Download App

STD 11 - 8. Cell the unit of life — NEET STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 ScienceNEETSTD 11 - 8. Cell the unit of life4 Marks
MCQ
Algae have cells made up of
  • ✓
    cellulose, galactans and mannans
  • B
    hemicellulose, pectins and proteins
  • C
    pectins, cellulose and proteins
  • D
    cellulose, hemicellulose and pectins.
✓

Answer

Correct option: A.
cellulose, galactans and mannans
a
(a) : Majority of algae (eukaryotes) possess a definite cell wall containing cellulose and other carbohydrates. In algal cell wall, different chemical components are present which vary widely among different groups ($e.g.$, xylan, mannan, galactan, alginic acid, silica, agar, pectin, carrageenin, etc.). Cell wall of blue­green algae is made up of micro­peptides (proteins). This micro­peptide is not found in eukaryotic algae.

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Explore more

NEET STD 11 Science question papers→Gujarat Board STD 11 Science question papers→Gujarat Board question paper generator→

Similar questions

The centrifugal arrangement of the xylem is called
→
Transcription
→
The best way to identify a cell as either prokaryotic or eukaryotic is to determine whether
→
Cotyledon of maize grain is called
→
The main plant body of pteridophyte is
→
The sequence of events by which a cell duplicates its genome, synthesizes the other constituents of the cell and eventually divides into two daughter cells is termed as
→
Which of the following stage of meiosis is responsible for deciding genetic constitution of gametes?
→
It is not a character of dianoflagelates.
→
Select the correct option.Direction of Direction of reading of $RNA$ synthesis the template $DNA$ strand

Direction of $RNA$ synthesis Direction of reading of the template $DNA$
$(a)$ $5'-3'$ $3'-5'$
$(b)$ $3'-5'$ $5'-3'$
$(c)$ $5'-3'$ $5'-3'$
$(d)$ $3'-5'$ $3'-5'$

 

→
Coralloid roots of Cycas are useful in
→