Biology Chapter on Growth and Reproduction

Questions and Answers

Which statement correctly describes the process of cell division in plants and animals?

Both plants and animals divide only once or twice in their lifetime.

Animals divide continuously; plants only divide up to a certain age.

Both plants and animals divide continuously throughout their lifespan.

Plants divide continuously; animals only divide up to a certain age. (correct)

What is the term used for the sum total of all chemical reactions taking place in a cell or body?

Metabolism (correct)

Catabolism

Homeostasis

Anabolism

Which option best describes the link between growth and reproduction?

They are only linked in unicellular organisms.

They do not share any links regardless of the type of organism.

They are only linked in multicellular organisms.

They are linked in both unicellular and multicellular organisms. (correct)

Why can't reproduction be considered the sole defining characteristic of living organisms?

Reproduction occurs in certain non-living entities as well. Signup and view all the answers

Which organisms among the following reproduce by fragmentation?

Fungi and algae Signup and view all the answers

Which set of characteristics does NOT define living organisms?

All of these Signup and view all the answers

In which organisms is reproduction synonymous with growth or cell division?

Only unicellular organisms Signup and view all the answers

What is the sum total of all chemical reactions occurring in a living organism called?

Metabolism Signup and view all the answers

Which statement about prokaryotes is incorrect?

Prokaryotes have a defined nucleus. Signup and view all the answers

Molecular constituents of the organelle of a cell have features similar to which of the following?

Protoplasm of living organisms Signup and view all the answers

Study Notes

Reproduction and Growth

In most higher animals and plants, reproduction and growth occur inside the body.
Reproduction is not synonymous with growth because non-living organisms can also reproduce.
Growth includes the increase in mass and number of individuals, particularly in unicellular and multicellular organisms.

Metabolism

Metabolism is the sum total of all chemical reactions occurring in the body.
Catabolism refers to the breakdown processes, while anabolism refers to the synthesis processes.
Certain simple molecules form part of metabolic reactions.

Characteristics of Living Organisms

Defining characteristics include growth, reproduction, metabolism, and responding to stimuli.
Not all living processes result from underlying interactions, indicating complexity in biological functions.
Organisms can be categorized based on their ability to sense their environment (prokaryotes and eukaryotes).

Fragmentation and Reproduction

Fragmentation is a method of reproduction observed in certain organisms.

Taxonomy

Taxonomic studies are important in agriculture, forestry, and understanding biodiversity.
Taxonomy involves identification, nomenclature, and classification of organisms.
The scientific term for a category in taxonomy is "taxon."
Binomial nomenclature, a system for naming organisms, was developed by Linnaeus.

Growth Dynamics

Growth occurs continuously in both plants and animals, but may vary in timing and duration.
Extrinsic and intrinsic growth factors influence organisms, distinguishing between controlled and uncontrolled growth.

Key Terminology

Eukaryotes are capable of sensing and responding to environmental cues, while prokaryotes can too.
Homeostasis entails maintaining internal stability, a crucial aspect of living organisms.

Description

Explore the fundamental concepts of reproduction and growth within higher animals and plants through this quiz. Learn about chemical reactions and events in various biological processes. Test your knowledge and understanding of these essential topics in biology.