Median for ungrouped data:

Median = [(n+1)/2]th observation, if n is odd.

Median = mean of (n/2)th observation and [(n/2)+1]th observation, if n is even.

TLS Online TPP Program

#Id: 536

#Unit 2. Cellular Organization

Surface area/volume ratio of bacteria is high compared to the same ratio for larger organisms of similar shape.

TLS Online TPP Program

#Id: 537

#Unit 2. Cellular Organization

The shape of a bacterium is governed by its rigid cell wall.

TLS Online TPP Program

#Id: 538

#Unit 2. Cellular Organization

Some bacterial species are pleomorphic. Example: genera Arthrobacter, Corynebacterium, Mycobacterium, Mycoplasma, etc.

TLS Online TPP Program

#Id: 539

#Unit 2. Cellular Organization

Helical bacteria with: 

1. Less than one turn- vibrioid shape

2. Complete turn- helical shape

TLS Online TPP Program

#Id: 540

#Unit 2. Cellular Organization

Protein filaments in cytoplasm are responsible for the rod and helical cell shapes of bacteria.

TLS Online TPP Program

#Id: 541

#Unit 2. Cellular Organization

Flagella may be:

1. Peritrichous

2. Monotrichous 

3. Lophotrichous

4. Amphitrichous