Question

molecule which moves down its concentration gradient and across a pore in a cel membrane without energy being expended by the cell is experiencing 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 14. A typical bacterial cell has a salt concentration of about 1% If the cell is placed in a solution containing 10% salt, the net flow of water will be 15. True or false? The cyanobacteria survive without a cell wall. 16. Rickettsiae are generally transmitted by 17. Hyperthermophiles need 18. Methanogens are killed by 19. Extreme halophiles live in environments that have high levels of 20. A thin, loosely bound glycocalyx is referred to as a to grow 21. The difference between the capsule and the slime layer is 22. Movement of molecules across a membrane with the help of membrane proteins is 23. Some aquatic and marine prokaryotes have an ability to float on the surface due to 24. True or false? Prokaryotic cells have a variety of cell membrane transport proteins that regulate flow into and out of the cel 25. The biggest chemical component of gram-positive bacterial cell walls, composing the greatest thickness of the wall, is teichoic acid. 26. An encapsulated bacterium is often highly pathogenic. 27. True or false? The glycocalyx is a mass of polysaccharide that can attach the bacterium to a surface. 28. True or false? The cell wall lends rigidity to the cell, but the cell membrane functions

need help on these questions please

Answer 1

12 - diffusion

13- hypotonic solution

14- water moves from inside to outside the cell

15- false

16- ectoparasites such as fleas ,ticks ,lice and mites

17- high temperatures

18- oxygen

19- salt

20- slime

21- slime layer - unorganized , loose, thin glycocalyx

Capsule - organized , tightly packed , thick glycocalyx

22- facilitated diffusion

23- presence of gas vesicles that makes them lighter

24- true

25- false

26- true

27- true

28 - question in image is not complete

PLEASE GIVE FEEDBACK!!!!!