Bacteria_Lesson 13.1

Question 1

define bacteria

Answer 1

unicellular prokaryotes

Question 2

does bacteria have a membrane-bound nucleus

Answer 2

no

Question 3

Complete the statement:

______ can live nearly anywhere.

Answer 3

bacteria

Question 4

_____ can live in the surrounding air, glaciers, the ocean floor, soil, living organisms, and dead organisms are all

Answer 4

bacteria

Question 5

a teaspoon of soil can contain between…

Answer 5

100 million and 1 billion bacteria

Question 6

your body contains more _____ cells than human cells

Answer 6

bacterial

Question 7

the bacteria in your body outnumber human cells by ___ to 1

Answer 7

1.3

Question 8

bacteria comes from the Greek word bakterion which means…

Answer 8

small staff

Question 9

a typical bacterium consists of a…

Answer 9

cytoplasm and DNA surround by a cell membrane and a cell wall

Question 10

most bacteria have DNA which is one coiled,…

Answer 10

circular chromosome

Question 11

ribosomes are contained inside the bacteria’s

Answer 11

cytoplasm

Question 12

define plasmid

Answer 12

a genetic structure in a cell that can replicate independently of the chromosomes

Question 13

many bacteria have one or more small circular pieces of DNA called a…

Answer 13

plasmid

Question 14

some bacteria have _______ structures that help them survive

Answer 14

specialized

Question 15

the bacteria that causes pneumonia, an inflammation of the lungs, has a thick covering or capsule around its cell wall. How could the capsule help the bacterium survive?

Answer 15

it could protect the bacteria from drying out from acids inside the body