1.
What organelle is responsible for packaging proteins?
Correct Answer
C. Golgi Bodies
Explanation
The Golgi Bodies are responsible for packaging proteins. They receive proteins from the endoplasmic reticulum and modify them, adding necessary molecules or tags. They then package these proteins into vesicles and send them to their final destinations within the cell or for secretion outside the cell. The Golgi Bodies play a crucial role in the sorting, processing, and packaging of proteins, ensuring they are properly prepared for their functions.
2.
Which of the following organelles contain the genetic information of a cell?
Correct Answer
B. Nucleus
Explanation
The nucleus contains the genetic information of a cell. It houses the cell's DNA, which carries the genetic instructions necessary for the cell's functions and development. The DNA in the nucleus is organized into chromosomes and is responsible for determining the traits and characteristics of an organism. The other organelles listed, such as mitochondria, cytoplasm, and Golgi bodies, do not contain the genetic information of a cell.
3.
Which of the following does a plant cell have that an animal cell does not?
Correct Answer
A. Chloroplast
Explanation
A plant cell has chloroplasts, which are responsible for photosynthesis and contain the pigment chlorophyll. Animal cells do not have chloroplasts as they do not undergo photosynthesis. The cell membrane, lysosome, and nucleus are present in both plant and animal cells. The cell membrane controls the movement of substances in and out of the cell, lysosomes are involved in the digestion of waste materials, and the nucleus contains the genetic material and controls the cell's activities.
4.
A paramecium uses which of the following for locomotion?
Correct Answer
D. Cilia
Explanation
A paramecium uses cilia for locomotion. Cilia are hair-like structures that cover the surface of the paramecium and beat in a coordinated manner, propelling the organism through its watery environment. These tiny hair-like structures create a wave-like motion, allowing the paramecium to move forward or change direction. The cilia also help the paramecium to capture food particles and move them towards its oral groove for ingestion.
5.
Which organelle is only found in animal cells, and is responsible for digesting wastes?
Correct Answer
A. Lysosomes
Explanation
Lysosomes are organelles that are only found in animal cells and are responsible for digesting wastes. They contain digestive enzymes that break down various substances, including cellular debris, worn-out organelles, and foreign substances that enter the cell. This process helps in maintaining cellular homeostasis and eliminating waste materials from the cell. Lysosomes play a crucial role in cellular waste management and are not present in plant cells. Therefore, the correct answer is lysosomes.
6.
What is the name of the process that plants use to turn sunlight and water into energy?
Correct Answer
D. pHotosynthesis
Explanation
Photosynthesis is the correct answer because it is the process by which plants convert sunlight, water, and carbon dioxide into glucose and oxygen. During photosynthesis, plants use chlorophyll in their leaves to capture sunlight energy, which is then used to convert water and carbon dioxide into glucose and oxygen. This process is essential for plants to produce their own food and release oxygen into the atmosphere.
7.
What is the process of cell division called?
Correct Answer
B. Mitosis
Explanation
Mitosis is the process of cell division, where a single cell divides into two identical daughter cells. During mitosis, the cell's nucleus and genetic material are duplicated and evenly distributed to the two daughter cells. This process is crucial for growth, development, and repair of tissues in multicellular organisms. Cellular respiration is the process by which cells convert glucose into energy, fermentation is an anaerobic process that produces energy in the absence of oxygen, and photosynthesis is the process by which plants convert sunlight into energy.
8.
Which of the following protists lives as a colony?
Correct Answer
D. Volvox
Explanation
Volvox is a multicellular protist that lives as a colony. Each individual cell in the colony is connected to the others and they work together to perform various functions. In contrast, paramecium, amoeba, and euglena are all unicellular protists that live as individual organisms.