9th Class

9th Class Biology Chapter 4 Quiz with Answers

“9th Class Biology Chapter 4 Quiz: Cells and Tissues” discusses in detail the basic units of life, including the structure, function, and organization of cells and tissues. This chapter is very important to understand the complexities of biological systems, and therefore, it is very essential for MDCAT aspirants to have a good grip on the concepts of this chapter. Our MDCAT Quiz for this chapter is specially designed to help students understand the subject in detail and prepare effectively for medical entry tests.

Cells, in many aspects, are considered the basic units of life and perform fundamental functions such as metabolism, growth, and reproduction. In this chapter, students will learn about the structural differences between prokaryotic and eukaryotic cells, their organelles, and their specific roles in maintaining life processes. The concept of tissues—specialized groups of cells working together—is also highlighted to explain their importance in multicellular organisms. From epithelial tissues to connective tissues, the chapter lays much emphasis on their importance in different physiological functions.

MDCAT Quiz: Strengthen Your Understanding

Our MDCAT Quiz for “9th Class Biology Chapter 4: Cells and Tissues” covers all major topics, including cell structure, types of tissues, and their functions. Trying these quizzes will also make you realize your weak areas and build confidence in attempting tricky questions. Each quiz is designed to mimic the difficulty level of the MDCAT, so you can be confident that you are fully prepared for the actual exam. Practice regularly to consolidate your knowledge and retain the main concepts more effectively.

  • Test Name: 9th Class Biology Chapter 4 Quiz
  • Type: Quiz Test
  • Total Questions: 40
  • Total Marks: 40
  • Time: 40 minutes

Note: Answer of the questions will change randomly each time you start the test, once you are finished, click the View Results button.

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Free Flashcards for Cells and Tissues

To make your preparation even more effective, we offer free flashcards for Chapter 4. These flashcards summarize important terms, such as organelles, cell theory, and types of tissues, in a concise and easy-to-remember format. Using flashcards is a proved method to increase the recall of memories, mostly for students in high-stakes exams like MDCAT.

How does biodiversity contribute to climate regulation?

Plants absorb carbon dioxide and release oxygen, helping regulate the climate

What is the term for the disappearance of a species from its natural habitat?

Extinction

What is the role of corridors in promoting biodiversity conservation?

Connect fragmented habitats, allowing species to move and maintain gene flow

How does biodiversity contribute to food security?

Diverse ecosystems provide a variety of food sources and genetic resources for crops

What is the term for the total variety of all living organisms on Earth?

Biological Diversity

What is the purpose of captive breeding programs in conservation?

To breed and raise endangered species in controlled environments

What is the term for the interconnected network of all the planet's ecosystems?

Biosphere

How does biodiversity contribute to cultural and recreational value?

Diverse ecosystems provide opportunities for aesthetic enjoyment and cultural practices

What is the main threat to the survival of many primates in the wild?

Habitat loss due to deforestation

What is the term for the variety of different plant and animal species in a given area?

Species Diversity

How does biodiversity contribute to the stability of ecosystems?

More diverse ecosystems are better able to withstand disturbances

What is the main goal of habitat restoration projects?

To return ecosystems to their natural state and enhance biodiversity

What is the primary factor influencing the distribution of terrestrial biomes?

Climate, particularly temperature and precipitation

How does biodiversity contribute to ecosystem resilience?

Diverse ecosystems are more adaptable to environmental changes

What is the term for the number of different species in a particular area?

Species Richness

What is the main threat to the Amazon rainforest's biodiversity?

Deforestation for agriculture and logging

What is the importance of biodiversity in medicine?

Many medicines are derived from plants and other organisms

What is the IUCN Red List?

A list of species categorized by their risk of extinction

What is the term for the gradual change in the composition of species in a given area over time?

Ecological succession

Which factor contributes to the loss of genetic diversity in a population?

Small population size

What is the role of pollinators in maintaining biodiversity?

They facilitate the reproduction of flowering plants

What is the main threat to marine biodiversity?

Overfishing and habitat destruction

What is the purpose of a gene bank or seed bank?

To conserve genetic diversity of plants for future use

What is the term for species that are found only in specific regions and nowhere else in the world?

Endemic species

What is the primary cause of the decline in amphibian populations worldwide?

Habitat loss and degradation

Which term refers to the variety of different ecosystems in a particular area?

Landscape Diversity

What is the importance of biodiversity in providing ecosystem services?

Biodiversity contributes to essential services like pollination, water purification, and climate regulation

What is the main function of a wildlife corridor?

Connect fragmented habitats to facilitate species movement

Which of the following is an example of an invasive species?

Zebra mussels in North American waterways

What is the purpose of biodiversity hotspots?

Areas with high levels of species endemism and conservation importance

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