Test on Cell structure: plant and animal

Question 1: The nucleus, often the most prominent organelle in eukaryotic cells, serves as the cell's control center and contains the cell's genetic material.

A. Yes

B. No

Explanation: The study materials state, 'Nucleus: Often the most prominent organelle, the nucleus serves as the cell's control center. It contains the cell's genetic material (DNA) organized into chromosomes.'

Question 2: Which specific feature of the interactive 3D cell simulation allows a student to identify individual organelles and their biological roles?

A. Clicking on or highlighting organelles to reveal their names and functions

B. Magnifying specific organelles to observe their intricate internal structures

C. Placing plant and animal cells side-by-side for visual comparison

D. Freely navigating around and rotating 3D models of cells

Explanation: The study materials state under 'Identify Organelles' that a student can 'Click on or highlight individual organelles to reveal their names and specific functions.' This directly describes the feature for identifying organelles and their biological role. Magnifying organelles allows observation of internal structures, comparing cells identifies differences between cell types, and navigating/rotating provides spatial understanding, but none of these are described as the specific mechanism for identifying an organelle by its name and function within a single cell model.

Question 3: Peroxisomes permanently store hydrogen peroxide for cellular signaling.

A. Yes

B. No

Explanation: Peroxisomes convert the hydrogen peroxide they produce into water and oxygen by the enzyme catalase, preventing cellular damage, rather than storing it permanently for any purpose.

Question 4: The Golgi apparatus primarily functions to synthesize new proteins for secretion outside the animal cell.

A. Yes

B. No

Explanation: The Golgi apparatus receives proteins from the ER, then modifies, sorts, and packages them into vesicles for transport or secretion. Protein synthesis (translation) is the responsibility of ribosomes, which are either free in the cytoplasm or attached to the Endoplasmic Reticulum.

Question 5: According to the provided study materials, which of the following substances can be stored by the small vacuoles found in animal cells?

A. Water

B. Ions

C. Waste products

D. Genetic material

Explanation: The study materials state that small vacuoles in animal cells are typically involved in the storage of water, ions, or waste products. Genetic material is not mentioned as a substance stored by these vacuoles.