1.
What organelles are typically found in animal cells?
Correct Answer
B. Cell membrane and cytoplasm
Explanation
Animal cells feature a protective cell membrane and cytoplasm containing various organelles. The cell membrane controls substance movement, and the cytoplasm houses essential structures like the nucleus and mitochondria. Options like cell wall, stomach, and chloroplast are absent in animal cells.
2.
How much of your chromosomes do you inherit from each parent?
Correct Answer
C. 1/2 from each
Explanation
During conception, individuals inherit half of their chromosomes from their biological mother and the other half from their biological father, maintaining genetic diversity and a balanced chromosomal set.
3.
If a cell has many mitochondria, what will it produce a lot of?
Correct Answer
C. Energy
Explanation
Abundant mitochondria in a cell indicate a heightened capacity for energy production. Mitochondria are recognized as the cell's powerhouses, generating ATP through cellular respiration, providing energy for various cellular processes.
4.
What do the chloroplasts use to make sugar for energy?
Correct Answer
B. Sunlight
Explanation
Chloroplasts utilize sunlight during photosynthesis to convert carbon dioxide and water into glucose (sugar). This process serves as a fundamental source of energy for plants and contributes to oxygen production.
5.
Where does cellular respiration occur in a cell?
Correct Answer
C. Mitochondria
Explanation
Cellular respiration, the process converting glucose and oxygen into energy, occurs within the mitochondria. These organelles contain enzymes essential for glycolysis, the Krebs cycle, and oxidative phosphorylation, facilitating energy production.
6.
What are the reactants in cellular respiration?
Correct Answer
A. Sugar and oxygen
Explanation
Cellular respiration commences with the utilization of sugar and oxygen, initiating a cascade of chemical reactions that result in energy production (ATP). Glucose breakdown releases energy crucial for cellular functions.
7.
What are the products of cellular respiration?
Correct Answer
D. Carbon dioxide and water
Explanation
The products of cellular respiration include carbon dioxide and water, essential byproducts generated as cells convert glucose and oxygen into energy. Carbon dioxide is expelled, while water contributes to cellular processes.
8.
How many daughter cells are formed during mitosis?
Correct Answer
B. 2
Explanation
Mitosis culminates in the creation of two genetically identical daughter cells from a single parent cell. This ensures cellular reproduction, tissue growth, and maintenance.
9.
How much DNA is present in the daughter cells after mitosis?
Correct Answer
A. The same
Explanation
Daughter cells receive an identical copy of DNA from the parent cell during mitosis, maintaining the same genetic information. This ensures genetic continuity in cell generations.
10.
Where is genetic material stored in the cell?
Correct Answer
A. In the nucleus
Explanation
Genetic material, including chromosomes and DNA, is stored within the nucleus of a cell. The nucleus orchestrates cellular activities and serves as the repository for genetic information.
11.
What do a group of cells group together to form?
Correct Answer
C. Tissue
Explanation
A group of cells come together to form tissues. Tissues are groups of cells that work together to perform a specific function in the body. They are the building blocks of organs and organ systems.
12.
Multicellular organisms have different types of tissues because they have many different types of:
Correct Answer
B. Cells
Explanation
Multicellular organisms exhibit various tissues owing to the presence of diverse cell types. Specialized cells collaborate to form tissues, serving specific functions within the organism. This cellular specialization ensures efficiency and adaptability.
13.
Where is DNA found?
Correct Answer
C. In the chromosomes in the nucleus
Explanation
DNA is situated within the chromosomes, housed in the nucleus of a cell. Chromosomes ensure the organized storage and transmission of genetic material. This centralized location facilitates accurate replication and transcription processes.
14.
What does nucleic acid contain?
Correct Answer
B. Genetic information (both RNA and DNA are mad of nucleic acid)
Explanation
Nucleic acids, such as RNA and DNA, encapsulate genetic information essential for the functioning and development of living organisms. They carry instructions vital for protein synthesis and the transmission of hereditary traits.
15.
What does a plant cell have that an animal cell does not?
Correct Answer
D. Cell wall and a chloroplast and a large vacuole
Explanation
Plant cells possess distinctive features like a cell wall, chloroplast, and a large vacuole. These structures provide structural support, enable photosynthesis, and maintain turgor pressure, setting them apart from animal cells. This adaptation suits the unique requirements of plant life.