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Home > Quizzes and Fun Tests > GED Practice Tests > GED Practice Test - Science - Botany

GED Practice Test - Science - Botany

Welcome to the QuizMoz GED Practice Test - Science - Botany. QuizMoz offers one of the Internet's largest collection of quizzes for you to tease your brain and pit your wits against the experienced QuizMoz quiz masters. Go ahead and find out what you know about yourself and the world around you. Best of luck!!

Coverage :
The GEd Practice Test - Science - Botany has been designed to test the concepts of the test taker in one of the main branches of science, namely Botany. This test covers the various topics under plant science, like biology of cells, diversity of life, population biology etc.

GED Practice Test - Science - Botany Discussion Forum

Auxins are plant hormones which promote stem growth, fruit growth and tropisms in plants. Which one of the following is the most common auxin?

Ethylene

Cytokinin

Indole acetic acid

Gibberlins

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This Question is based on the following passage:

  Mitochondria are membrane-bound organelles, and like the nucleus have a double membrane. The outer membrane is fairly smooth. But the inner membrane is highly convoluted, forming folds called cristae. The cristae greatly increase the inner membrane's surface area. It is on these cristae that food (sugar) is combined with oxygen to produce ATP - the primary energy source for the cell.
Mitochondria's main role is the production of ATP (adenosine tri-phosphate) which is the principal energy storage molecule of the cell (it is also a component for the synthesis of nucleic acids (RNA and DNA) and it can act as a neurotransmitter)
ATP is produced in the electron transport chain which uses products of the Krebs cycle which is itself linked to the metabolism of sugars, fats and amino acids.
Mitochondria contain their own DNA which codes for some but not all the proteins found in mitochondria. It is believed that originally mitochondria were independent organisms that early on in evolutionary history have entered a symbiotic relationship with unicellular organisms.
Mitochondria are inherited only through the mother line (the sperm does not contribute mitochondria to the egg)

What is the main role of mitochondria?

Synthesis of nucleic acid

Acts as a neurotransmitter

Production of ATP

None of the above

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This Question is based on the following passage:

  Ecosystems vary in size. They can be as small as a puddle or as large as the Earth itself. Any group of living and nonliving things interacting with each other can be considered as an ecosystem. In an ecosystem, the food relation in its simplest form, representing a producer, primary consumer, a secondary consumer and decomposer, is called a food chain. 
Within each ecosystem, there are habitats which may also vary in size. A habitat is the place where a population lives. A population is a group of living organisms of the same kind living in the same place at the same time. All of the populations interact and form a community. The community of living things interacts with the non-living world around it to form the ecosystem. The habitat must supply the needs of organisms, such as food, water, temperature, oxygen, and minerals. If the population's needs are not met, it will move to a better habitat. Two different populations can not occupy the same niche at the same time, however. So the processes of competition, predation, cooperation, and symbiosis occur.

What is each step in a food chain called?

Trophic Stage

Trophic Grade

Trophic level

Stair

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This Question is based on the following passage:

  Ecosystems vary in size. They can be as small as a puddle or as large as the Earth itself. Any group of living and nonliving things interacting with each other can be considered as an ecosystem. In an ecosystem, the food relation in its simplest form, representing a producer, primary consumer, a secondary consumer and decomposer, is called a food chain. 
Within each ecosystem, there are habitats which may also vary in size. A habitat is the place where a population lives. A population is a group of living organisms of the same kind living in the same place at the same time. All of the populations interact and form a community. The community of living things interacts with the non-living world around it to form the ecosystem. The habitat must supply the needs of organisms, such as food, water, temperature, oxygen, and minerals. If the population's needs are not met, it will move to a better habitat. Two different populations can not occupy the same niche at the same time, however. So the processes of competition, predation, cooperation, and symbiosis occur.

What are the main components of an ecosystem?

Water and temperature

Oxygen and minerals

Water and minerals

Living and non living

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This Question is based on the following passage:

  Ecosystems vary in size. They can be as small as a puddle or as large as the Earth itself. Any group of living and nonliving things interacting with each other can be considered as an ecosystem. In an ecosystem, the food relation in its simplest form, representing a producer, primary consumer, a secondary consumer and decomposer, is called a food chain. 
Within each ecosystem, there are habitats which may also vary in size. A habitat is the place where a population lives. A population is a group of living organisms of the same kind living in the same place at the same time. All of the populations interact and form a community. The community of living things interacts with the non-living world around it to form the ecosystem. The habitat must supply the needs of organisms, such as food, water, temperature, oxygen, and minerals. If the population's needs are not met, it will move to a better habitat. Two different populations can not occupy the same niche at the same time, however. So the processes of competition, predation, cooperation, and symbiosis occur.

Two different populations can not occupy the same niche at the same time. What processes occur when two populations occupy the same niche?

Competition

Predation

Co-operation

Symbiosis

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This Question is based on the following passage:

  Ecosystems vary in size. They can be as small as a puddle or as large as the Earth itself. Any group of living and nonliving things interacting with each other can be considered as an ecosystem. In an ecosystem, the food relation in its simplest form, representing a producer, primary consumer, a secondary consumer and decomposer, is called a food chain. 
Within each ecosystem, there are habitats which may also vary in size. A habitat is the place where a population lives. A population is a group of living organisms of the same kind living in the same place at the same time. All of the populations interact and form a community. The community of living things interacts with the non-living world around it to form the ecosystem. The habitat must supply the needs of organisms, such as food, water, temperature, oxygen, and minerals. If the population's needs are not met, it will move to a better habitat. Two different populations can not occupy the same niche at the same time, however. So the processes of competition, predation, cooperation, and symbiosis occur.

Who are the main producers in an ecosystem?

Green Plants

Animals

Scavengers

Fungi and Bacteria

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  Hormones in animals coordinate body functions by being produced in one place and acting in another. This would be true for animal hormones but plant hormones are often produced in the structure or tissue in which they act. Plants do not have a circulatory system and "action at a distance" may not be a feature of plant hormones. 
Plant hormones seem to coordinate growth and development in different parts of the plant, and help the plant respond to environmental signals. They are molecules that are not directly involved in metabolic or developmental processes but they act at low concentrations to modify those processes.
There are five generally recognized classes of plant hormone. They are auxins, cytokinins, ethylene, abscisic acid and gibberlins. Some of the classes are represented by only one compound, others by several different compounds. They are all organic compounds, they may resemble molecules which turn up elsewhere in plant structure or function, but they are not directly involved as nutrients or metabolites.

Plants do not have which of the following?

Hormones

Auxins

Circulatory system

Nutrients

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This question is based upon the figure shown below

Functions of cell wall marked as 5 is:

Protection and reproduction

Mechanical support

Protection and mechanical support

Maintenance of balance of intracellular osmotic pressure

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This Question is based on the following passage:

  The three major functions that are basic to plant growth and development are:
Photosynthesis � the process of capturing light energy and converting it to sugar energy, in the presence of chlorophyll using CO2 and H2O,Respiration � the process of metabolizing (burning) sugars to yield energy for growth, reproduction and other life processes, and Transpiration � the loss of water vapor through the stomata of leaves. Photosynthesis and respiration are complementary processes in the living world. Photosynthesis uses the energy of sunlight to produce sugars and other organic molecules. These molecules in turn serve as food for other organisms. Many of these organisms carry out respiration, a process that uses O2 to form CO2 from the same carbon atoms that had been taken up as CO2 and converted into sugars by photosynthesis. In the process, the organisms that respire obtain the chemical bond energy that they need to survive.

Where does the energy needed for respiration come from?

Photosynthesis

Sunlight

Absorbed nutrients

From chemical bond energy

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10.

Where does the Krebs cycle take place?

Centriole

Vacuoles

Nucleus

Mitochondria

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11.

What precedes the Krebs cycle in a mitochondria?

Autolysis

Glycolysis

Pinocytosis

Protein synthesis

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12.

What is the end product of Krebs cycle?

6-carbon glucose breaks into two 3-carbon pyruvic acid units

2-carbon acetyl CoA joins with a 4-carbon compound to form a 6- carbon compound

Net gain of 2 ATP

Hydrogens join with NAD to form NADH2

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This Question is based on the following passage:

  

Proteins make up about 15% of the mass of the average person. Protein molecules are essential to us in variety of different ways. Much of the fabric of our body is constructed from protein molecules. Muscle, cartilage, ligaments, skin and hair - these are all mainly protein materials. The protein in the food we eat is our main source of the chemical building blocks we need to build our own protein molecules.
The primary structure of a segment of a polypeptide chain or of a protein is the amino-acid sequence of the polypeptide chain(s), without regard to spatial arrangement (apart from configuration at the alpha-carbon atom).
The sequence and properties of side chains determine all that is unique about a particular protein, including its biological function and its specific three-dimensional structure.

13.

Protein keratin is found in which part of the body?

Muscle

Cartilage

Skin

Hair

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This Question is based on the following passage:

  

Proteins make up about 15% of the mass of the average person. Protein molecules are essential to us in variety of different ways. Much of the fabric of our body is constructed from protein molecules. Muscle, cartilage, ligaments, skin and hair - these are all mainly protein materials. The protein in the food we eat is our main source of the chemical building blocks we need to build our own protein molecules.
The primary structure of a segment of a polypeptide chain or of a protein is the amino-acid sequence of the polypeptide chain(s), without regard to spatial arrangement (apart from configuration at the alpha-carbon atom).
The sequence and properties of side chains determine all that is unique about a particular protein, including its biological function and its specific three-dimensional structure.

14.

What determines the uniqueness of a protein?

Specific three-dimensional structure

Sequence of the polypeptide chain

Sequence and properties of side chains

Primary structure

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This question is based upon the figure shown below

This Question is based on the following passage:

  

Proteins make up about 15% of the mass of the average person. Protein molecules are essential to us in variety of different ways. Much of the fabric of our body is constructed from protein molecules. Muscle, cartilage, ligaments, skin and hair - these are all mainly protein materials. The protein in the food we eat is our main source of the chemical building blocks we need to build our own protein molecules.
The primary structure of a segment of a polypeptide chain or of a protein is the amino-acid sequence of the polypeptide chain(s), without regard to spatial arrangement (apart from configuration at the alpha-carbon atom).
The sequence and properties of side chains determine all that is unique about a particular protein, including its biological function and its specific three-dimensional structure.

15.

What does "nm" stand for in the above diagram?

Nano meter

Nino meter

Nina meter

Ninza meter

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Ques

Your Name
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This Question is based on the following passage:

  

Proteins make up about 15% of the mass of the average person. Protein molecules are essential to us in variety of different ways. Much of the fabric of our body is constructed from protein molecules. Muscle, cartilage, ligaments, skin and hair - these are all mainly protein materials. The protein in the food we eat is our main source of the chemical building blocks we need to build our own protein molecules.
The primary structure of a segment of a polypeptide chain or of a protein is the amino-acid sequence of the polypeptide chain(s), without regard to spatial arrangement (apart from configuration at the alpha-carbon atom).
The sequence and properties of side chains determine all that is unique about a particular protein, including its biological function and its specific three-dimensional structure.

16.

Gametes are generated as a result of which kind of cell division?

Meiosis

Mitosis

Photosynthesis

Phosphorylation

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Ques

Your Name
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This Question is based on the following passage:

  

Proteins make up about 15% of the mass of the average person. Protein molecules are essential to us in variety of different ways. Much of the fabric of our body is constructed from protein molecules. Muscle, cartilage, ligaments, skin and hair - these are all mainly protein materials. The protein in the food we eat is our main source of the chemical building blocks we need to build our own protein molecules.
The primary structure of a segment of a polypeptide chain or of a protein is the amino-acid sequence of the polypeptide chain(s), without regard to spatial arrangement (apart from configuration at the alpha-carbon atom).
The sequence and properties of side chains determine all that is unique about a particular protein, including its biological function and its specific three-dimensional structure.

17.

Cell which have two sets of chromosomes are called______.

Haploid

Diploid

Monocot

Dicot

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Ques

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This Question is based on the following passage:

  

Proteins make up about 15% of the mass of the average person. Protein molecules are essential to us in variety of different ways. Much of the fabric of our body is constructed from protein molecules. Muscle, cartilage, ligaments, skin and hair - these are all mainly protein materials. The protein in the food we eat is our main source of the chemical building blocks we need to build our own protein molecules.
The primary structure of a segment of a polypeptide chain or of a protein is the amino-acid sequence of the polypeptide chain(s), without regard to spatial arrangement (apart from configuration at the alpha-carbon atom).
The sequence and properties of side chains determine all that is unique about a particular protein, including its biological function and its specific three-dimensional structure.

18.

Bread moulds, yeasts, mushrooms and morels, puffballs and ergot belongs to:

Fungi

Animalia

Protista

Plantae

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This Question is based on the following passage:

  

Proteins make up about 15% of the mass of the average person. Protein molecules are essential to us in variety of different ways. Much of the fabric of our body is constructed from protein molecules. Muscle, cartilage, ligaments, skin and hair - these are all mainly protein materials. The protein in the food we eat is our main source of the chemical building blocks we need to build our own protein molecules.
The primary structure of a segment of a polypeptide chain or of a protein is the amino-acid sequence of the polypeptide chain(s), without regard to spatial arrangement (apart from configuration at the alpha-carbon atom).
The sequence and properties of side chains determine all that is unique about a particular protein, including its biological function and its specific three-dimensional structure.

19.

Which of the following is wrongly matched?

Bat- Mammalia

Amoeba- Protozoa

Lizard- Arthropoda

Crocodile - Reptilia

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  Hardy Weinberg equilibrium-
Hardy-Weinberg equilibrium describes a state in which genotype frequencies are constant from generation to generation and in which genotype frequencies are a product of allele frequencies. This condition prevails in situations in which there are an absence of mutations, migrations, non-random mating and environmental factors favoring particular genotypes. In a paper published in 1908, G. H. Hardy sought to disprove the Mendelian idea that dominant genetic characteristics would tend to appear in the whole population, while recessive characteristics would tend to disappear.
A population is a set of interbreeding individuals all belonging to the same species. In most sexually reproducing species, including humans, each organism contains two copies of virtually every gene�one inherited from each parent. Any particular gene may occur in slightly different forms, called alleles. An organism with two identical alleles is called homozygous for that gene, and one with two different alleles is called heterozygous. During the formation of gametes, the two alleles separate into different gametes.

20.

Whose ideas has G.H Hardy tried to disprove?

Lamark

Mendel

Darwin

Plato

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GED Practice Test - Science - Botany Discussion Forum

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What others think about GED Practice Test - Science - Botany

By: kirandeep kaur on Jul 20, 2009

the questions r really good

By: m.rafique on Jun 24, 2009

test is very nice and this kind of tests increase our knowledge.so do these exercises.

By: jen on Jan 25, 2009

good very good very good very good very good very good

By: reyad on Nov 13, 2008

very good and tough as well.it was challenging

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