Quater 1 Living Environment Exam

The correct order from simplest to most complex is cells, tissues, organs, and organ systems. This is because cells are the basic building blocks of life, which then combine to form tissues. Tissues further organize to form organs, and multiple organs work together to create organ systems.

The conclusion is written after the experiment is done and all of the data is collected.

Carbohydrates are organic compounds made up of carbon, hydrogen, and oxygen. Amino acids and alcohol are not examples of carbohydrates, as they have different chemical structures. Fats and waxes are lipids, not carbohydrates. Sugars and starches, on the other hand, are both examples of carbohydrates. Sugars are simple carbohydrates, while starches are complex carbohydrates. They serve as a source of energy in the body and are found in various foods like fruits, vegetables, grains, and legumes.

The hypothesis being tested in this investigation is that sunlight is necessary for the normal growth of bean plants. This can be concluded based on the observation that the seedlings grown in the dark were white with long slender stems and soon died, while the seedlings grown in sunlight were green and healthy. This suggests that the absence of sunlight negatively impacted the growth and survival of the bean seedlings.

The group that contains only molecules that are each assembled from smaller organic compounds is proteins, DNA, fats, starch. Proteins are made up of amino acids, which are smaller organic compounds. DNA is made up of nucleotides, which are also smaller organic compounds. Fats are composed of glycerol and fatty acids, both of which are smaller organic compounds. Starch is a complex carbohydrate made up of glucose molecules, which are smaller organic compounds. Therefore, all the molecules in this group are assembled from smaller organic compounds.

Mitochondria and chloroplasts containing genetic material and being able to replicate is an exception to the cell theory. The cell theory states that cells are the basic functional units of all living things, and that all cells arise from pre-existing cells. However, mitochondria and chloroplasts are organelles found within cells that have their own genetic material and can replicate independently. This exception challenges the idea that all cellular functions are solely performed by cells themselves.

The correct answer is choloroplast-serves as a site for photosynthesis. Chloroplasts are organelles found in plant cells that contain chlorophyll, a pigment that captures sunlight energy. This energy is then used to convert carbon dioxide and water into glucose and oxygen through the process of photosynthesis. Therefore, the function of chloroplasts is to serve as a site for photosynthesis.

The arrows in the diagram indicate the process of transport. This is because the arrows are showing the movement of substances from one part of the diagram to another, suggesting the transfer of materials within an organism.

The removal of carbon dioxide and nitrogenous wastes from an organism is a process known as excretion. Excretion is a vital life function that helps to eliminate metabolic waste products from the body. Carbon dioxide is a waste product of cellular respiration, while nitrogenous wastes are produced from the breakdown of proteins. These waste products need to be removed from the body to maintain homeostasis and prevent toxicity. Therefore, the correct answer is excretion.

The organism described in the question is classified in the kingdom Protista. This is because it is unicellular, contains chloroplasts (which are responsible for photosynthesis in plants), possesses a flagellum (used for movement), and has other membrane-bound organelles. The kingdom Protista includes a diverse group of eukaryotic organisms that do not fit into the other traditional kingdoms such as plants, fungi, or animals.

The most likely explanation for many of the birds dying after eating worms invaded by bacteria is that the bacteria interfered with the normal life functions of the bird. This interference could have caused illness or other detrimental effects on the bird's health, leading to their death.

Starch is a polysaccharide because it is a complex carbohydrate made up of multiple glucose molecules linked together. Polysaccharides are large molecules composed of repeating sugar units, and starch fits this description as it is a polymer of glucose molecules. Maltase, ribose, and glucose are not polysaccharides. Maltase is an enzyme that breaks down maltose, ribose is a monosaccharide, and glucose is a monosaccharide as well.

The independent variable is the measurable thing that changes in each set up. Reliable experiments only have 1.

Organisms are classified into kingdoms primarily on the basis of their structure. This refers to the physical characteristics and features of an organism, such as its cell type, body organization, and reproductive methods. By examining these structural traits, scientists can determine the evolutionary relationships between different organisms and categorize them into different kingdoms. This classification system helps to organize and understand the vast diversity of life on Earth.

The presence of DNA in both the organelles mitochondrion and nucleus suggests that DNA functions both inside and outside of the nucleus. The mitochondrion is responsible for energy production, while the nucleus contains the majority of the cell's genetic material. Therefore, DNA plays a role in both energy production and genetic information storage, indicating its functions in both organelles.

The correct answer is "reactions that are controlled by catalysts." This is because catalysts are substances that speed up chemical reactions without being consumed in the process. In cells, chemical breakdown processes, such as metabolism, require catalysts to occur efficiently. Without catalysts, these reactions would proceed too slowly to sustain life. Therefore, the involvement of catalysts in all chemical breakdown processes in cells is crucial for maintaining cellular function.

Living organisms can be best distinguished from nonliving things by determining the presence or absence of metabolic activities. Metabolic activities refer to the various chemical processes that occur within an organism to maintain life, such as digestion, respiration, and reproduction. Nonliving things do not possess the ability to carry out these complex metabolic processes. Therefore, by assessing the presence or absence of metabolic activities, we can differentiate between living organisms and nonliving things.

The hereditary information is stored inside the nucleus of a cell. The nucleus contains chromosomes, which are structures made of DNA. Genes are segments of DNA that are located on the chromosomes. Therefore, the correct answer is that the nucleus has chromosomes that contain many genes.

The correct answer is B and E. This is because the common names "Grass Pickeral" and "Muskellunge" correspond to the scientific names "Esox Americanus" and "Esox masquinongy" respectively. Therefore, option B and E are the correct pairs of common and scientific names.

Thomas Morgan was 'modifying' Gregor Mendel's scientific discovery like in the answer.

In controlled experiments, it is ideal to have only one independent variable. This allows for a clear understanding of the cause and effect relationship between the independent variable and the dependent variable. By controlling all other variables, researchers can confidently attribute any changes in the dependent variable to the manipulation of the independent variable. Using multiple independent variables can make it difficult to determine which variable is responsible for the observed effects, leading to confounding variables and less reliable results. Therefore, it is best to isolate and focus on one independent variable at a time in controlled experiments.

Germinates- Sprouts

Respiration is the correct answer because it is the process by which living organisms convert energy stored in food into a usable form. During respiration, cells break down glucose and other molecules to release energy in the form of ATP, which can be used for various cellular processes. This process occurs in all living organisms, allowing them to obtain the energy necessary for growth, regulation, and other vital functions.

Nutrition is the process by which organisms obtain and process materials needed for other activities. It involves the intake of food or nutrients, the digestion and absorption of these nutrients, and the utilization of these nutrients for energy, growth, and repair. Through nutrition, organisms obtain the necessary substances such as carbohydrates, proteins, fats, vitamins, and minerals to carry out various metabolic processes and maintain their overall health and well-being.

The correct answer is "Starch is formed by the chemical bonding of glucose molecules." This is an example of the life process known as synthesis because it involves the creation of a larger molecule (starch) by chemically bonding smaller molecules (glucose).

Certain poisons that interfere with the function of enzymes in mitochondria directly affect the cell's ability to build proteins. Proteins are essential for various cellular processes, including cell growth, repair, and regulation. Enzymes play a crucial role in protein synthesis, and any disruption in their function can hinder the cell's ability to build proteins. This can have severe consequences for the organism as proteins are involved in numerous vital functions, such as maintaining the structure and function of cells, facilitating chemical reactions, and acting as signaling molecules.

To support the hypothesis that enzyme C works best in a slightly basic environment, the data that should be collected is the amino acid sequence of enzyme C. This is because the amino acid sequence determines the structure and function of the enzyme. By analyzing the sequence, it can be determined if enzyme C has any specific amino acids or regions that are more effective in a slightly basic environment, indicating its optimal conditions for activity. The other options, such as the shapes of substances x and y after the reaction, the amount of substance w produced at various pH levels, and the temperature before the reaction, do not directly provide information about the enzyme's preference for a slightly basic environment.

The correct answer is gene->chromosome->nucleus. This sequence represents a decrease from the greatest number to the least number of structures present in a cell. Genes are present in the largest numbers, followed by chromosomes, and then the nucleus, which is present in the smallest number within a cell.

The diagram represents the process of photosynthesis, where inorganic molecules (carbon dioxide and water) are converted into organic molecules (glucose). Oxygen is also produced as a byproduct. Therefore, the set of molecules best represented by letters A and B is A: oxygen and water, B: glucose.

Intra- within

The given correct answer suggests that scientific explanations are tentative and subject to change. This is because earlier studies placed the hippo as a close relative of wild pigs, but recent studies have discovered stronger evidence for the connection to whales. This change in understanding highlights the dynamic nature of scientific knowledge and the need for continuous research and reevaluation of hypotheses.

Stopping the flask tightly to prevent evaporation of the solution is an unsafe lab procedure because it can lead to the buildup of pressure inside the flask. As the solution is heated, it may produce gases or expand, and if the flask is tightly stoppered, the pressure can build up and cause the flask to rupture or explode. It is important to allow for the release of pressure and gases during heating by using a loose or vented stopper or by not stoppering the flask at all.