FEU High School Earth and Life Science STEM Lesson 11 Quiz

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Questions and Answers

What is the ultimate source of energy for life on Earth?

Plants

Animals

Sunlight (correct)

Other organisms

How do animals obtain their energy for survival?

Through photosynthesis

By undergoing metabolic processes

By consuming other organisms (correct)

By breaking down complex molecules into simpler compounds

What is the main purpose of metabolism in living things?

To store energy in complex molecules

To release energy by breaking down complex molecules (correct)

To convert sunlight into chemical energy

To produce oxygen for respiration

How are metabolic pathways arranged in a cell?

As intersecting metabolic pathways Signup and view all the answers

Which process involves the transformation of the sun’s energy to chemical energy in plants?

Photosynthesis Signup and view all the answers

What is the role of catabolic pathways in metabolism?

'To release energy by breaking down complex molecules' Signup and view all the answers

What is the primary function of cellular respiration?

To break down organic fuels in the presence of oxygen and produce carbon dioxide and water Signup and view all the answers

What is the main purpose of anabolic pathways?

To build complex molecules using energy Signup and view all the answers

What is the essential function of catabolism?

To obtain energy from the breakdown of larger molecules into smaller ones Signup and view all the answers

What does nutrition refer to?

The activities by which living things obtain raw materials from the environment and transport them into their cells Signup and view all the answers

What do animals need from all types of food to survive?

Chemical energy to fuel life processes Signup and view all the answers

Which statement best describes the function of Vitamin A?

Supports better vision, growth and development, immune function, and reproductive health Signup and view all the answers

What is the primary function of Vitamin E?

Functions as an antioxidant, protecting cells, tissues, and organs from oxidative stress caused by free radicals Signup and view all the answers

Which type of vitamin can be synthesized in the skin upon exposure to UVB radiation from sunlight?

Vitamin D Signup and view all the answers

What is the main benefit of Vitamin K?

Helps the body to clot or coagulate blood and maintain bone health Signup and view all the answers

What are water-soluble vitamins commonly utilized by the body as?

Coenzymes Signup and view all the answers

Study Notes

Energy Sources for Life

The ultimate source of energy for life on Earth is the sun's energy.
Animals obtain energy for survival mainly through the consumption of organic materials, primarily food.

Metabolism in Living Organisms

Metabolism refers to all chemical reactions within living organisms, essential for maintaining life.
Metabolic pathways are organized chains of reactions within the cell, integrating various biochemical processes.

Photosynthesis

Photosynthesis is the process that transforms sunlight into chemical energy in plants, producing glucose and oxygen.

Catabolic Pathways

Catabolic pathways break down complex molecules into simpler ones, releasing energy that can be used by the cell.

Cellular Respiration

The primary function of cellular respiration is to convert biochemical energy from nutrients into ATP (adenosine triphosphate), powering cellular activities.

Anabolic Pathways

Anabolic pathways are responsible for synthesizing complex molecules from simpler ones, requiring energy input.

Functions of Catabolism

The essential function of catabolism is to provide energy and building blocks for cellular processes.

Nutrition

Nutrition refers to the intake and utilization of food substances necessary for survival, growth, and energy.

Nutrients from Food

Animals need macronutrients (carbohydrates, proteins, fats), micronutrients (vitamins, minerals), and water to survive.

Vitamins and Their Functions

Vitamin A plays a crucial role in vision, immune function, and skin health.
Vitamin E serves as an antioxidant, protecting cells from oxidative damage.

Synthesis of Vitamins

Vitamin D can be synthesized in the skin upon exposure to UVB radiation from sunlight.

Benefits of Vitamin K

The main benefit of Vitamin K is its essential role in blood clotting and bone metabolism.

Water-Soluble Vitamins

Water-soluble vitamins, such as B vitamins and vitamin C, are commonly utilized by the body as coenzymes in various metabolic reactions.

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Description

Test your understanding of how animals survive with this quiz covering the processes involved in various organ systems, general and unique characteristics of different organ systems, and the relationship between animal structure and function. This quiz is based on the 1st Semester S.Y. 2023 - 2024 lesson 11.