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damaskus [11]
3 years ago
8

During intense exercise, can a muscle cell use fat as a concentrated source of chemical energy? explain.

Biology
1 answer:
PilotLPTM [1.2K]3 years ago
4 0
Yes, during intense exercise, muscles cell may use fat as a concentrated source of chemical energy. When oxygen is present, the fatty acid chains containing most of the energy of a fat are oxidized and fed into the citric acid cycle and the electron transport chain. Nonetheless, during intense exercise, oxygen is scarce in muscle cells, so ATP must be generated by glycolysis alone. 
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Use the cell theory to explain why a stuffed animal dog is not alive
notka56 [123]
The cell theory consists of the rule that all living things must contain cells. The stuffed animal (since it is nonliving) has no cells. More evidence to prove this is that the stuffed animal comes from a manufacturer not other cells.
6 0
3 years ago
Which statement correctly compares protists to prokaryotes?
4vir4ik [10]

<u>Answer:</u>

The correct answer is D

<u>Explanation:</u>

1- Most of the protists and all Prokaryotes are unicellular organisms.  

2- Prokaryotes lack a proper nucleus and other membrane-bounded organelles while protists have membrane-bounded nuclei and other organelles.

3- Protists have cytosol where most of the organelles are found.

4- Protists don't have a cell wall while prokaryotes have a cell wall that acts as an extra protection layer. The cell wall of the protists shapes their body.

8 0
3 years ago
Read 2 more answers
Inheritance patterns cannot always be explained by Mendel's models of inheritance. If a pair of homologous chromosomes fails to
soldier1979 [14.2K]

The question is incomplete as it does not have the options which are:

A) n+1; n+1; n-1; n-1

B) n+1; n-1; n; n

C) n+1; n-1; n-1; n-1

D) n+1; n+1; n; n

Answer:

Option-1

Explanation:

The laws of inheritance were concluded from the result of Mendel's experiment which is based on the fact that gametes are formed. Later research suggested that gametes are formed by the process of meiosis which takes place in two phases and recombination is a characteristic of Meiosis.

If during anaphase I of meiosis I, the alleles fails to separate that is nondisjunction takes place at anaphase I, Then the resulting daughter cells will have unequal distribution of chromosomes.

One daughter cell will receive 1 extra copy of the chromosome while another daughter cell will receive 1 less chromosome therefore ploidy level will be n+1 and n-1.

During meiosis II, 2 more daughter cells will be formed with the same ploidy level therefore in last the meiosis will result in 2 (n+1) and 2 (n-1) cell.

Thus, Option-1 is the correct answer.

4 0
4 years ago
The energy animals need for their life functions is released when their cells carry out which of the following functions
Vlad [161]

Cellular respiration

Explanation:

The energy animals need for their life functions are released when their cells carry out cellular respiration.

Cellular respiration is a metabolic process by which living organisms breaks down organic molecules using oxygen  especially glucose to produce energy and gives off carbon dioxide and water in the process.

It is the reverse of photosynthesis.

During this process, chemical energy stored in food substances are released and converted to heat energy.

The process takes place in the mitochondria of a cell.

learn more:

Respiration brainly.com/question/5895241

#learnwithBrainly

5 0
3 years ago
Photosynthesis occurs in both prokaryotes and eukaryotes. How do the locations where photosynthesis occurs differ in prokaryotes
mamaluj [8]

Answer/Explanation:

In eukaryotes, photosynthesis occurs mainly in green plants. These organisms have specialized organelles called chloroplasts that carry out photosynthesis. These contain photoreceptors that absorb photons from the sun through a pigment called chlorophyll, providing the energy to synthesise glucose from carbon dioxide and water.

In contrast, prokaryotes that carry out photosynthesis are able to do so because they have folds in the plasma membrane that permit the attachment of chlorophyll. They do not have specialized membrane-bound organelles like eukaryotes.

5 0
3 years ago
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