Biology Diagnostic Test on Plant Cells

Questions and Answers

What makes plant cells different from animal cells?

Plant cells undergo the process of cell division

Plant cells have cell wall (correct)

Plant cells have cell membrane

Plant cells contain different organelles responsible for cellular activities

What can you conclude about a specimen with a cell wall and various organelles?

It belongs to a bacterial cell

It's hard to tell, unless other cell parts are also mentioned

It is an animal cell

The characteristics belong to a plant cell (correct)

Which statement about the nucleus is the exception?

It contains the genetic material

It is a dense body inside the cell that holds the DNA for inheritance

It is the control center of the cytoplasm (correct)

It controls all metabolic and cellular activities

Which organelle is unique within an autotrophic, eukaryotic cell?

Chloroplast Signup and view all the answers

Based on the tenets of the cell theory, which does not belong to the group?

Viruses Signup and view all the answers

Explain the postulates of the cell theory.

The cell theory states that all living things are composed of cells, cells are the basic unit of life, and all cells arise from pre-existing cells. Signup and view all the answers

Describe the structure and function of major and subcellular organelles.

Major organelles include the nucleus (controls cell activities), mitochondria (powerhouse for energy), and ribosomes (protein synthesis). Subcellular organelles perform specific tasks within cells. Signup and view all the answers

Trace the historical development of the cell leading to cell theory.

The cell theory developed from the discoveries of early scientists like Schleiden and Schwann, who proposed that all living things are made up of cells and that cell division is responsible for the growth of organisms. Signup and view all the answers

Determine the structure and function of the cell.

Cells are constructed with a cell membrane, cytoplasm, and organelles. Their functions include metabolism, growth, and reproduction. Signup and view all the answers

What does the term 'bio' mean in Greek?

Life Signup and view all the answers

What is the branch of natural science dealing with the study of life?

Biology Signup and view all the answers

Viruses are classified as living organisms.

False Signup and view all the answers

What is not a characteristic of life?

Static structure Signup and view all the answers

Study Notes

Plant and Animal Cells

Plant cells have a rigid cell wall, while animal cells do not.
Both types of cells have cell membranes, undergo cell division, and contain various organelles.
The presence of a cell wall and specific organelles indicates a plant cell from observed characteristics.

Nucleus

The nucleus contains genetic material (DNA) and acts as the control center for cellular activities.
It regulates metabolic functions and cellular processes.
An incorrect statement about the nucleus is that it controls the cytoplasm, which is not accurate.

Unique Organelles

Chloroplasts are unique to autotrophic eukaryotic cells, enabling photosynthesis.
Other organelles such as chromatin, cytoplasm, and cell membranes are not exclusive to this cell type.

Cell Theory

All living organisms (animals, plants, bacteria) are composed of cells.
Viruses are not classified within this group as they do not fulfill the criteria of living organisms.

History and Study of Cells

Cell theory is rooted in the historical development of understanding cells as basic life units.
Major organelles include the nucleus, mitochondria, and chloroplasts, each serving specific functions for cell activities.

Characteristics of Life

Seven essential traits describe living organisms: organization, reproduction, response to stimuli, homeostasis, growth and development, adaptation, and metabolism.
Organization is foundational, beginning at the cellular level.
Reproduction can occur via sexual or asexual means, such as mitosis.
Sensitivity allows organisms to react to environmental stimuli.
Homeostasis refers to maintaining internal balance despite external changes, exemplified by physiological responses like sweating.

Nature of Viruses

Viruses exist in a "gray area" between living and non-living as they do not exhibit independent replication or self-maintenance.
They play a crucial role in biological processes and evolution despite not being classified as living organisms.

Types of Cells

Distinction between prokaryotic cells (single-celled) and eukaryotic cells (can be unicellular or multicellular).
Unicellular organisms consist of a single cell, whereas multicellular organisms contain numerous specialized cells.

Branch of Biological Sciences

Biology, derived from Greek words for “life” and “study,” encompasses various disciplines including botany, microbiology, and genetics.
Each branch focuses on specific aspects of living organisms and their interactions within ecosystems.

Description

This diagnostic test evaluates your understanding of the differences between plant and animal cells. Questions focus on key features such as cell walls, organelles, and cellular processes. Test your knowledge and see how well you can distinguish between the two types of cells.