LifeSci 2A03 Test 1 Questions and Answers 100% Pass
9 views 0 purchase
Module
LifeSci 2A03
Institution
LifeSci 2A03
LifeSci 2A03 Test 1 Questions and
Answers 100% Pass
What is the primary function of the mitochondria in eukaryotic cells?
They produce ATP through cellular respiration, providing energy for various cellular
processes.
How do lysosomes contribute to cellular homeostasis?
They break dow...
LifeSci 2A03 Test 1 Questions and
Answers 100% Pass
What is the primary function of the mitochondria in eukaryotic cells?
✔✔ They produce ATP through cellular respiration, providing energy for various cellular
processes.
How do lysosomes contribute to cellular homeostasis?
✔✔ They break down and recycle cellular waste, damaged organelles, and macromolecules to
maintain cellular balance.
What role does the endoplasmic reticulum play in protein synthesis?
✔✔ The rough endoplasmic reticulum is involved in synthesizing and folding proteins, while the
smooth endoplasmic reticulum is involved in lipid synthesis and detoxification.
How does the fluid mosaic model describe the structure of cell membranes?
✔✔ It suggests that the cell membrane is a flexible, dynamic layer with proteins embedded in or
attached to a phospholipid bilayer, allowing for fluid movement.
1
,What is the significance of the Golgi apparatus in cellular function?
✔✔ It modifies, sorts, and packages proteins and lipids from the endoplasmic reticulum for
secretion or delivery to other organelles.
How do ribosomes contribute to cellular protein production?
✔✔ Ribosomes translate messenger RNA (mRNA) into polypeptide chains, which are then
folded into functional proteins.
What distinguishes prokaryotic cells from eukaryotic cells in terms of their internal organization?
✔✔ Prokaryotic cells lack a nucleus and membrane-bound organelles, whereas eukaryotic cells
have a defined nucleus and various membrane-bound organelles.
How does the cytoskeleton support cellular structure and function?
✔✔ The cytoskeleton provides structural support, helps maintain cell shape, and facilitates
intracellular transport and cell division through its network of filaments and tubules.
What role do peroxisomes play in the cell?
✔✔ Peroxisomes are involved in breaking down fatty acids and detoxifying harmful substances
through oxidative reactions.
2
, How do cell junctions contribute to tissue integrity?
✔✔ Cell junctions, such as tight junctions, desmosomes, and gap junctions, help maintain the
structural integrity of tissues and facilitate communication between adjacent cells.
How do chloroplasts function in plant cells?
✔✔ Chloroplasts convert light energy into chemical energy through photosynthesis, producing
glucose and oxygen.
What is the role of the central vacuole in plant cells?
✔✔ It stores nutrients, waste products, and helps maintain turgor pressure, which is essential for
maintaining the plant's structure.
How does passive transport differ from active transport across cell membranes?
✔✔ Passive transport does not require energy and moves molecules along the concentration
gradient, while active transport requires energy (ATP) to move molecules against the gradient.
What is the function of the nucleolus within the nucleus?
3
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 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 BrilliantScores. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for £8.15. You're not tied to anything after your purchase.
