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3 years ago

What is a colloid solution?

Biology

1 answer:

ZanzabumX [31]3 years ago

8 0

Answer:

Colloids or colloidal solutions are mixtures in which microscopically dispersed insoluble particles of one substance are suspended in another substance. The size of the suspended particles in a colloid can range from 1 to 1000 nanometers (10-9 meters).

Hope it helps........

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A compound contains two or more ___

Tresset [83]

A compound consists of two or more elements.

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3 years ago

Which of the following is a potential explanation for an observation?

Stels [109]

Answer:

variable

Explanation:

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4 years ago

Answer Quick! 50 Points + Brainliest!

pishuonlain [190]

I think that the tectonic plates would shift towards each other. This creates what is known as a convergent boundary. If the plates moved away, then this would be known as a divergent boundary. If it is wrong, I am terribly sorry. I did this question on a quiz before, and I think I got it right. It was in 8th grade though, so... two years ago.

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4 years ago

Read 2 more answers

Introduction to Biochemistry M

a_sh-v [17]

Because cellulose is required for the stem growth as cellulose is the main constituent of the cell wall and also provides toughness to the stem.

When less sunlight is in those months the photosynthesis also lowers, resulting in the use of stored energy i.e starch. Hence the starch level decreases.

Explanation:

Cellulose is required for the growth and toughness of the stem. During spring the budding and growth is fastest in plants hence supply of cellulose increases.

The starch is the energy stored in plants. It is a polymer of glucose. When sunlight decreases in some months the rate of photosynthesis lowers down and plant starts using the stored form of energy ie. starch, required for various physiological activities and growth of the plants. This is the reason the starch level decreases in plants sometimes.

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3 years ago

Name each numbered stage in the plant cell cycle diagram:

zheka24 [161]

Answer:

1. Metaphase

2. Prophase

3. Telophase

4. Interphase

5. Interphase

6. Interphase

7. Anaphase

8. Interphase

9. Telophase

10. Metaphase

11. Interphase

12. Interphase

13. Interphase

14. Interphase

15. Prophase

16. Interphase

17. Metaphase

18. Anaphase

19. Interphase

20. Interphase

21. Prophase

22. Interphase

Explanation:

The cell cycle is divided into two main divisions. The Interphase ad the M phase or the Mitotic phase.

Throughout Interphase, the cell is not dividing yet, but it is preparing to divide. It synthesizes the nutrients it will need, and grows in preparation to become two cells. This is actually the phase the cell spends the longest time.

Mitotic phase is when the cell starts to divide. It is separated into:

Prophase:

In this phase the chromosomes are condensed and mitotic spindles start to form. These spindles are made up of microtubules that will help later on to split the chromosomes. The nuclear membrane disappears so that the chromosomes will be free to move.

Metaphase

This phase is marked by the alignment of the chromosomes in the middle of the cell. They line up and you will find the asters at the opposite ends of the cell, where the microtubules stem from, attaching themselves to the center of the chromosomes, which we call the kinetochore.

Anaphase

In this phase you will see that the chromosomes are separated by the spindle fibers and are pulled at opposite ends of the cell. The cell then becomes longer by the other spindle fibers that are not attached to a chromosome.

Telophase

This phase is the end phase. The two sets of chromosomes are then enclosed by new nuclear membranes forming two nuclei and other cellular structures just as the cells are about to separate completely. As the two new cells move further apart, in plant cells a cell plate forms, dividing the two cells. The movement of the two cells splitting apart is called cytokinesis and it happens just as mitosis is about to end.

Attached is a picture of the cell cycle of a plant cell.

4 0

3 years ago