Tag: cell structure and micro-organisms

Quizzes (25) Questions (62)

Questions Related to cell structure and micro-organisms

Multiple choice biology cell structure and micro-organisms plant and animal cell cell structure organisation of the organism

Which cell organelles is absent in an animals cell?

  1. A nucleus

  2. A cell wall

  3. A large vacuole

  4. Both B and C
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The animal cells are the eukaryotic cells which are composed of well-developed cell organelles. The animal cell can be differentiated from the plant cell due to the absence of certain structures in the cell. The cell wall is absent in the animal's cells and they have only the cell membrane. The vacuole is present in the plant cell for storage and absent in the animal cells. 

Thus, the correct answer is option D. 

Multiple choice biology cell structure and micro-organisms plant and animal cell cell structure organisation of the organism

Animal cells are 

  1. Round and irregular in shape

  2. Round or rectangular in shape

  3. Regular and rectangular in shape

  4. Irregular and square in shape
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The main difference between an animal cell and a plant cell is that plant cells have a cell wall and animal cell lacks the cell wall. The cell wall which is made up of cellulose gives the plant cell rigidity resulting in a fixed, rectangular shape. Animal cells lack the rigidity hence, they tend to have a round and irregular shape. Animal cells tend to vary greatly in appearance. The cell wall allows high pressure to build inside of the plant cell without bursting. Due to this, the plant cell is able to accept large amounts of liquid through osmosis without bursting. Animal cells, which only have a thin membrane restricting access to the cell, tend to burst if they absorb too much extra water.

Multiple choice biology cell structure and micro-organisms plant and animal cell cell structure organisation of the organism

Animal cell is limited by

  1. Plasma membrane

  2. Cell membrane

  3. Basement membrane

  4. Both A and B
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The cell wall is absent in an animal cell. The plasma membrane is a biological membrane that separates the interior of animal cells from the outside environment. The basic function of the plasma membrane is to protect the cell from its surroundings. The cell membrane is also known as plasma membrane.

Multiple choice biology cell structure plant and animal cell cell structure and micro-organisms organisation of the organism

Which of the following is useful for the study of a typical animal cell?

  1. Blood cell

  2. Hair cell

  3. Skin cell

  4. Human cheek cell
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation
As in all animal cells, the cells of the human cheek do not possess a cell wall. A cell membrane that is semi-permeable surrounds the cytoplasm. Unlike plant cells. Human cheek cells form an excellent example for studying the animal cell as it is easy to obtain freshly for experiments as well as easy to handle while forming mount slide.
Multiple choice biology cell structure and micro-organisms plant and animal cell cell structure organisation of the organism

Which of the following is absent in an animal cell?

  1. Cytoplasm

  2. Nucleus

  3. Cell membrane

  4. Cell wall
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The plants and the animal cells are the eukaryotic cells which are composed of well-developed cell organelles. The animal cell can be differentiated from the plant cell due to the absence of certain structures in the cell. The cell wall is absent in the animal's cells and they have only the cell membrane. 

Thus, the correct answer is option D. 

Multiple choice biology cell structure and micro-organisms plant and animal cell cell structure organisation of the organism

Which of the following life processes does not take place in animal cells?

  1. Movement

  2. Respiration

  3. Excretion

  4. Photosynthesis
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The animal cells lack the cellular organelle chloroplast. The chloroplast or the chlorophyll pigments are required for carrying out photosynthesis by capturing solar energy. The animal cells devoid of this organelle cannot perform photosynthesis.

Thus, the correct answer is option D. 

Multiple choice biology cell structure plant and animal cell cell structure and micro-organisms organisation of the organism

Interconvertible organelle in plant cell is 

  1. Plastids

  2. Vacuole

  3. Mitochondria

  4. Lysosome
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation
Chloroplasts (Green Plastids) are plant cell organelles which take part in photosynthesis and temporary or permanent storage of starch. In green alga, chloroplasts are of various shapes and sizes but chloroplasts of higher plants are disc-shaped with a diameter of 4 to 6 micrometer and thickness of 2 to 4 micrometer. In embryophytes, they are the second largest cell organelle, smaller only to the nucleus.
Chromosomes are not distinct cell organelles.
Both Golgi apparatus and mitochondria are much smaller than chloroplasts.
So, the correct answer is 'Plastids'
Multiple choice biology cell structure plant and animal cell cell structure and micro-organisms organisation of the organism

Select the wrong statement from the following.

  1. The chloroplasts are generally much larger than mitochondria

  2. Both chloroplasts and mitochondria contain an inner and an outer membrane

  3. Both chloroplasts and mitochondria have an internal compartment, the thylakoid space bounded by the thylakoid membrane

  4. Both chloroplasts and mitochondria contain DNA
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Thylakoids and thylakoid spaces are exclusive internal compartments found inside chloroplasts, not mitochondria. Mitochondria have cristae and an intermembrane space, making statement C factually incorrect and thus the correct answer to a 'wrong statement' question.