NCERT Class VIII Science Solutions: Chapter 8-Cell Structure and Functions Part 5 (For CBSE, ICSE, IAS, NET, NRA 2022)

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Question 29:

Amoeba and Paramecium belong to which category of organisms?

Answer:

Unicellular and Eukaryotic/Protozoa

Eukaryotic/Protozoa

Question 30:

What are the functions of cell wall in plant cells?

Answer:

Cell wall protects the cell contents, gives shape to the cell.

Function of Cell Wall in Plant Cell

SHORT ANSWER QUESTIONS

Question 31:

Is the following statement correct? If it is wrong, correct the statement

Statement: “Unicellular organisms do not respire, only multicellular organisms respire”

Answer:

No, the statement is wrong.

Both unicellular and multicellular organisms respire/all organisms respire.

Question 32:

Match the terms given in column I with their functions given in column II and fill the blanks given below the table:

Match the Column I and Column II. (Q)
Column IColumn II
  1. Chloroplast
  • Carries hereditary characters
  • Cell membrane
  • Controls the activities of cells
  • Nucleus
  • Site of photosynthesis
  • Chromosome
  • Controls the movement of materials into and out of cells.

Answer:

Match the Column I and Column II. (A)
Column IColumn II
  1. Chloroplast
c Site of photosynthesis
  1. Cell membrane
d Controls the movement of materials into and out of cells.
  1. Nucleus
b Controls the activities of cells
  1. Chromosome
a Carries hereditary characters

Question 33:

Observe the following diagram given as Fig.

Result for Observe the Following Diagram

Answer the following questions.

  1. Does it represent a plant cell or an animal cell?
  2. Does it represent a prokaryotic cell or a eukaryotic cell?

Answer:

  1. It represents an animal cell
  2. It represents a eukaryotic cell

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