Plant Physiology MCQs with Answers

adminApril 6, 2024Last Updated: October 15, 2024

0 127 2 minutes read

Welcome to the Plant Physiology MCQs with Answers. In this post, we have shared Plant Physiology Online Test for different competitive exams. Find practice Plant Physiology Practice Questions with answers in Biology Tests exams here. Each question offers a chance to enhance your knowledge regarding Plant Physiology.

That is, plant physiology is part of botany which science researches how plants work and how they react toward their environment. It would be interested in the vital processes which maintain life in a plant. Indeed, it has played an important role in improving agricultural practice, crop yields, and developing sustainable farming solutions.

Some of the basic concepts of plant physiology involve photosynthesis whereby plants convert light energy to chemical energy with glucose and oxygen being produced. Respiration in the plant is also vital in providing with energy. Respiration in plants is another essential process that breaks down glucose to provide energy within the plant. Also, it plays a crucial role in cellular functions within the plant.

Other fundamental concepts include uptake of water and nutrients. Water and minerals absorbed by the roots of the plant are carried throughout the plant by vascular tissues. Regulating the state of water balance, which includes transpiration, and conserving water mechanisms ensures survival of plants, especially ones that experience drought conditions.

Besides, plant physiology can be defined as the regulation of hormones, which can be elements governing growth, development, and responses to environmental stimuli by auxins, gibberellins, and cytokinins in plants.

Knowledge of plant physiology can thus be used to develop strategies to improve crop resilience, increase productivity, and solve the challenges of climate change as well as resource management. Insights from plant physiology are vital for further research in developing plant science and agriculture in sustainability, for agronomists, botanists, and environmental scientists.

Plant Physiology Online Quiz

By presenting 3 options to choose from, Plant Physiology Quiz which cover a wide range of topics and levels of difficulty, making them adaptable to various learning objectives and preferences. You will have to read all the given answers of Plant Physiology Questions and Answers and click over the correct answer.

Test Name: Plant Physiology MCQ Quiz Practice
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. Practice each quiz test at least 3 times if you want to secure High Marks. Once you are finished, click the View Results button. If any answer looks wrong to you in Quizzes. simply click on question and comment below that question. so that we can update the answer in the quiz section.

Plant Physiology

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1 / 40

The opening and closing of stomata is regulated by _____.

Phloem

Xylem

Guard cells

2 / 40

Which of the following is NOT a function of plant roots?

Anchoring the plant

Absorbing water and nutrients

Photosynthesis

3 / 40

In respiration, glucose is broken down into _____.

Oxygen and glucose

Carbon dioxide and water

ATP and carbon dioxide

4 / 40

The process by which plants absorb nutrients from the soil is called _____.

Absorption

Transpiration

Osmosis

5 / 40

Which of the following is NOT a function of plant roots?

Anchoring the plant

Photosynthesis

Absorbing water and nutrients

6 / 40

The process by which green plants produce glucose from carbon dioxide and water using light energy is called _____.

Photosynthesis

Respiration

Transpiration

7 / 40

Which of the following is NOT a major theme in plant physiology?

Reproduction

Photosynthesis

Animal behavior

8 / 40

Which of the following is NOT a macronutrient required by plants?

Nitrogen

Phosphorus

Iron

9 / 40

Plant physiology focuses on the _____.

Genetics of plants

Classification of plants

Function of plant cells

10 / 40

Which of the following is NOT a primary pigment involved in photosynthesis?

Carotenoids

Hemoglobin

Chlorophyll

11 / 40

The process by which plants use energy from sunlight to convert carbon dioxide and water into glucose and oxygen is called _____.

Respiration

Transpiration

Photosynthesis

12 / 40

The process by which green plants produce glucose from carbon dioxide and water using light energy is called _____.

Respiration

Transpiration

Photosynthesis

13 / 40

The primary site of respiration in plant cells is the _____.

Mitochondria

Chloroplasts

Nucleus

14 / 40

The process of photosynthesis occurs primarily in the _____.

Chloroplasts

Cell membrane

Mitochondria

15 / 40

The study of how plants function is known as _____.

Plant physiology

Ecology

Botany

16 / 40

The primary site of respiration in plant cells is the _____.

Nucleus

Mitochondria

Chloroplasts

17 / 40

The opening and closing of stomata is regulated by _____.

Phloem

Guard cells

Xylem

18 / 40

The process by which excess water is lost from plant leaves through small openings called stomata is called _____.

Transpiration

Osmosis

Photosynthesis

19 / 40

The process by which plants release energy from glucose molecules to fuel cellular activities is called _____.

Photosynthesis

Transpiration

Respiration

20 / 40

Which pigment primarily absorbs light energy for photosynthesis?

Chlorophyll b

Chlorophyll a

Carotenoids

21 / 40

In photosynthesis, light energy is absorbed by _____.

Chlorophyll

Stomata

Mitochondria

22 / 40

The energy currency of the cell is _____.

Glucose

Starch

ATP

23 / 40

The process by which water is absorbed by roots and released as vapor through stomata is called _____.

Respiration

Photosynthesis

Transpiration

24 / 40

The organelle where photosynthesis occurs in plant cells is the _____.

Nucleus

Mitochondria

Chloroplasts

25 / 40

The process by which plants convert light energy into chemical energy is called _____.

Transpiration

Respiration

Photosynthesis

26 / 40

Which of the following is NOT a stage of respiration?

Glycolysis

Krebs cycle

Calvin cycle

27 / 40

The breakdown of glucose molecules to release energy in the absence of oxygen is called _____.

Fermentation

Aerobic respiration

Anaerobic respiration

28 / 40

Which of the following is NOT a function of plant roots?

Anchoring the plant

Photosynthesis

Absorbing water and nutrients

29 / 40

Which of the following is NOT a stage of respiration?

Glycolysis

Krebs cycle

Calvin cycle

30 / 40

Which of the following is NOT a factor affecting photosynthesis?

Light intensity

Atmospheric pressure

Temperature

31 / 40

The movement of sugars from leaves to other parts of the plant is called _____.

Translocation

Respiration

Photosynthesis

32 / 40

The process by which plants release energy from glucose molecules to fuel cellular activities is called _____.

Photosynthesis

Transpiration

Respiration

33 / 40

The products of photosynthesis are _____.

Carbon dioxide and water

Glucose and oxygen

ATP and NADPH

34 / 40

Transpiration primarily occurs through _____.

Phloem

Stomata

Xylem

35 / 40

The energy currency of the cell is _____.

Starch

Glucose

ATP

36 / 40

In respiration, glucose is broken down into _____.

Oxygen and glucose

Carbon dioxide and water

ATP and carbon dioxide

37 / 40

The breakdown of glucose molecules to release energy in the absence of oxygen is called _____.

Fermentation

Anaerobic respiration

Aerobic respiration

38 / 40

The process by which water is absorbed by roots and released as vapor through leaves is called _____.

Photosynthesis

Respiration

Transpiration

39 / 40

The opening and closing of stomata is regulated by _____.

Xylem

Guard cells

Phloem

40 / 40

The gas required for photosynthesis is _____.

Carbon dioxide

Nitrogen

Oxygen

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adminApril 6, 2024Last Updated: October 15, 2024

0 127 2 minutes read