S3.4 Practice

Front

What are prokaryotes?

Back

Prokaryotes are single-celled organisms that lack a nucleus and membrane-bound organelles. Examples include bacteria.

Front

What do both Eukaryotic and Prokaryotic cells have in common?

Back

Both Eukaryotic and Prokaryotic cells have ribosomes, which are essential for protein synthesis.

Front

What is the function of the eyepiece in a microscope?

Back

The eyepiece, or ocular lens, is the part of the microscope that you look through to see the magnified image of the specimen.

Front

What is the Endoplasmic Reticulum?

Back

The Endoplasmic Reticulum (ER) is an organelle that serves as an internal transport system within the cell. It can be rough (with ribosomes) or smooth (without ribosomes).

Front

What is a selectively permeable membrane?

Back

A selectively permeable membrane allows certain substances to pass through while blocking others, regulating the movement of materials in and out of the cell.

Front

What is the role of ribosomes in a cell?

Back

Ribosomes are the cellular structures responsible for synthesizing proteins by translating messenger RNA (mRNA).

Front

What distinguishes Eukaryotic cells from Prokaryotic cells?

Back

Eukaryotic cells have a nucleus and membrane-bound organelles, while Prokaryotic cells do not.

Front

What is the function of the nucleus in a cell?

Back

The nucleus is the organelle that contains the cell's genetic material (DNA) and controls cellular activities.

Front

What is the difference between rough and smooth Endoplasmic Reticulum?

Back

Rough ER has ribosomes on its surface and is involved in protein synthesis, while smooth ER lacks ribosomes and is involved in lipid synthesis and detoxification.

Front

What is the function of mitochondria?

Back

Mitochondria are known as the powerhouse of the cell, as they generate ATP through cellular respiration.