Physics and Chemistry Concepts Quiz

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Which statement about gravitational force is true?

Gravitational force is always attractive. (correct)

Gravitational force is independent of distance.

Gravitational force can be both attractive and repulsive.

Gravitational force depends on mass and charge.

Which of the following is a correct statement about electromagnetic force?

Electromagnetic force only acts at large distances.

Electromagnetic force is independent of mass. (correct)

Electromagnetic force is always attractive.

Electromagnetic force depends on both mass and charge.

Which of the following statements about pathogens is correct?

Bacteria and fungi can both cause diseases in plants. (correct)

Pathogens can only affect plants through root systems.

Pathogen transmission can only occur through insects.

Only fungi can cause diseases in plants.

Which statement about the transmission of pathogens in plants is accurate?

Pathogen transmission can occur through water. Signup and view all the answers

Which of the following combinations correctly depicts the nature of gravitational and electromagnetic forces?

Only gravitational force is dependent on distance. Signup and view all the answers

Which phenomenon allows a trained singer to shatter a glass?

Resonance at the glass's natural frequency. Signup and view all the answers

Which of the following substances is classified as an aerosol?

Fog Signup and view all the answers

Which statement regarding the properties of pathogens is incorrect?

Bacteria can only cause diseases in animals. Signup and view all the answers

What are the charged species found in compounds composed of metals and non-metals called?

Ions Signup and view all the answers

Which statement about Dalton's atomic theory is true?

All matter is composed of small particles called atoms. Signup and view all the answers

In the molecular mass of a substance, what is it fundamentally based on?

The sum of the atomic masses of all atoms in a molecule Signup and view all the answers

What type of ion is formed when an atom gains electrons?

Anion Signup and view all the answers

According to Dalton's atomic theory, how do atoms combine to form compounds?

In the ratio of small whole numbers Signup and view all the answers

What is the atomic mass of oxygen expressed in atomic mass units (u)?

16 u Signup and view all the answers

Which of the following best describes a cation?

A positively charged ion Signup and view all the answers

What is the primary function of lysosomes in a cell?

They digest foreign materials and worn-out organelles. Signup and view all the answers

Which of the following statements is NOT a postulate of Dalton's atomic theory?

Atoms can be created during a chemical reaction. Signup and view all the answers

What would happen to a cell if the Golgi apparatus is not functioning properly?

The cell would be unable to package and dispatch materials. Signup and view all the answers

Which of the following is NOT a function of the Golgi apparatus?

Providing structural support to the cell Signup and view all the answers

What is one of the key roles of tissues in multicellular organisms?

They provide structural and mechanical strength. Signup and view all the answers

Which statement correctly describes a cation?

It is a positively charged ion. Signup and view all the answers

Which component of a cell is responsible for the modification and packaging of proteins?

Golgi apparatus Signup and view all the answers

The breakdown of organic material in lysosomes is facilitated by what?

Digestive enzymes Signup and view all the answers

What is true about the electron arrangement in atoms according to the Bohr-Bury scheme?

The outermost shell of an atom has a maximum of 8 electrons. Signup and view all the answers

What defines a tissue in biological terms?

A cluster of similar cells working together. Signup and view all the answers

What aspect of the stability of an atom was not explained by Rutherford's atomic model?

The behavior of electrons in the orbits. Signup and view all the answers

In the absence of the Golgi apparatus, what will primarily be affected?

The packaging and distribution of materials. Signup and view all the answers

Which of the following statements about neutrons is incorrect?

Bohr discovered the neutrons. Signup and view all the answers

Which statements regarding ions are incorrect?

A negatively charged ion is called an anion. Signup and view all the answers

What is a true statement regarding molecular mass?

It represents the mass of one mole of the substance. Signup and view all the answers

Which statement is incorrect about atomic structure?

Protons are negatively charged particles. Signup and view all the answers

Which statements about atomic certainty are correct?

Atoms can have varying numbers of neutrons and still be the same element. Signup and view all the answers

What type of tissue is responsible for the growth of plants in specific regions?

Meristematic tissue Signup and view all the answers

Which type of plastid is responsible for photosynthesis?

Chloroplast Signup and view all the answers

What happens to the cells formed by meristematic tissue?

They differentiate and adopt specific roles. Signup and view all the answers

What are the tiny pores on the outer layer of cells responsible for gas exchange called?

Stomata Signup and view all the answers

Which type of plastid is primarily associated with the storage of starch, oils, and proteins?

Leucoplast Signup and view all the answers

What is the primary purpose of disinfectants when applied to living tissues?

To kill or prevent the growth of microorganisms Signup and view all the answers

What are meristematic tissues classified into based on their location?

Apical, lateral, and intercalary Signup and view all the answers

Which of the following microorganisms are included in the human microbiome?

Bacteria, Viruses, Fungi Signup and view all the answers

What defines the differentiation of cells produced by meristematic tissue?

They eventually lose their ability to divide. Signup and view all the answers

Which statement correctly explains the blue color of the sky?

It occurs due to scattering of light by dust and water droplets. Signup and view all the answers

Which phenomenon explains the reddish appearance of the Sun during sunset and sunrise?

Least scattered light reaching our eyes Signup and view all the answers

Which of the following is NOT a criterion for classification of animals?

Cell wall structure Signup and view all the answers

What is the role of forests in the environment regarding air quality?

They purify the air by absorbing all kinds of pollutants Signup and view all the answers

Which group includes all forms of life considered microorganisms?

Viruses, Bacteria, Archaea Signup and view all the answers

Which statement about tincture of iodine is true?

It is a 2% iodine solution in an alcohol-water mixture. Signup and view all the answers