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iren2701 [21]
2 years ago
5

Draw a neat and labelled diagram of a plant cell based on the diagram above in (i) give a suitable term for each the following d

escription
1 the site of protein synthesis.
2 A cell organelle that is absent in a plant cell. ​
Biology
1 answer:
Lilit [14]2 years ago
8 0
  1. The site of protein synthesis in plants is the <u>ribosomes</u>.
  2. The cell organelle absent in a plant cell is <u>centrosomes</u>

Explanation:

The nitrates absorbed by the plant roots are converted into various types of amino acids (about 20 types) which sequences respectively to form polypeptide chains of various protein molecules in the ribosomes. The ribosomes are either free floating in the cell cytoplasm or attached to the endoplasmic reticulum.

Centrosomes present in animal cells involves in spindle and microtubule formation during mitotic cell division; however, in plant cells, centrioles or centrosomes are absent, but still microtubule formation takes place through mitotic phases of cell division.

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What is the most in danger from the effects of overfishing?
Dennis_Churaev [7]

Answer:

What is the most in danger from the effects of overfishing?

Animals that are normally eaten by fish.

Explanation:

There will be distruption of the food chain as the feeding pattern of those that feeds on fish changes as a result of scarcity of fish in the ocean due to overfishing which poses a danger

8 0
2 years ago
The energy released by the hydrolysis of ATP is:
Natalka [10]

<em>The </em><em>energy </em><em>released</em><em> by</em><em> the</em><em> </em><em>hydrolysis</em><em> </em><em>of </em><em>ATP </em><em>is </em> <em><u>7.3 kcal/mol of </u></em><em><u>energy.</u></em>

4 0
2 years ago
What does the continued presence of vestigial structures like the whale pelvis and femur shown in Figure 16–1 suggest about the
Karolina [17]
The continued presence of vestigial structures suggests that these structures do not have a great impact on fitness, like in the whale, because even with these structures, the whale has been able to survive and reproduce.
4 0
2 years ago
Sickle Cell anemia is a disease caused by a recessive allele. What is the chance a child will have Sickle Cell if one parent has
zlopas [31]

If one parent has been affected by sickle cell anemia, while the other parent does not and is homozygous, the chances that a child will have this disorder is 0%. Thus, the correct option is C.

<h3>What is Sickle Cell anemia?</h3>

Sickle Cell anemia may be defined as a genetic disorder that is caused by a recessive allele. It is an inherited disease in which the red blood cells have an irregular crescent shape, obstruct small blood vessels, etc.

This disease is inherited when both genes of each parent are supposed to be defective or carriers. While in this case, only parents are affected by the disorder while the other is homozygous for the normal allele.

In this condition, all the offspring produced by both parents remain as carriers but not affected ones.

Thus, the correct option is C.

To learn more about Sickle cell anemia, refer to the link:

brainly.com/question/17063471

#SPJ1

7 0
2 years ago
The primitive atmosphere of earth may have favored the abiotic synthesis of organic molecules because it:
kozerog [31]

The synthesis of the organic molecules in the primitive atmosphere would have favored because it was reducing and exhibited sources of energy in the form of UV radiation and lightning.  

The biggest constituent of the primitive atmosphere was carbon dioxide, succeeded by hydrogen and nitrogen with almost nil oxygen. This atmosphere resulted mainly from the gases discharged due to cooling of the molten plant and at the time of volcanic eruptions.  


6 0
3 years ago
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