Tag: organisation of the organism

Quizzes (24) Questions (55)

Questions Related to organisation of the organism

Multiple choice biology organisation of the organism introduction to cell what are the living organisms made of component of the cell

Branched sclerenchyma occurring as isolated cells scattered in any tissue are called.

  1. Libriform fibers

  2. Tracheidal cells

  3. Idioblasts

  4. Stone cells
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Idioblasts are isolated, specialized plant cells that differ significantly from neighboring cells and can contain various contents or have distinct shapes, such as branched sclerenchyma cells. Libriform fibers are elongated wood fibers, and stone cells (sclereids) are typically not described as isolated branched cells in the same sense as idioblasts.

Multiple choice biology organisation of the organism introduction to cell what are the living organisms made of component of the cell

Auxospores are formed by _____________.

  1. Diatoms

  2. Dimities

  3. Deuteromycetes

  4. Decomposing bacteria
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Auxospore. In certain species of diatoms, auxospores are specialised cells that are produced at key stages in their cell cycle or life history.  Auxospores can also play a role in sexual reproduction in diatoms, and may be formed after haploid gametes fuse to form a diploid zygote.

Thus the correct option is A. 

Multiple choice biology organisation of the organism introduction to cell what are the living organisms made of component of the cell

Which of the following is codons codes for proline.

  1. CCC, CCU, CCG

  2. UCC, UGU, CCU

  3. CUG, CUU, CUA

  4. CGC, CGG, CCA
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Proline is encoded by four codons: CCU, CCC, CCA, and CCG. Option A lists three of these four codons correctly. The other options contain codons for different amino acids or incorrect combinations.

Multiple choice biology organisation of the organism introduction to cell what are the living organisms made of component of the cell

Axenic culture is best defined as 

  1. Cell cultures

  2. Cell cultures free from micro-organisms

  3. Cell cultures of insectivorous plants

  4. Cell cultures free from other micro-organisms
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Axenic culture refers to a culture that is free from any other living organisms, meaning it contains only the specific organism being studied.

Multiple choice biology organisation of the organism introduction to cell what are the living organisms made of component of the cell

Secretion, endocytosis, division and formation of intercellular junctions are functions of cells due to

  1. Flip-flop movement of proteins

  2. Fluid nature of lipid and proteins

  3. Quassi-fluid nature of lipids

  4. Vertical movement of lipid and proteins
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The fluid mosaic model describes the plasma membrane as a fluid structure where lipids and proteins can move laterally, facilitating processes like secretion, endocytosis, and cell division.

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.