Asexual Reproduction and Its Types: Fission

Q. In ____ parent cell divides to form two identical daughter cells.

1. regeneration
2. budding
3. multiple fission
4. binary fission

Q. Which of the following statements is true regarding reproduction in phaeophyceae?

1. Vegetative reproduction takes place by fragmentation.
2. Asexual reproduction in most brown algae is by non-flagellated zoospores.
3. Zoospores are pear-shaped and have two unequal laterally attached flagella.
4. Sexual reproduction may be isogamous, anisogamous or oogamous.

Q.

How are the modes for reproduction different in unicellular and multicellular organisms?

Q.

During fission when amoeba use to divide so every time why its division is called the daughter cell ? Why not son.

Q.

Does cell division occur in multiple fission?

Q.

Which type of reproduction is found in Volvox?

Q. Match the following organisms with the type of asexual reproduction.
$\begin{array}{cc}\text{Organism}& \text{Asexual Reproduction}\\ i.\text{Amoeba}& A.\text{Regeneration}\\ ii.\text{Plasmodium}& B.\text{Binary fission}\\ iii.\text{Planeria}& C.\text{Multiple fission}\end{array}$

1. i-A, ii-C, iii-B
2. i-B, ii-C, iii-A
3. i-C, ii-B, iii-A
4. i-B, ii-A, iii-C

Q.

Spirogyra Reproduces by Budding

1. True
2. False

Q. takes place within a cyst.

1. Multiple fission
2. Binary fission
3. Budding

Q. Define asexual reproduction.

Q.

Define the following with example: (a) Budding (b) Binary fission
[3 MARKS]

Q.

Write a note on reproduction in plants.

Q. Define binary fission.

Q. A bacterial cell undergoes binary fission every twenty minutes. Starting with a single bacterium how may bacteria will be formed at the end of 3 hours?

1. 128
2. 256
3. 512
4. 1024

Q. Assertion :Amoeba shows multiple fission during unfavourable conditions. Reason: Chances of survival are less during unfavourable conditions.

1. Both Assertion and Reason are correct and Reason is the correct explanation of Assertion.
2. Both Assertion and Reason are correct, but Reason is not the correct explanation of Assertion.
3. Assertion is correct but Reason is incorrect.
4. Assertion is incorrect but Reason is correct.

Q. If a bacterial cell divides once every minute and takes 60 minutes to fill a cup, how much time it will take to fill half the cup?

1. 32 min
2. 59 min
3. 29 min
4. 30 min

Q.

The offsprings formed by asexual reproduction method have greater similarity among themselves because:

(i) asexual reproduction involves only one parent

(ii) asexual reproduction involves two parents

(iii) asexual reproduction involves gametes

(iv) asexual reproduction does not involve gametes

1. 
   (i) and (iv)
2. 
   (ii) and (iv)
3. 
   (i) and (ii)
4. 
   (i) and (iii)

Q.

Which among the following structures undergoes the first change during binary fission?

1. Cell membrane

2. Cytoplasm

3. Nucleus

4. Nuclear membrane

Q.

What is meant by the term cell division , and why is it necessary ?

Q. In a bacterium 'X' binary fission occurs at every 30 minutes. If its bacterial culture containing 10${}^{15}$ cells per ml is grown for 90 minutes, then what will be the total cell concentration per ml after 90 minutes?

1. $8\times {10}^{15}$ cell
2. $32\times {10}^{15}$ cell
3. $16\times {10}^{15}$ cell
4. $4\times {10}^{15}$ cell

Q.

The asexual mode of reproduction in an organism where it splits into two daughter cells is called ________.

Q. Define:-
Binary fission in Leishmania.

Q.

Arrange the organisms in ascending order based on the number of offsprings produced after asexual reproduction?

1) Euglena 2) Plasmodium 3) Hydra 4) Chlamydomonas

1. 1-2-3-4

2. 4-2-3-1

3. 3-1-4-2

4. 4-3-2-1

Q. If a population of 50 paramoecia present in a pool increases to 150 after an hour. What would be the percent growth or birth rate per individual per hour for this population?

1. 200
2. 100
3. 150
4. 50

Q. What is multiple fission? How does it occur in an organism? Explain briefly. Name one organism which exhibits this type of reproduction.

Q. With the help of suitable diagrams describe binary fission.

Q. Unicellular cyanobacteria reproduce asexually by ________.

1. Conjugation
2. Fragmentation
3. Binary fission
4. Hormogones

Q. cells are formed at the end of binary fission.

1. >10
2. 3
3. 2
4. 4

Q.

Malarial parasite reproduces by___

Q. In multiple fission many cells are produced from one cell.

1. True
2. False