1.
What does a Cell membrane do?
Correct Answer
A. Surrounds and protects the contents of the cell
Explanation
The cell membrane is a selectively permeable barrier that surrounds and protects the contents of the cell. It acts as a physical barrier, preventing the entry of harmful substances and allowing the passage of essential molecules. The cell membrane also maintains the internal environment of the cell by regulating the movement of ions and other molecules. Additionally, it plays a crucial role in cell signaling and communication with other cells. Overall, the cell membrane is responsible for the protection and integrity of the cell.
2.
The cytoplasm________
Correct Answer
C. Is the medium that the cell's chemical reactions takes place in.
Explanation
The cytoplasm is the medium in which the cell's chemical reactions take place. It is a gel-like substance that fills the cell and provides a platform for various cellular processes. It contains enzymes and other molecules necessary for metabolic reactions, such as protein synthesis, energy production, and waste elimination. The cytoplasm also helps in the transportation of materials within the cell, allowing for the distribution of oxygen and nutrients to different parts of the cell.
3.
The Nucleus ______
Correct Answer
B. Controls the cells activities, controls what enters and leaves the nucleus
Explanation
The nucleus controls the cell's activities and what enters and leaves the nucleus. This is because the nucleus contains the cell's DNA, which carries the instructions for the cell's functions and activities. It also has a nuclear membrane that regulates the passage of molecules in and out of the nucleus. Therefore, the nucleus plays a crucial role in controlling the cell's activities and maintaining its internal environment.
4.
Which cell part is like a storage place for food, waste and other substances that can not be used right away?
Correct Answer
E. Vacuoles
Explanation
Vacuoles are like storage places for food, waste, and other substances that cannot be used immediately. They are membrane-bound organelles found in plant and animal cells. Vacuoles store nutrients, water, and waste products, helping to maintain cell turgor and regulate cell metabolism. They also play a role in detoxification and the breakdown of macromolecules. Therefore, vacuoles are the correct answer to this question.
5.
The _______ is responsible for the 'manufacturing and processing' of proteins that are made by the cell.
Correct Answer
B. Endoplasmic Reticulum
Explanation
The endoplasmic reticulum is responsible for the 'manufacturing and processing' of proteins that are made by the cell. It is an organelle that consists of a network of membranes and is involved in protein synthesis, lipid metabolism, and detoxification of drugs. The rough endoplasmic reticulum, which is studded with ribosomes, is responsible for protein synthesis, while the smooth endoplasmic reticulum is involved in lipid metabolism and detoxification. Overall, the endoplasmic reticulum plays a crucial role in the production and modification of proteins within the cell.
6.
What does the mitochondria do?
Correct Answer
A. Generates most of the cells energy supply
Explanation
The mitochondria is responsible for generating most of the cell's energy supply through a process called cellular respiration. It produces adenosine triphosphate (ATP), which is the main source of energy for cellular activities. This energy is essential for various functions such as muscle contraction, cell division, and maintaining the overall metabolic processes of the cell.
7.
What organelle provides support for the cell?
Correct Answer
D. Cell wall
Explanation
The cell wall is a rigid layer that provides support and protection for the cell. It helps maintain the shape of the cell and prevents it from bursting or collapsing under pressure. The cell wall is found in plant cells, bacteria, fungi, and some protists. It is made up of cellulose in plants and peptidoglycan in bacteria. The other options listed, such as cytoplasm, nucleus, cell membrane, and ribosomes, do not provide support for the cell.
8.
What is the Chloroplasts job?
Correct Answer
C. It's their job to make ChloropHyll by converting energy from the sun into food for the plant
Explanation
Chloroplasts are responsible for the process of photosynthesis in plants. They contain chlorophyll, a pigment that captures energy from sunlight. This energy is then converted into chemical energy, which is used to produce glucose (food) for the plant. Therefore, the correct answer is that the job of chloroplasts is to make chlorophyll by converting energy from the sun into food for the plant.
9.
Ribosomes.....
Correct Answer
B. Make the proteins from amino acids
Explanation
Ribosomes are responsible for protein synthesis in the cell. They use the information encoded in the DNA to assemble amino acids into specific sequences, forming proteins. This process is essential for various cellular functions, as proteins are involved in almost every aspect of cell structure and function. Therefore, the correct answer is that ribosomes make proteins from amino acids.
10.
Golgi apparatus
Correct Answer
C. Puts together simple molecules into complex ones
Explanation
The Golgi apparatus is responsible for putting together simple molecules into complex ones. It receives proteins and lipids from the endoplasmic reticulum and modifies them, creating more complex molecules that can be used by the cell. This process involves adding sugars and other molecules to the proteins and lipids, as well as sorting and packaging them for transport to their final destination within or outside the cell. The Golgi apparatus plays a crucial role in the synthesis and modification of molecules, contributing to the overall functioning and structure of the cell.
11.
Nucleolus:
Correct Answer
B. Where ribosomes are made
Explanation
The nucleolus is responsible for the production of ribosomes, which are essential for protein synthesis in the cell. It is a distinct region within the nucleus where ribosomal RNA (rRNA) is synthesized and combined with proteins to form ribosomes. These ribosomes are then transported out of the nucleolus to other parts of the cell where they participate in protein synthesis. Therefore, the nucleolus plays a crucial role in the production of ribosomes, making the given answer "where ribosomes are made" correct.
12.
What are theĀ 3 main things in a Nucleus?
Correct Answer
A. Nucleolus, Nuclear Membrane, Chromatin
Explanation
The correct answer is Nucleolus, Nuclear Membrane, Chromatin. The nucleus is a membrane-bound organelle found in eukaryotic cells. It contains the genetic material of the cell, which is organized into structures called chromosomes. The nucleolus is a substructure within the nucleus that is responsible for the production of ribosomes. The nuclear membrane surrounds the nucleus and separates it from the rest of the cell. Chromatin is the material that makes up the chromosomes and contains the DNA of the cell.