Bio101-intro

Quiz Type

Practice

Subject

Biology

Level

Level 100

Questions

10 questions

Created By

Rebecca Agyapomaa Forkuoh

Quick Rules

Time limit: 10 minutes
Multiple attempts are not allowed
All questions must be answered to submit

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Question 1 of 10

Question 1

True false Understanding

All living organisms are composed of cells.

True

Correct

False

Explanation

This statement is true because the cell theory states that all living things are made up of cells, which are the basic unit of life. This principle is foundational in biology.

Question 2

True false Understanding

Photosynthesis occurs in the mitochondria of plant cells.

True

False

Correct

Explanation

This statement is false because photosynthesis occurs in the chloroplasts of plant cells, not in the mitochondria. Mitochondria are involved in cellular respiration, which is a different process.

Question 3

True false Understanding

DNA is the molecule that carries genetic information in all living organisms.

True

Correct

False

Explanation

This statement is true because DNA (deoxyribonucleic acid) is responsible for storing and transmitting genetic information in all living organisms, serving as the blueprint for development and functioning.

Question 4

Assertion reason Analyzing

Assertion (A): In biological systems, energy transfer is essential for maintaining homeostasis. Reason (R): Homeostasis refers to the ability of an organism to maintain stable internal conditions despite external changes.

Both A and R are true, and R is the correct explanation of A

Correct

Both A and R are true, but R is NOT the explanation of A

A is true but R is false

A is false but R is true

Explanation

Energy transfer is fundamental to all living organisms as it supports various physiological processes needed for maintaining homeostasis, which is the balance of internal conditions. Therefore, the reason given accurately explains the assertion.

Question 5

Basic multiple choice Remembering

What is the basic unit of life?

Cell

Correct

Tissue

Organ

Organism

Explanation

The cell is the fundamental unit of life, serving as the building block for all living organisms. Tissues are made up of groups of cells, organs are structures composed of tissues, and organisms are complete living entities made up of multiple systems.

Question 6

Basic multiple choice Understanding

Which process do plants use to convert sunlight into energy?

Photosynthesis

Correct

Respiration

Fermentation

Transpiration

Explanation

Photosynthesis is the process by which plants capture sunlight to convert carbon dioxide and water into glucose and oxygen. Respiration is the process of breaking down glucose for energy, fermentation is an anaerobic process for energy production, and transpiration is the process of water movement through a plant.

Question 7

Basic multiple choice Remembering

What type of macromolecule are enzymes?

Proteins

Correct

Carbohydrates

Lipids

Nucleic acids

Explanation

Enzymes are biological catalysts that speed up chemical reactions and are primarily composed of proteins. Carbohydrates, lipids, and nucleic acids are other types of macromolecules with different functions.

Question 8

Basic multiple choice Understanding

Which of the following is a characteristic of living organisms?

Ability to reproduce

Correct

Ability to change color

Ability to fly

Ability to photosynthesize

Explanation

A defining characteristic of all living organisms is the ability to reproduce, ensuring the continuation of their species. While changing color, flying, or photosynthesizing may apply to specific organisms, they do not represent a characteristic shared by all living things.

Question 9

Complex multiple choice Understanding

In a laboratory experiment, a student examines the effects of varying light intensity on the rate of photosynthesis in aquatic plants. She observes that as light intensity increases, the rate of photosynthesis also increases until a certain point, beyond which there is no further increase. What phenomenon could explain this observation?

Limiting factors of photosynthesis

Correct

The saturation point of chlorophyll

The effect of temperature on enzyme activity

The role of oxygen in photosynthesis

Explanation

The correct answer is 'Limiting factors of photosynthesis' because the observation indicates that light is a factor that increases photosynthesis up to a point, after which a factor such as carbon dioxide or temperature may limit further increases. The other options are plausible distractors that misinterpret the relationship between light and photosynthesis.

Question 10

Complex multiple choice Understanding

A group of students is studying the relationship between cellular respiration and photosynthesis in different organisms. They discover that while plants perform photosynthesis during the day, they also carry out cellular respiration at all times. How does this relationship illustrate the concept of energy flow in an ecosystem?

Energy is created during photosynthesis but not during respiration

Photosynthesis stores energy, which is later released through cellular respiration

Correct

Both processes are independent and do not affect each other

Cellular respiration only occurs in animals while photosynthesis occurs only in plants

Explanation

The correct answer is 'Photosynthesis stores energy, which is later released through cellular respiration' because it demonstrates how energy is transformed and utilized in an ecosystem. The other options misrepresent the interdependence of these processes.