Explanation

The magnification of a light microscope is formed by a combination of the eyepiece and objective lens.

The objective lens collects and magnifies light from the sample.

It is then further magnified by the eyepiece, producing the final magnification.

Explanation

A ratio is a comparison of two values, often expressed as a fraction or a decimal.

It shows the relative size or quantity of one value in relation to another.

For example: A ratio of 3:4 (or 3/4) compares two values, 3 and 4.

Explanation

The correct order is: Ribosomes → RER → Golgi body → Lysosome.

• Ribosomes: Protein synthesis occurs here, and the newly synthesized protein is released into the cytosol.
• RER (Rough Endoplasmic Reticulum): The protein is transported to the RER, where it is processed and modified (e.g., folding, glycosylation).
• Golgi body: The protein is packaged into vesicles and transported to the Golgi body, where it is further modified and sorted.
• Lysosome: The protein is delivered to lysosomes, where it can be used for various cellular processes (e.g., digestion, recycling).

Explanation

Activators are molecules that increase the activity of enzymes, often by binding to a specific site on the enzyme.

Inhibitors are molecules that decrease the activity of enzymes, often by binding to a specific site on the enzyme.

Explanation

• Bile salts are produced by the liver and stored in the gallbladder.
• They are released into the duodenum (the first part of the small intestine) to facilitate fat digestion.

Explanation

• The energy released (14135 KJ) is equivalent to the energy released from the oxidation of glucose (C6H12O6), which is typically around 2820 KJ/mol.
• To find the number of moles of glucose consumed, you can divide the energy released (14135 KJ) by the energy released per mole of glucose (2820 KJ/mol):
• 14135 KJ ÷ 2820 KJ/mol = 5 mol

Explanation

Food chains are linear sequences showing the feeding relationships between organisms in an ecosystem.

They illustrate how energy and nutrients are passed from one organism to another, from producers (like plants) to consumers (like animals).

Explanation

During metaphase, homologous chromosomes (pairs of chromosomes that contain the same genes) arrange themselves on the equator of the spindle, also known as the metaphase plate.

This is a critical step in the cell division process, ensuring that each daughter cell receives a complete set of chromosomes.

Explanation

Chromosomes are thread-like structures that appear during cell division, specifically during the prophase stage of mitosis or meiosis.

They are made up of condensed chromatin and carry genetic information from one generation of cells to the next.

Explanation

Biodiversity refers to the degree of variation within or among species.

Including genetic, species, and ecosystem diversity, across different regions of the Earth.