Cell Biology Concepts and Functions

What was the ancient belief that non-living matter could create living organisms?

• Biogenesis

• Spontaneous Generation

• Abiogenesis

• Cell Theory

Which scientist first observed and named "cells" after looking at cork slices under a microscope?

• Anton van Leeuwenhoek

• Louis Pasteur

• Robert Hooke

• Rudolf Virchow

Which statement is NOT part of the Classical Cell Theory?

• All organisms are made of cells.

• The cell is the basic building block of life.

• All cells come from pre-existing cells.

• Cells spontaneously generate from non-living matter.

What is a key difference between eukaryotic and prokaryotic cells?

• Eukaryotic cells are always smaller than prokaryotic cells.

• Prokaryotic cells have a defined nucleus, while eukaryotic cells do not.

• Eukaryotic cells have a defined nucleus, while prokaryotic cells do not.

• Only prokaryotic cells contain DNA.

Which organelle in a plant cell is responsible for converting sunlight into usable energy?

• Vacuole

• Cell Wall

• Nucleus

• Chloroplast

What is the primary function of the rough endoplasmic reticulum?

• Lipid synthesis

• Protein synthesis and modification

• Energy production

• Waste removal

Which organelle is responsible for manufacturing lipids and hormones?

• Rough Endoplasmic Reticulum

• Golgi Apparatus

• Smooth Endoplasmic Reticulum

• Mitochondria

What is the main role of mitochondria in a cell?

• Packaging proteins into vesicles

• Synthesizing complex proteins

• Producing energy for cellular processes

• Manufacturing lipids

What theory explains the origin of mitochondria and chloroplasts as descendants of prokaryotic cells?

• Cell Theory

• Modern Cell Theory

• Endosymbiosis

• Genetic Drift

What factor primarily limits the maximum size a cell can reach?

• The number of nuclei

• The availability of nutrients

• The surface-area-to-volume ratio

• The complexity of proteins it produces