Help please!
You observe a cell under a microscope that contains the following structures: nucleus, vacuole(s), mitochondria, lysosomes, and centrioles. The cell you are looking at is most likely a(n) ______ cell
A. bacterial
B. prokaryotic
C. animal
D. plant
Answers
Answer:
Studying Cells
A cell is the smallest unit of a living thing. A living thing, whether made of one cell (like bacteria) or many cells (like a human), is called an organism. Thus, cells are the basic building blocks of all organisms. There are many types of cells, all grouped into one of two broad categories: prokaryotic and eukaryotic. For example, both animal and plant cells are classified as eukaryotic cells, whereas bacterial cells are classified as prokaryotic.
Review Questions
When viewing a specimen through a light microscope, scientists use ________ to distinguish the individual components of cells.
a beam of electrons
radioactive isotopes
special stains
high temperatures
C
The ________ is the basic unit of life.
organism
cell
tissue
organ
B
Free Response
In your everyday life, you have probably noticed that certain instruments are ideal for certain situations. For example, you would use a spoon rather than a fork to eat soup because a spoon is shaped for scooping, while soup would slip between the tines of a fork. The use of ideal instruments also applies in science. In what situation(s) would the use of a light microscope be ideal, and why?