Question

please answer ASAP

1) Which of the following is not a common bacterial shape? A) spirochote B.COCCIES Cdise Dj bacillas 2) The shape of a bacterial cell is determined and maintained by the A) cell membrane B) cell wall C) capsule D) slime laver 3) Which bacterial genus normally lacks a cell wall? A) Mycobacterium B) Streptococcus C) Mycoplasma D) Bacillus 4) Cell membranes are composed primarily of A) phospholipids and sugars B) teicoic acid and proteins C) phospholipids and proteins D) sugars and proteins 5) Bacterial ribosomes A) have a sedimentation rate of 70S B) Are made up of 30S and 40S subunits C) have a sedimentation rate of 80S D) Are made up of 50S and 30S subunits 6) Endospores are typically found in the genera A) Streptococcus B) Clostridium C) Mycobacterium D) Staphylococci 7) Endospores are usually induced to form when A) temperatures rise B) certain nutrient are depleted C) radiation is detected D) water is lost from the cell 3) When the fluid within a cell has a higher concentration of dissolved substances than the fluid surrounding the cell, we say the fluid surrounding the cell is A) hypertonic B) isotonic C) osmotonic D) hypotonic The cell wall controls the movement of small molecules into and out of the cell. a) true b) false All bacteria produce capsules: a) true b) false

Answer 1

1) disc is not the common bacterial shape.

2) the shape of bacterial cell is determined and maintained by : the cell wall

3) mycoplasma normally lack cell wall

4)cell membrane is composed of phospholipid and protein.

5)bacterial ribosome is composed of 50s and 30s subunits.

6)Endospore is typically found in clostridium.

7) Endospores are usually formed when certain nutrition is depleated .

8) The fluid surrounding the cell is hypotonic because the dissolved substance in the surrounding fluid is less.

9) cell wall does not control the movement of small molecules into or out of the cell its the plasma membrane that controls the movement. This statement is wrong ( false).

10) this statement is partially true as most of the bacterial are known to have the capasule ( true)