Self Studies
Self Studies
Self Studies
Self Studies

Cell The Unit of Life Test - 41

Result Self Studies

Cell The Unit of Life Test - 41
  • Score

    -

    out of -
  • Rank

    -

    out of -
TIME Taken - -
Self Studies

SHARING IS CARING

If our Website helped you a little, then kindly spread our voice using Social Networks. Spread our word to your readers, friends, teachers, students & all those close ones who deserve to know what you know now.

Self Studies Self Studies
Weekly Quiz Competition
  • Question 1
    1 / -0
    ______ is called suicidal bag of cell.
  • Question 2
    1 / -0
    The colourless plastids are called as .......... and their main function is ..........
    Solution
    The chloroplast is a type of plastid which produces green coloured pigment. The chloroplast is involved in carrying out photosynthesis. It gives a green colour to leaves. 
    Chromoplasts are a type of plastids which are responsible for the characteristic colour of flower and fruit. They are involved in attracting insects, various vectors for pollination and for fruit dispersal.
    Leucoplasts are colourless plastids and mainly help in storage of food compounds like starch, proteins or fats. Such colourless plastids are present in underground roots, stems. Thus, the correct answer is option D.
  • Question 3
    1 / -0
    Which of the following organelle acts as digestive system within the cell?
    Solution
    Lysosomes are called as digestive organelles of the cell which are capable of engulfing of food materials and other substances. These are hydrolyzed inside the lysosomes by lytic enzymes. 
    So, the correct answer is option D.
  • Question 4
    1 / -0
    What is the function of nucleus in a cell?
    Solution
    • The nucleus is the membrane-bound important structure of the eukaryotic cell.
    • The nucleus regulates all cellular activities by controlling the enzymes required for cellular processes. 
    • It contains genetic information in the form of genes located in the chromosomes.
    • It brings about the growth of the cell by directing the synthesis of structural proteins. It also controls all the metabolic activities of the cell.
      So, the correct answer is option D.

  • Question 5
    1 / -0
    What are the functions of lysosomes?
    Solution
    Lysosome is the smallest vesicle-like organelle containing hydrolytic enzymes. The functions of lysosomes are as follows-
    (i) Extracellular digestion: Sometimes lysosomes enzymes are released outside the cell to break down extracellular material. So, they are known as digestive bags.
    (ii) Digestion of foreign material: Lysosomes also destroy any foreign material inside the cell such as bacteria.
    (iii) Cellular digestion: Lysosomes get ruptured and enzymes are released free in damaged cells, aging cells, dead cells or poorly     working cell organelles to digest them. So, they are also known as suicide bags. In these processes, they remove the cell debris.
    So, the correct answer is option C.
  • Question 6
    1 / -0
    Why are lysosomes also known as scavengers of the cells?
    Solution
    Lysosomes are single membrane bound cellular organelles. They possess many hydrolytic enzymes that destroy any foreign material inside the cell such as bacteria. It also digests poorly working cell organelles. So, they are also known as suicide bags. In these processes, they remove the cell debris. As lysosomes remove unnecessary particles and organelles from cell hence they are called as scavengers of the cells. Therefore, option A is correct.
  • Question 7
    1 / -0
    The DNA and RNA are found in
    Solution
    Deoxyribonucleic acid (DNA) encodes the genetic instructions which are used in development and functioning of all living organisms. Ribonucleic acid (RNA) is one of the types of nucleic acid. Both, DNA and RNA are found in the nucleus. DNA is involved in coding the genetic information. It is present in the nucleoplasm of the nucleus in the tightly coiled form called as chromosomes. RNA is present in the nucleolus of the nucleus and involved in protein synthesis.
    So, the correct answer is option A.
  • Question 8
    1 / -0
    What is polyribosome?
    Solution
    Protein synthesis involves two sequential processes namely, transcription and  translation. Transcription is copying of genome sequence in the form of messenger RNA (mRNA). Such mRNA is translated to amino acid sequence by ribosome. Then this amino acid sequence is modified to form a specific protein. Many ribosome read one mRNA simultaneously to form the same protein. Such mRNA with many ribosome complex is called as polyribosome. Therefore, option A is correct. 
  • Question 9
    1 / -0
    Which cell organelle helps transport substances within the cell?
  • Question 10
    1 / -0
    Which part of cell cleans the waste substances present in it?
Self Studies
User
Question Analysis

  • Correct -

  • Wrong -

  • Skipped -

My Perfomance
  • Score

    -

    out of -
  • Rank

    -

    out of -
Re-Attempt Weekly Quiz Competition
Self Studies Get latest Exam Updates
& Study Material Alerts!
No, Thanks
Self Studies
Click on Allow to receive notifications
Allow Notification
Self Studies
Self Studies Self Studies
To enable notifications follow this 2 steps:
  • First Click on Secure Icon Self Studies
  • Second click on the toggle icon
Allow Notification
Get latest Exam Updates & FREE Study Material Alerts!
Self Studies ×
Open Now