Plant Biochemistry MCQs with Answers

adminApril 3, 2024Last Updated: October 15, 2024

0 40 2 minutes read

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

This is one of those fields that are really important because they help analyze chemical compounds of plants and their actions. A science discipline, plant biochemistry is built on knowledge about the mechanisms at the molecular level of plant development, growth, as well as adaptation to stressful situations. Biochemical pathways and substances studied in plants relate how they produce essential compounds and responds to their environment.

The main area of plant biochemistry can be divided into two large categories: primary metabolites – the most important members of which are crucial carbohydrates, proteins, and lipids that take part in growth and storage; and secondary metabolites, including alkaloids, flavonoids, and terpenoids, which are reported to act as defense, signaling, and interaction molecules with other organisms. Such compounds are also of practical use in medicine, agriculture, and industry.

Enzymology also falls under plant biochemistry, and this is the study of the enzymes that catalyze biochemical reactions in plants. This knowledge in the functions and regulation of enzymes can help optimize metabolic pathways and improve crop traits. Plant biochemists also examine plant hormones with their roles in regulating processes such as seed germination, flowering, and stress responses.

This area of plant biochemistry plays a central role in the development of agricultural biotechnology and various crop varieties with a high level of resistance to environmental stresses. Therefore, their knowledge may apply to better improvement of sustainable agriculture, food security, and innovative solutions through biotechnology.

Plant Biochemistry Online Quiz

By presenting 3 options to choose from, Plant Biochemistry 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 Biochemistry Questions and Answers and click over the correct answer.

Test Name: Plant Biochemistry 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 Biochemistry

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1 / 40

The molecule that serves as the primary electron carrier in photosynthesis is ____.

ATP

NADP+

NADPH

2 / 40

The primary function of the Calvin cycle is to ____.

Produce ATP

Break down glucose

Fix carbon dioxide

3 / 40

The primary pigment responsible for photosynthesis in plants is ____.

Chlorophyll

Carotenoid

Phycobilin

4 / 40

The molecule that serves as the final electron acceptor in the light-dependent reactions is ____.

Oxygen

Carbon dioxide

NADP+

5 / 40

The enzyme responsible for the synthesis of ATP during photosynthesis is ____.

Rubisco

NADP reductase

ATP synthase

6 / 40

The breakdown of glucose in the absence of oxygen is called ____.

Photosynthesis

Respiration

Fermentation

7 / 40

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

Photosynthesis

Fermentation

Respiration

8 / 40

The primary pigment responsible for the yellow and orange colors in plants is ____.

Chlorophyll

Phycobilin

Carotenoid

9 / 40

The primary storage carbohydrate in plants is ____.

Glycogen

Starch

Cellulose

10 / 40

The molecule that serves as the final electron acceptor in the light-dependent reactions is ____.

Oxygen

NADP+

Carbon dioxide

11 / 40

The Calvin cycle occurs in the ____.

Thylakoid membrane

Mitochondria

Stroma

12 / 40

The enzyme responsible for the initial fixation of carbon dioxide in C4 plants is ____.

Rubisco

ATP synthase

PEP carboxylase

13 / 40

The process by which plants lose water vapor through their leaves is called ____.

Respiration

Transpiration

Osmosis

14 / 40

The site of the light-dependent reactions of photosynthesis is the ____.

Thylakoid membrane

Stroma

Chloroplast

15 / 40

The enzyme responsible for converting glucose-6-phosphate to fructose-6-phosphate is ____.

Phosphofructokinase

Glucose-6-phosphatase

Phosphoglucose isomerase

16 / 40

The enzyme responsible for the synthesis of ATP during photosynthesis is ____.

NADP reductase

Rubisco

ATP synthase

17 / 40

The primary pigment responsible for the yellow and orange colors in plants is ____.

Carotenoid

Chlorophyll

Phycobilin

18 / 40

The process by which plants absorb water through their roots is called ____.

Absorption

Transpiration

Osmosis

19 / 40

The enzyme responsible for breaking down sucrose into glucose and fructose is ____.

Amylase

Cellulase

Sucrase

20 / 40

The molecule that serves as the primary energy currency in cells is ____.

Glucose

ATP

NADPH

21 / 40

The molecule that serves as the primary electron carrier in photosynthesis is ____.

ATP

NADP+

NADPH

22 / 40

The molecule that serves as the primary energy currency in cells is ____.

ATP

NADPH

Glucose

23 / 40

The primary function of the Calvin cycle is to ____.

Break down glucose

Produce ATP

Fix carbon dioxide

24 / 40

The process by which plants absorb water through their roots is called ____.

Transpiration

Osmosis

Absorption

25 / 40

The enzyme responsible for the fixation of carbon dioxide during the Calvin cycle is ____.

Rubisco

ATP synthase

PEP carboxylase

26 / 40

The enzyme responsible for breaking down sucrose into glucose and fructose is ____.

Sucrase

Amylase

Cellulase

27 / 40

The process by which plants convert nitrogen gas into ammonia is called ____.

Nitrification

Denitrification

Nitrogen fixation

28 / 40

The process by which plants break down glucose to release energy is called ____.

Photosynthesis

Cellular respiration

Fermentation

29 / 40

The enzyme responsible for the initial fixation of carbon dioxide in C4 plants is ____.

PEP carboxylase

ATP synthase

Rubisco

30 / 40

The site of the light-dependent reactions of photosynthesis is the ____.

Stroma

Thylakoid membrane

Chloroplast

31 / 40

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

Photosynthesis

Fermentation

Respiration

32 / 40

The process by which plants convert nitrogen gas into ammonia is called ____.

Nitrogen fixation

Nitrification

Denitrification

33 / 40

The process by which plants lose water vapor through their leaves is called ____.

Transpiration

Osmosis

Respiration

34 / 40

The enzyme responsible for the synthesis of glucose-6-phosphate during glycolysis is ____.

Hexokinase

Phosphofructokinase

Glucokinase

35 / 40

The Calvin cycle occurs in the ____.

Thylakoid membrane

Mitochondria

Stroma

36 / 40

The breakdown of glucose in the absence of oxygen is called ____.

Photosynthesis

Respiration

Fermentation

37 / 40

The process by which plants break down glucose to release energy is called ____.

Photosynthesis

Cellular respiration

Fermentation

38 / 40

The primary storage carbohydrate in plants is ____.

Glycogen

Starch

Cellulose

39 / 40

The molecule produced by the light-dependent reactions that is used to power the Calvin cycle is ____.

Oxygen

NADPH

ATP

40 / 40

The molecule produced by the light-dependent reactions that is used to power the Calvin cycle is ____.

Oxygen

ATP

NADPH

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adminApril 3, 2024Last Updated: October 15, 2024

0 40 2 minutes read