Question

Name and Title:

Include your name, instructor's name, date, and name of lab.


Objective(s):

In your own words, what was the purpose of the lab?


Procedure:

Investigate each of the three components of cell theory to investigate from the corkboard in the virtual lab:
All organisms are composed of cells.
Cells come from existing cells.
Cells are the basic unit of life.
For each section, record your observations below.
Complete your report and submit it for grading.


Data and Observations:

Investigation: All organisms are composed of cells.

What is the main function of each part of the compound microscope?

Part

Function

Eye piece



Ocular lens



Objective lenses



Slide



Cover slip



Stage



Focusing dials



Light



Condenser lens





Observe each specimen under the microscope, and record a description about its appearance.

Specimen Type

Description

Plant cell



Animal cell



Bacteria cell





Investigation: Cells come from existing cells.

Observe the two flasks, and record information about their appearance.

Day

Flask with open (broken) neck

Flask with intact neck

1





2





3





4





5







Investigation: Cells are the basic unit of life.

Observe the two petri dishes, and record information about their appearance.

Day

Petri dish (on left) containing agar plus nutrients

Petri dish (on right) containing agar without nutrients

1





2





3





4





5








Conclusion:

Use your data to answer the following questions. Use complete sentences, and be as detailed as possible.

How did scientists discover that all living things are made of cells?
How did Pasteur’s experiment with the flasks help disprove the idea that living things could just appear or come from nonliving things like water and air?
Why are nutrients needed for living things? Describe the difference between living and nonliving things.



pls answer asap

Answer 1

Step-by-step explanation:

Scientists discovered that all living things are made of cells by using microscopes to observe the structure of plants and animals. Pasteur's experiment with the flasks showed that when the flask had an intact neck, no living organisms appeared in the flask, but when the neck was broken, living organisms appeared. This demonstrated that living organisms cannot come from nonliving things. Nutrients are needed for living things as they provide energy and building blocks for cells to grow and reproduce. Nonliving things, such as rocks or water, do not need nutrients to survive. Living things contain cells, which are capable of reproduction, growth, and metabolism, whereas nonliving things do not possess these characteristics