The answer is 2. Since this experiment aims to separate a certain mixture, chromatography is used. Chromatography is used to separate certain mixtures and record the distance between of the mobile and stationary phase.

2

The answer is 3. Chromatography is used to separate certain mixtures and record the distance between of the mobile and stationary phase.

3

The answer is 4. The chloroplast is the one responsible for producing food for the plant cell. It is considered as one of the parts that are essential to the cell. This is also a part of the plant that gives color to it.

4

The organism would be located at the right upper part of the view.

The answer is 2. As stated in the passage, the absence of sugar, when benedict’s solution is applied, will have the color royal blue as the resulting reaction.

2

The answer is 4. This part of the microscope is called the diaphragm. The diaphragm is the one that allows how much light will pass through the stage and into the specimen.

4

The answer is 2. This part of the microscope is called the fine adjustment. This functions to focus on the specimen when using high power and to sharpen the specimen when using low power. One important function of this part is also to observe or see the different layers of the specimen.

2

The purpose of using stains is to be able to identify certain parts of a specimen. Specific stains are used for specific parts. This is because some parts of an organism or specimen react only to specific stains.

If the low power objective has a magnification of 10X with an equivalent of 1500 for its diameter. If the low power objective has a diameter of 1500, then the high power objective will measure about 4500 in diameter with respect to its magnification of 30X.

4500

The answer is 2. A compound light microscope os a tool used to magnify certain organisms or things that are too small to be seen by the naked eye. This is usually used to identify parts or structures as well as minute details.

2

Structure A is the pharynx of the earthworm. Structure C, which is a dorsal blood vessel, has a smaller diameter compared to structure A.

4

The nucleus is considered as the control center of the cell. It is where all activities are regulated. The major function of the nucleus is the storage of the cell’s genetic material and is the one responsible for DNA replication.

The technique used to make this organelle more visible is by staining. Staining is done in order to further identify certain or specific organelles in an organism.

The answer is 4. The coarse adjustment is the part of the microscope wherein when turned, the movement created is bigger compared to the fine adjustment. It moves the stage of the microscope and is not used when on a high power field view.

4

The answer is 1. A hypothesis that can be made here would be that water plants, when exposed to sunlight, release gas which presented by the bubbles in the experiment.

1

The answer is 2. Mitosis is a type of cell division that has the same number of daughter cells as well as the same number of chromosomes. This type of cell division usually occurs in tissues that need regeneration.

2

Hereditary information is located in genes found in chromosomes. This chromosome is a thread-like structure which is coiled tightly and is supported by histones.

Chromosomes

The nucleus is considered as the control center of the cell. It is where all activities are regulated. The major function of the nucleus is the storage of the cell’s genetic material and is the one responsible for DNA replication.

This part of the microscope is called the diaphragm. The diaphragm is the one that allows how much light will pass through the stage and into the specimen.

Diaphragm

The answer is 3. PH is defined gives an idea if a substance is alkaline or acid by the use of a pH scale. 0-7 means that a substance acidic while 7-14 means that a substance is basic and a pH of 7 means that a substance is neutral.

3

The answer is 4. In a microscope, the image is always reversed and inverted, therefore the letter that can be reversed or inverted but will still look the same would be letter D.

4

The answer is 1. Gel electrophoresis is used scientists or researchers to cut and put DNA or RNA into fragments and place them in a gel in order for them to study easier.

1