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Batrachospermum :Origin ,strucutre ,Thallus organisation and reproduction

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                                              Batrachospermum Occurrence:-   (1) Batrachospermum is fresh water alga.    (2) It is found in clear, cool, and running streams.   (3) Deepwater plants are dark violet or reddish in color. But the shallow-water species are olive green.   (4) The intensity of light changes the color of pigments.   (5) The thallus is attached to the substratum. Vegetative structure  (1) The thallus of an adult plant is soft, thick, filamentous.  (2) It is freely branched and gelatinous.   (3) The central axis is made up of a single row of large cells. Whorls of branches of limited growth        are developed on this axis.  (4) These branches are filamentous and dichotomously arranged.  (5) The main axis is corticated. It consists of a row of elongated cylindrical cells.   (6) It is differentiated into nodes and internodes.   (7) There are two types of branches that arise from the nodes:       Branches of limited growth        Branches of unlimited growth Batra
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Questions of cell structure and function

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Cell Structure and Function




Q.1. Which of the following not occur in mitochondria?
A. Krebs Cycle
B. glycolysis
C. ETS
D. ATP Synthesis

Ans:- B

Q.2. Which of the following is possessed by only bacteria, not by eukaryotes
A. Cell Wall
B. Cell Membrane
C. Capsule
D. Cilia

Ans:- C

Q.3. A major function of Golgi bodies or Dictyosomes is?
A. In the modification of Protein
B. In fermentation
C. In light-independent photosynthesis
D. For isolation of ETS chain

Ans:- A

Q.4. Which of the following is not surrounded by two membranes?
A. Nucleus
B. Chloroplast
C. Mitochondria
D. Complete Cell

Ans: D

Q.5. The cell wall of a plant cell contains pit fields called?
A. Mitochondria
B. Plasmodesmata
C. Cell membrane
D. Plasma Membrane

Ans: B

Q.6. Phragmoplast is formed by?
A. Mitochondria
B. Chloroplast
C. Golgi bodies
D. Endoplasmic reticulum

Ans: D

Q.7.The brain of the cell is called?
A. Chloroplast
B. Mitochondria
C. Nucleus
D. Cell membrane

Ans: C

Q.8. karyo-theca is part of?
A. Nucleus membrane
B. Chloroplast
C. Mitochondria
D. Nucleolus

Ans:- A

Q.9. Glyoxisome occur in?
A. Plant cell
B. Animal cell
C. both of these
D. Both of these

Ans: A

Q.10. Zone of exclusion is associated with?
A. Nucleus
B. Golgi bodies
C. Mitochondria
D. Plasma Membrane

Ans:- Golgi bodies



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Batrachospermum :Origin ,strucutre ,Thallus organisation and reproduction

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                                              Batrachospermum Occurrence:-   (1) Batrachospermum is fresh water alga.    (2) It is found in clear, cool, and running streams.   (3) Deepwater plants are dark violet or reddish in color. But the shallow-water species are olive green.   (4) The intensity of light changes the color of pigments.   (5) The thallus is attached to the substratum. Vegetative structure  (1) The thallus of an adult plant is soft, thick, filamentous.  (2) It is freely branched and gelatinous.   (3) The central axis is made up of a single row of large cells. Whorls of branches of limited growth        are developed on this axis.  (4) These branches are filamentous and dichotomously arranged.  (5) The main axis is corticated. It consists of a row of elongated cylindrical cells.   (6) It is differentiated into nodes and internodes.   (7) There are two types of branches that arise from the nodes:       Branches of limited growth        Branches of unlimited growth Batra
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