Question

Question 21

1. Vibrios are bacteria that have.....

   	A.	Comma shape
   	B.	Rod shape
   	C.	All are correct
   	D.	Spiral shape

2.5 points

Question 22

1. Fungal hyphae in which two genetically distinct kinds of……………………occur together are said to be heterokaryotic

   	A.	Nuclei
   	B.	Chloroplast
   	C.	Parenchyma cells
   	D.	Flagella

2.5 points

Question 23

1. ............................occurs in vascular plants which have microspores and megaspores

   	A.	Algae
   	B.	Diatom
   	C.	Heterospory
   	D.	Bacteria

2.5 points

Question 24

1. The first plants clearly evolved from an organism that, if it existed today, would be classified as a multicellular…………………

   	A.	Cyanobacteria
   	B.	Bryophyte
   	C.	Green algae
   	D.	Meristematic tissue

2.5 points

Question 25

1. Chloroplasts are descended from

   	A.	Plasmid
   	B.	Fern frond
   	C.	Cyanobacteria
   	D.	Trypanosoma

2.5 points

Question 26

1. Shigella species causes

   	A.	Measles
   	B.	Pneumonia
   	C.	Bacterial descentry
   	D.	Chicken pox

2.5 points

Question 27

1. Which of the following statement is not true about protists?

   	A.	Protists have cuticle
   	B.	Photosynthetic protists are at the base of aquatic food chain
   	C.	Protozoan are the heterotropic unicellular protist
   	D.	Euglena is a photosynthetic protist

2.5 points

Question 28

1. Humankind's most prevalent diseases are caused by phylum apicomplexan which are protists consist of endoplasmic protozoan. Which of the following disease is caused by these protists?

   	A.	Head injury
   	B.	Malaria (by Plasmodium)
   	C.	Fungal infection
   	D.	Any physical trauma

2.5 points

Question 29

1. Which of the following is true regarding photosynthetic protists?

   	A.	They are called lichens
   	B.	They are called photoautotroph
   	C.	They are parasites
   	D.	They do genetic transduction

2.5 points

Question 30

1. What does Lichen mean?

   	A.	Helpful symbiotic relationship between blue/green algae (cyanobacteria)  with filamentous fungus
   	B.	It is an insect
   	C.	It is harmful for mankind
   	D.	All are correct

Answer 1

1. C. all are correct.

Vibrios are the gram negative, highly motile bacteria which are curved-rod in shape. cells are strung together in S-shape or spiral. They are facultative anaerobes. Vibrio cholera causes cholera in humans.

2. A. nuclei

    Fungi remains in heterokaryon stage where the cells contain two distinct nuclei which donot fuse after mycelia fusion.

3. C. heterospory

Heterospory is production different sized and sexes spores by the sporophytes. Microspore is small and male where as megaspore is large and female.

4. Green algae

Green algae are the first multicellular organism which exist today. They conduct photosynthesis as they have chlorophyll.

5. C. cyanobacteria

Chloroplast and mitochondria are the cell organelles which have evolved from cyanobacteria through endosymbiosis, when aerobic prokaryote was engulfed.

6. C. bacterial desentry

Shigella is a group of bacteria which causes disease called shigellosis. It spreads through contaminated water and food. The main symptom of the disease is diarrhea.