Chapter 7, 8, and some of 9

Question 1

microbial growth

Answer 1

refers to numbers not size

Question 2

two catorgories Nutrition

Answer 2

macronutrients and micronutrients

Question 3

where does a photoautotroph get its energy?

Answer 3

the sunlight

Question 4

Where does a Photoheterotroph gets its energy from?

Answer 4

sunlight

Question 5

Where does a Chemoheterotroph gets its energy from?

Answer 5

Metabolic conversion of the nutrients from other organisms

Question 6

Where does a saprobe gets its energy from

Answer 6

Metabolizing the organic matter of dead organisms

Question 7

where does a parasite gets its energy from

Answer 7

Utilizing the tissues, fluids of a live host

Question 8

where does a Chemolithoautotrophs gets its energ from?

Answer 8

Inorganic compounds (minerals)

Question 9

What is passive process?

Answer 9

Process that doesn’t require energy

Question 10

Example of passive process

Answer 10

simple diffusion, facilitated diffusion, and osmosis

Question 11

what is osmosis?

Answer 11

molecules moving in water

Question 12

What is an isotonic solution?

Answer 12

water concentration is equal within the cell and outside of the cell

Question 13

What is a hypotonic solution?

Answer 13

diffusion inside of the cell

Question 14

What is a hypertonic solution?

Answer 14

water diffuses out of the cell and shrinks the cytoplasmic membrane away from the cell wall

Question 15

What are the two processes for transporting substances across the membrane?

Answer 15

passive processes, and active processes

Question 16

What are the examples of active processes?

Answer 16

group translocation, bulk transport, and carrier-mediated active transport

Question 17

pinocytosis

Answer 17

liquids, such as oil or molecules in solution enter the cell here

Question 18

What are factors that influence microbial growth?

Answer 18

temperature, pH, osmotic pressure, atmospheric, radiation and hydrosatic atmospheric pressure, and other organisms

Question 19

What are the 3 general groups of requirements for temperature?

Answer 19

psychrophile, mesophiles, and thermophile

Question 20

what are psychrophiles?

Answer 20

cold loving

Question 21

What are mesophiles?

Answer 21

moderate-temp-loving

Question 22

what are thermophile?

Answer 22

heat loving

Question 23

What are the catorgeries of gas growth

Answer 23

aerobe, facultative anaerobe, and anaerobe

Question 24

What is aerobe?

Answer 24

organism that uses oxygen during metabolism

Question 25

What is facultative anaerobe?

Answer 25

a microbe that does not require oxygen for its metabolism and is capable of growth in the absence of it.

Question 26

What is an anaerobe?

Answer 26

lacks the metabolic enzyme systems for using oxygen in respiration

Question 27

What are the requirements of pH?

Answer 27

-most bacteria grow around neutral pH
-acidophiles are acid tolerant

Question 28

requirements of radiation and hyrdostatic?

Answer 28

Atmospheric pressure

Question 29

What are organismal requirements?

Answer 29

symbiotic, and nonsymbiotic

Question 30

What are the three main symbiotics?

Answer 30

mutualism, commensalism, and parasitism

Question 31

What are the two nonsymbiotics?

Answer 31

synergism and antagonism

Question 32

What is binary fission?

Answer 32

the split into 2 cells

Question 33

What is generation time?

Answer 33

The time to divide (population doubles)