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Flashcards in sec 1 new book Deck (25):
1

what is an organisim

any living thing

2

all living things have a

cellular organization

3

A cellular organization consists of

containing smaller chemicals, using energy, responding to their surroundings, growing and development, and reproduce

4

a cell is what

the basic unit of structure and function in an organism

5

unicellular organisms

single celled organisms

6

___ are unicellular organisms

bacteria

7

multi cellular organisms

organisms composed of many cells

8

the most abundant chemical in cells are

carbohydrates

9

__ and __ are the building blocks of cells

proteins, lipids

10

nucleic acids do what

they are the genetic material- the chemical instructions that direct the cells activities

11

What is a stimulus

A change in an organism's surroundings that causes the organism to react

12

what is a response

it is an action that reacts to the stimulus

13

what is development

it is the process of change that occurs during an organism's life to produce a more complex organism

14

what is reproduction

it is the ability to produce offspring similar to the parents

15

living things arise from living things through what

reproduction

16

what is spontaneous generation

it is the mistaken idea that living things can arise from nonliving sources

17

what is a controlled experiment

it is an experiment where a scientist carries out two tests that are identical in every respect except for one factor

18

in 1600 who disproved spontaneous generation of maggots on meat

Francesco Redi

19

in 1800 who finally disproved the idea of spontaneous generation

Louis Pasteur

20

all living things need to satisfy their basic needs for what

food, water, living space and stable internal living conditions

21

what are autorophs

they are organisms that make their own food

22

what are heterotrophs

they are organisms that cannot make their own food

23

what does water do

it breaks down food, helps organisms grow,helps organisms obtain chemicals from their surroundings , move substances within their body and reproduce

24

What is homeostasis

the maintenance of stable internal conditions

25

what does homeostasis do

it helps cells to remain functional