Flagella

Which of the following statements is correct for bacterial flagella ? Option 1 Gram negative have 4 rings whereas Gram positive have 2 rings in their basal body Option 2 Made up of flagellin proteins in which 8 flagellin molecules surrounds a hollow cylinder Option 3 Flagella of bacteria can be stained by Leifson stain Option 4 All of these

Eukaryotic cells have a well organised nucleus and a. Both 70 S and 80 S types of ribosomes b. Flagella associatd with 9 + 2 organisation c. Shows cytoplasmic streaming d. their DNA si complexed with histones to constitute the chromatin

In the following questions , a statement of assertion (A) is followed by a statement of reason (R). A: Basal body of cilia and flagella is formed by centriole in animal cells R: Centriole shows 9 + 2 arrangement of microtubules.

I. Unicellular protists founds in fresh water II. Possess a protein rich outer layer called pellicle III. Have two flagella IV. Posses pigments identical to those in higher plants. These characteristics apply to genus

Cilia are differ from flagella :- (A) in having small size (B) in havig non coordinated movement ( C ) in taking part in attachment, feeding and sensation (D) in number of microtubules ( E ) in working like oars Choose the correct option :-

Read the following statements and choose the correct statements. A. Cilia and flagella are covered with plasma membrane. B. Centrioles form the basal body of only cilia and not flagella. C. Approximately 2 m long thread of DNA is distributed among 46 pairs of chromosomes in a single human cell. D. Movement of proteins and RNA into or out of nucleus occurs through nuclear pores.

Go through the following statements (i) IN chlorophyceae the flagella re 2 in number, unequal in size and lateral in position (ii) In phaeophyceae flagella are 2-8 in number, equal in size and apical in position (iii) Chlorella and Spirullina re rich in proteins and are used as food supplements even by space travellers. (iv) The leaves in pteridophyta are microphylls as in Selaginella or macrophylls as in ferns. Which of these are correct

How many of following features are correct w.r.t Gonyaulax ? Diatomaceous earth, anterior two unequal flagella, toxin kill fishes, chief producers in ocean, red tides, stiff cellulose plate Option 1 four Option 2 three Option 3 six Option 4 two

Read the following features for brown algae a- Presence of pigments Chlorophyll a and c. carotenoids and xanthophyll (fucoxanthin), b- Cell wall is composed of cellulose, pectin and hydrocolloids like carrageen. c- Gametes are pyriform with two laterally attached flagella d-Stored food may be in form of laminarin or mannitol d- Deepest dweller