP$

In the absence of oxygen, the glucose becomes converted to lactic acid and a smaller amount of ATP is produced as compared to aerobic respiration.

Hence, lactic acid gradually builds up in the absence of oxygen due to anaerobic respiration.

The correct option is D.

6 0

3 years ago

Read 2 more answers

What is the difference between self-love and selfishness according to Aristotle?

loris [4]

Aristotle finds the good and noble man to be selfish. But from his virtue and righteous behavior emerge gifts that his friends, his homeland, and his own community benefit from. He is a committed person who looks down upon material wealth, but enjoys the benefits of honor and dignity.

7 0

3 years ago

Difference between prokaryotic and eukaryotic cells quiz

zhannawk [14.2K]

Prokaryotic cells would be plant cells
eukaryotic cells would be human/animal cells

6 0

4 years ago

Why do humans show variation?

Mars2501 [29]

Answer:

gugkugcoytci6r

Explanation:

Causes of Variation:

Causes of differences between individuals include independent assortment, the exchange of genes (crossing over and recombination) during reproduction (through meiosis) and various mutational events. There are at least three reasons why genetic variation exists between populations.

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8 0

3 years ago

the allele for hitchhiker's thumb is recessive to the dominant straight thumb. in a population of 500 students, 25% have hitchhi

Tanzania [10]

Answer: Of 125 students with hitchhiker's thumbs, 1/3rd would be homozygous dominant (41 students)

HH homozygous dominant
Hh heterozygous dominant
hH heterozygous dominant
hh homozygous recessive

8 0

2 years ago