Chapter 8 - "Asexual Reproduction & Cell Division: Mitosis"

1.

Multiple Choice

3 mins

1 pt

______________ is the type of reproduction that involves 1 parent, and performs exact DNA replication? During this type of reproduction, there is no fertilization. Also, cells undergo the cell division called mitosis during this type of reproduction.

asexual reproduciton

sexual reproduction

binary fission

sporulation

2.

Multiple Choice

5 mins

1 pt

As we already know, bacteria reproduce very rapidly under certain environmental conditions. What is the method within which bacteria undergo asexual reproduction?

Budding - asexual reproduction in which a new organism develops as an outgrowth of the parent. The new organism, called the bud, is a tiny duplicate of the parent organism. In budding, the nucleus divides equally and the cytoplasm divides unequally.

Regeneration by Fragmentation - type of asexual reproduction where the organism fragments a piece of itself off. In turn, the fragment reproduces an identical creature. Examples are flatworms and starfish

Binary Fission - type of asexual reproduction where the parent organism divides equally in half reproducing identical offspring

Sporulation - cells that contain a nucleus and a small amount of cytoplasm. Spores are surrounded by tough protective coats that enable them to survive unfavorable conditions, such as extreme heat or cold, for long periods of time. When environmental conditions become favorable, each spore can develop and produce by releasing spores.

3.

Multiple Choice

5 mins

1 pt

During the late 1800's, oyster fishermen were having a problem with starfish eating most of the oyster population. As a result, the fishermen "cut apart" the starfish. Why would this be a "bad" idea?

Starfish reproduce by budding, within which the starfish grew back and wiped out most of the oyster population.

Starfish reproduce by binary fission, within which the starfish grew back and wiped out most of the oyster population

Starfish reproduce by sporulation, within which the starfish grew back and wiped out most of the oyster population

Starfish reproduce by regeneration by fragmentation, within which the starfish grew back and wiped out most of the oyster population.

4.

Multiple Choice

5 mins

1 pt

During this process of asexual reproduction, the organelle called "nucleus" divides evenly, while the organelle called "cytoplasm" divides unequally? Yeast and the hydra produce by this type of asexual reproduction?

Budding

Binary Fission

sporulation

Regenertaion

5.

Multiple Choice

5 mins

1 pt

As we already know, animal like protists (the amoeba and paramecium) reproduce by asexual reproduction. Which of the following is an example of how the amoeba and paramecium reproduce using asexual reproduction?

regeneration - amoebas and paramecium that are split in half will regenerate, and create more identical offspring

sporulation - as amoebas and paramecium die, they release pores that reproduce other protists under certain environmental conditions.

binary fission - amoebas and paramecium divide by binary fission, within which the cytoplasm and the nucleus divide equally under certain environmental conditions.

budding - amoebas and paramecium reproduce by budding, within which the cytoplasm divides unequally, and the nucleus divides equally. The amoeba or paramecium can either create a colony, or split into two different protists.

6.

Multiple Choice

3 mins

1 pt

During this type of asexual reproduction, plants produce genetically identical offshoots (clones) of themselves, which then develop into independent plants?

Binary Fission

Sporulation

Regeneration

Vegetative Propagation

7.

Multiple Choice

3 mins

1 pt

In the exploration "Bacteria Reproduction - Double Trouble", the bacterium E.coli spreads very rapidly under this temperature requirement?

10 Degrees Celsius

37 Degrees Celsius

45 Degrees Celsius

50 Degrees Celsius

8.

Multiple Choice

3 mins

1 pt

In the exploration "Bacteria Reproduction: Double Trouble", why is it important that we either freeze our food, or cook at optimum temperature extremes?

Bacteria reproduce very quickly between the temperature ranges of 4 degrees celsius and 37 degrees celsius. If we eat meat that is under this temperature, we have the potential to have food poisoning by E.coli bacteria reproduction.

Bacteria reproduce very quickly between the temperature ranges of 10 degrees celsius and 37 degrees celsius. If we eat meat that is under this temperature, we have the potential to have food poisoning by E.coli bacteria reproduction.

Bacteria reproduce very quickly between the temperature ranges of 10 degrees celsius and 45 degrees celsius. If we eat meat that is under this temperature, we have the potential to have food poisoning by E.coli poisoning.

Bacteria only reproduce under the temperatures of 4 degrees celsius , and 50 degrees celsius, within which the bacteria has potential to infect our food sources.

9.

Multiple Choice

5 mins

1 pt

Which of the following asexual reproduction processes includes strawberries, within which strawberries reproduce when the parent organism sends out tendrils which can take root and grow into new organisms.

Tuber

Bulb

Runner

Binary Fission

10.

Multiple Choice

5 mins

1 pt

Tubers reproduce by asexual reproduction by sprouting off a new organisms from the original tuber's eye. Which of the following organisms reproduces in this fashion?

Strawberries

Potatoes

Onions

Hydra

11.

Multiple Choice

2 mins

1 pt

As we already know, onions reproduce asexually. How does an onion reproduce asexually?

The parent onion sends out tendrils which can take root and grow into new organisms. This type of asexual reproduction can be called a runner.

The onion has eyes, within which the eyes of an onion create a new organism by sprouting out from the original tuber.

The parent onion is a bulb, within which the onion parent bulbs create lateral buds or shoots, which can grow into new bulbs and grow into separate organisms.

Onions reproduce by splitting them in half, and planting them into the soil. This is an asexual process known as fragmentation by regeneration.

12.

Multiple Choice

5 mins

1 pt

Which of the following is/are advantages of asexual reproduction?

It allows the organisms to crowd out the other organisms that reproduce more slowly. As we have seen, bacteria can reproduce very rapidly in a short time!

Asexual reproduction allows the organism to better fight off diseases, unlike organisms that reproduce sexually. Asexual reproduction allows for greater diversity, in turn, asexual reproducers have a greater life expectancy.

Most asexual reproductive organisms live in ideal conditions, which allows them to reproduce rapidly.

both b and c are correct

13.

Multiple Choice

5 mins

1 pt

Which of the following is/are disadvantages of asexual reproduction?

It allows the organisms to crowd out the other organisms that reproduce more slowly. As we have seen, bacteria can reproduce very rapidly in a short time!

Most organisms that reproduce by asexual reproduction do not live in ideal conditions. Most of the reproduction is kept in check by limited resources, predators, and their own waste.

Organisms that tend to reproduce by asexual reproduction are not able to fend off diseases, unlike organisms that are able to reproduce sexually. Asexual reproduction involves 1 parent and one source of DNA, within which asexual organisms are not able to fend off diseases

Both ideas are correct, within which most organisms that reproduce by asexual reproduction do not live in ideal conditions, and diseases can be passed on by the identical parent offspring.

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