Tag: caskets of life

Questions Related to caskets of life

In plant and animal cells, chromatids or chromatin are made up of:

bio-chemistry caskets of life animal cells vs plant cells comparing plant and animal cells comparison between animal and plant cell

  1. Only DNA

  2. DNA,RNA and Hisone

  3. DNA, RNA, Protein and some fat bodies

  4. DNA, RNA, Histone and non histones

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Correct Option: A

The interior of a cow-dung pile kept for a few days is quite warm. This is mostly because: 

bio-chemistry caskets of life animal cells vs plant cells comparing plant and animal cells comparison between animal and plant cell

  1. Cellulose present in the dung is a good insulator.

  2. Bacterial metabolism inside the dung releases heat.

  3. Undigested material releases heat due to oxidation by air.

  4. Dung is dark and absorbs a lot of heat.

Show answer
Correct Option: B
Explanation:

At the later stages of decomposition of cowdung, mesophilic micro-organisms decompose the dung, generating heat from exothermic( process which produces heat) processes; such heat generation is associated with the well known phenomenon of the elevated temperature of composting.

How plant cells are different from animal cell?

bio-chemistry caskets of life animal cells vs plant cells comparing plant and animal cells comparison between animal and plant cell

  1. Plant cells have cell wall, animal cells do not have cell wall.

  2. Plant cells have chloroplast, animal cells not do not have chloroplast.

  3. Both A and B.

  4. None of these.

Show answer
Correct Option: C
Explanation:

  • Plant cells have a cell wall, plastids, and a large central vacuole, which are not found in animal cells. The cell wall is a rigid covering that protects the cell, provides structural support and gives shape to the cell. 
  • The chloroplasts, found in plant cells, contain a green pigment called as chlorophyll, which captures the light energy that drives the reactions of plant photosynthesis. 

Thus, the correct answer is option C.

Which of the following structures is usually present only in animal cells?

bio-chemistry caskets of life animal cells vs plant cells comparing plant and animal cells comparison between animal and plant cell

  1. Vacuoles

  2. Cell wall

  3. Nucleus

  4. Centrioles

Show answer
Correct Option: D
Explanation:

Vacuoles are storage bubbles found in animal and plant cells, but bigger in plant cells. These are used for storage of food or water. 
The cell wall is a protective outer covering of the cell. It is mostly present in plant cells. It supports the contents of the cell and protects from pathogen attack and wear and tear. It is made of cellulose, lignin. 
The nucleus of the cell contains a majority of the cell's genetic material, i.e., DNA in the form of DNA-protein complex, called as chromatin. It is present in both animal and plant cells. 
Animal cells contain centrioles, cylindrical organelles that help in cell division and absent in plant cells. Thus, the correct answer is option D.

The plant cells are more rigid than the animal cell due to

bio-chemistry caskets of life animal cells vs plant cells comparing plant and animal cells comparison between animal and plant cell

  1. Cell wall

  2. Vacuoles

  3. Plastids

  4. Both A and B

Show answer
Correct Option: D
Explanation:

The cell wall of the plant cell is very rigid, tough and thick covering. It supports the contents of the cell and is made of cellulose and lignin. 
Vacuoles are storage bubbles found mostly in plant cells. They occupy most of the portion of plant cells. These are used for storage of food or water. Osmotic pressure and turgidity is maintained by vacuoles. Whereas animal cells lack a cell wall and large sized vacuole.

Is there any difference between animal and plant vacuoles?

bio-chemistry caskets of life animal cells vs plant cells comparing plant and animal cells comparison between animal and plant cell

  1. In animal cell, small vacuoles are present, but in mature plant cell, a large central vacuole occupies the centre of the cell.

  2. In animal cell vacuoles are small, but in plant cell vacuoles are large.

  3. Both A and B.

  4. None of the above.

Show answer
Correct Option: C
Explanation:

Vacuoles are storage bubbles which are present in both, animal and plant cells. These are used for storage of food or water. Osmotic pressure and turgidity are maintained by vacuoles. Plant cell vacuoles are bigger than animal cells. It occupies most of the part of the plant cell and generally present in the center. 

Consider the following statements


A. Centrioles are present in almost all animals cells.
B. Ribosomes are the site of protein synthesis.
C. The middle lamella is the layer made up of calcium carbonate which holds the neighboring cells together.
D. In animal cells, steroidal hormones are synthesized by smooth endoplasmic reticulum.
The true statements are 

bio-chemistry caskets of life animal cells vs plant cells comparing plant and animal cells comparison between animal and plant cell

  1. B and D

  2. A and D

  3. B and C

  4. A, B and D

Show answer
Correct Option: D
Explanation:

The centrioles are the organelles present in the animal cells which are required for the formation of spindle fibres during cell division. 

The ribosomes are the cell organelles which are involved in the process of translation or the formation of the proteins from the mRNA. 
The middle lamella is made up of pectin which holds the two adjacent cells together. 
In the animal cells, the steroid and lipid hormones are synthesized in the smooth ER.
Thus, the correct answer is option D. 

Plant and animal cell divisions differ in 

bio-chemistry caskets of life animal cells vs plant cells comparing plant and animal cells comparison between animal and plant cell

  1. Cell plate

  2. Prophase

  3. Metaphase

  4. Telophase

Show answer
Correct Option: A
Explanation:

The plant and animals are the eukaryotic cells which divide by mitotic cell division. The various stages of the mitosis are prophase, metaphase, anaphase and telophase, which are same for all the eukaryotic cells. During telophase, there is the formation of the cell plate in case of plant cells which allows the separation of the two daughter cells. In the case of animal cells, there is pinching of the cell membrane to separate the cells. Thus, the correct answer is option A. 

In a plant cell, cytokinesis occurs by

bio-chemistry caskets of life animal cells vs plant cells comparing plant and animal cells comparison between animal and plant cell

  1. Separation of the cytoplasm from the periphery to central region

  2. Separation of the cytoplasm from cell centre to its periphery

  3. Separation of the cytoplasm throughout the equatorial plane simultaneously

  4. Furrowing of cytoplasm from two sides at right angles to the plane of spindle pole

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Correct Option: B

Which organelle would you expect to find in a plant cell but not an animal cell?

bio-chemistry caskets of life animal cells vs plant cells comparing plant and animal cells comparison between animal and plant cell

  1. Smooth endoplasmic reticulum

  2. Mitochondria

  3. Ribosome

  4. Chloroplast

Show answer
Correct Option: D
Explanation:

Plant cells contain Chloroplast to carry out function of photosynthesis to create food for it. Animal cells depend on other sources for food as they lack Chloroplasts.