Chapter Exam

Chapter 1: Nutrition – Food Supplying System — Online MCQ Test

Q: Which of the following organisms is classified as an autotroph?

Answer: A. Green plants — Green plants are autotrophs because they synthesize their own food through photosynthesis using sunlight, water, and carbon dioxide.

Q: What is the primary pigment responsible for capturing light energy in photosynthesis?

Answer: B. Chlorophyll — Chlorophyll is the main photosynthetic pigment that absorbs light energy, particularly in the blue and red wavelengths of the light spectrum.

Q: Which part of the human digestive system is primarily responsible for protein digestion?

Answer: C. Stomach — The stomach secretes pepsin and hydrochloric acid (HCl) which initiate protein digestion, though it continues in the small intestine with trypsin.

BIOLOGY · CLASS 10th · Telangana State Board

Practice Chapter 1: Nutrition – Food Supplying System with a free chapter-wise online MCQ test for Telangana State Board CLASS 10th BIOLOGY. This chapter covers: This introductory chapter explores how organisms obtain and utilize nutrients for energy growth and maintenance. It contrasts autotrophic nutrition (autotrophs making their own foo.... AI-generated questions from basic to board-exam level, with instant results and explanations.

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Chapter 1: Nutrition – Food Supplying System — Important Questions & Answers (FAQ)

Frequently asked questions from Telangana State Board CLASS 10th BIOLOGY — Chapter 1: Nutrition – Food Supplying System, with answers and explanations. These are sample questions; the exam has its own separate question set.

Which of the following organisms is classified as an autotroph?

A. Green plants ✓
B. Lions
C. Fungi
D. Bacteria that feed on dead matter

Answer: A. Green plants
Green plants are autotrophs because they synthesize their own food through photosynthesis using sunlight, water, and carbon dioxide.

What is the primary pigment responsible for capturing light energy in photosynthesis?

A. Carotenoid
B. Chlorophyll ✓
C. Xanthophyll
D. Anthocyanin

Answer: B. Chlorophyll
Chlorophyll is the main photosynthetic pigment that absorbs light energy, particularly in the blue and red wavelengths of the light spectrum.

Which part of the human digestive system is primarily responsible for protein digestion?

A. Mouth
B. Esophagus
C. Stomach ✓
D. Small intestine only

Answer: C. Stomach
The stomach secretes pepsin and hydrochloric acid (HCl) which initiate protein digestion, though it continues in the small intestine with trypsin.

Compare the nutritional strategies of plants and animals. Which statement best describes a key difference?

A. Plants are heterotrophs while animals are autotrophs
B. Plants synthesize their own food using sunlight, while animals must consume organic matter ✓
C. Animals can photosynthesize if they have sufficient chlorophyll
D. Both use the same process to obtain energy from food

Answer: B. Plants synthesize their own food using sunlight, while animals must consume organic matter
Plants are autotrophs that produce their own glucose through photosynthesis, whereas animals are heterotrophs that must consume pre-made organic compounds for nutrition.

A student observes that certain bacteria can synthesize their own food but do not contain chlorophyll. Which type of nutrition do these bacteria exhibit, and what does this reveal about the classification of nutrition types?

A. Heterotrophic nutrition; this proves all autotrophs must have chlorophyll
B. Autotrophic nutrition (chemosynthesis); this shows that autotrophy includes both photosynthetic and non-photosynthetic organisms ✓
C. Saprophytic nutrition; bacteria cannot be true autotrophs
D. Parasitic nutrition; they depend on other organisms

Answer: B. Autotrophic nutrition (chemosynthesis); this shows that autotrophy includes both photosynthetic and non-photosynthetic organisms
Some bacteria use chemosynthesis to produce their own food without chlorophyll, demonstrating that autotrophy encompasses both photosynthetic and chemosynthetic organisms.

Next Chapter →

Chapter 2: Respiration – The Energy Producing System