Summary

Summary Cells Science Test Study Guide Cheat Sheet | Key Concepts and Definitions

6 views 0 purchase

Course
Science

Institution
9th Grade

Ace your science test on cells with this comprehensive Cells Science Test Cheat Sheet! Designed for easy review, this study guide covers essential cell biology concepts, perfect for quick learning or last-minute prep. Features: Clear Definitions: Understand the basics, from what a cell is to ...

[Show more]

Preview 2 out of 7 pages

View example

Uploaded on November 6, 2024
Number of pages 7
Written in 2023/2024
Type Summary

cells
biology
test
science
cheat sheet
cell processes
high school
middle school
cell functions
educational
nucleus
mitochondria
cell notes
grade 6
grade 7
grade 8
grade 9
grade 10
grade 1
grade 11
gra

Institution Secondary school
Education 9th Grade
Course Science
School year 1

CA$2.99

Added

Add to cart Add to wishlist

100% satisfaction guarantee
Immediately available after payment
Both online and in PDF
No strings attached

Cells Science Test - Cheat Sheet:

What’’s a cell?

A cell is typically defined as the smallest and basic unit of life, responsible for all of life’s processes. A
cell can replicate itself independently. Hence, they are known as the building blocks of life .

What kinds of cells are there?

Essentially, there are main cell types, prokaryotic cells and eukaryotic cells. Each has similarities and
differences.

Prokaryotic Cells:

● The structure of prokaryotic cells is less complex than that of eukaryotic cells.
● They are devoid of membrane-bound organelles and an actual nucleus.
● The genetic material, usually a single circular chromosome, is situated outside of a
membrane-bound nucleus in the nucleoid area.
● Prokaryotic cells are smaller in size and are present in bacteria and archaea, among other
species.
● Examples include bacteria like Escherichia coli (E. coli) and Archaea like Methanogens.

Eukaryotic Cells:

● Eukaryotic cells are more complex and larger compared to prokaryotic cells.
● They have a real nucleus that contains the DNA of the cell, which is encased in a membrane-
bound nuclear envelope.
● Organelles that are membrane-bound and found in eukaryotic cells include lysosomes,
mitochondria, endoplasmic reticulum, the Golgi apparatus, and more.
● Animals, plants, fungi, and protists are examples of eukaryotic organisms.
● Plant, animal, fungus, and different protist cells are a few types of eukaryotic cells.

What sizes are cells?

, Cells vary widely in size, but most fall within the range of 1 to 100 micrometers (µm) in diameter.
Here's a breakdown:

Microscopic Cells: Many cells are microscopic and cannot be seen without the aid of a microscope. They
typically range from 1 to 100 µm in diameter. Examples include most animal cells, plant cells, fungal
cells, and many protist cells.

Submicroscopic Cells: Some cells are even smaller and require more powerful microscopes or
specialized techniques to observe. These cells can be as small as a few hundred nanometers (0.1 µm) in
diameter. Examples include certain bacteria, viruses, and organelles within eukaryotic cells.

Macroscopic Cells: A few examples of cells are large enough to be visible to the naked eye without
magnification. These are relatively rare and often form part of multicellular structures. Examples
include the ovum (egg cell) in some animals and certain large plant cells.

What do cells look like?

Depending on their type and function, cells can have a wide range of sizes and shapes. Nonetheless,
many cells have certain shared structures and characteristics.

Cells look like tiny, spherical objects under a microscope, with a distinct boundary known as the cell
membrane or plasma membrane. The contents of the cell are contained by this membrane, which
keeps it isolated from the outside world.

Numerous organelles and structures exist inside the cell that contribute to its functions.

Major Cell Organelles:

Nucleus: Think of it as the cell's "brain" because it controls everything. It's like a command center that
holds all the important instructions (DNA) for the cell's activities.

Mitochondria: Picture them as tiny "powerhouses" because they produce energy (ATP) for the cell.
They're like little batteries that keep the cell running.

Endoplasmic Reticulum (ER):

The benefits of buying summaries with Stuvia:

Guaranteed quality through customer reviews

Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.

Quick and easy check-out

You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.

Focus on what matters

Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!

Frequently asked questions

What do I get when I buy this document?

You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.

Satisfaction guarantee: how does it work?

Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.

Who am I buying these notes from?

Stuvia is a marketplace, so you are not buying this document from us, but from seller dhairyasuri2010. Stuvia facilitates payment to the seller.

Will I be stuck with a subscription?

No, you only buy these notes for CA$2.99. You're not tied to anything after your purchase.

Can Stuvia be trusted?

4.6 stars on Google & Trustpilot (+1000 reviews)

73216 documents were sold in the last 30 days

Founded in 2010, the go-to place to buy study notes for 14 years now

Start selling