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3 years ago

Why is DNA important to a cell?

Biology

2 answers:

Levart [38]3 years ago

4 0

DNA contains the genetics . DNA tells the cells how to function

Verizon [17]3 years ago

3 0

It contains all of the genetic material

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What living systems have distinct structures and sets of functions? Be sure to refer to class notes for

Murrr4er [49]

Answer:

Cells.

Explanation:

A cell can be defined as the structural, fundamental, biological and functional unit of life. Cells are found in all living organisms because they are the basic unit of life.

Generally, cells have the ability to independently replicate themselves. These cells can be compared to the kind of structures found in a business or factory, where you have different workers performing different functions.

In a cell, the "workers" that perform various functions or tasks for the survival of the living organism are referred to as organelles.

Factory worker = Cell organelle.

1. Chief executive officer = Nucleus.

The nucleus controls all the activities taking place in the cell and the synthesis of proteins.

2. Power house = Mitochondrion.

The mitochondria provides all the energy required in the cell by transforming energy forms.

3. Maintenance team = Lysosomes.

They are responsible for absorbing materials and breaking the materials taken in by the cells.

4. Functional managers = Chromosomes.

They give sets of instructions for the synthesis of products.

5. Assembly line workers = Ribosomes.

They are involved in the build up of proteins.

6. Assembly line = Endoplasmic Reticulum.

This is where the ribosomes perform their tasks.

7. Security and support = Cytoskeleton.

They help to maintain and support the shape of the cells.

8. Drivers or messengers = Vesicles.

They ensure proteins are properly transported to the right and exact location.

9. Packaging unit = Golgi apparatus.

Prepares the protein for export by chemically tagging them.

10. Gate man/procurement unit = Cell membrane.

It is the wall of the cell and typically controls what leaves and enters the cell.

Hence, cells are living systems that have distinct structures and sets of functions.

8 0

3 years ago

I need help... I can't do this does anyone know how to do this if so thanks!!

kati45 [8]

I know the first two for the fill in:

1. I believe it's energy

2. Diaphragm

Multiple choice:

1. I believe it's 3, trachea

2. I think it's 3, respiration

There's quite a lot of questions, but I hope this helps :)

5 0

3 years ago

In a DNA molecule, the sugar and phosphate groups are to the?

sergejj [24]

I dont remember much of biology but i do remember my teacher saying something about phosphate backbone, i know its not much help. sorry!!

6 0

3 years ago

Which type of dating does the law of superposition represent

Gelneren [198K]

The answer is relative dating.

4 0

3 years ago

Read 2 more answers

Find the mean, median, and mode of the following list of values. Round to the nearest tenth if necessary.

grin007 [14]

Answer:

D.

Mean: 24.8

Median: 26

Mode: 26

Explanation:

The mean is the average. To find the average, add up all the numbers and divide by the amount of numbers there are.

30 + 26 + 25 + 11 + 34 + 20 + 26 + 26 = 198

Now, we divide by how many numbers we started out with (8).

198 divided by 8 = 24.75, rounded would be 24.8

To find the median, you arrange the numbers from smallest to largest, and find the middle number like this:

11, 20, 25, 26, 26, 26, 30, 34

As you can see, the middle number is 26.

To find the mode, you arrange the number from smallest to largest, and find the number that appears more often.

11, 20, 25, 26, 26, 26, 30, 34

As you can see, the number 26 appears the most often.

So, we end up with:

Mean: 24.8

Median: 26

Mode: 26

3 0

2 years ago