Who is credited with the discovery of mitochondria __________________?
Show answer Hide answer
Answer: B. Altmann
Explanation
Richard Altmann officially discovered and meticulously described cellular mitochondria during the year 1890. Altmann recognized the fundamental biological importance of these organelles and named them bioblasts initially. Scientific history credits Altmann with providing the first detailed microscopic observations of mitochondrial structures. Mitochondria are double-membrane bound organelles responsible for generating chemical energy inside eukaryotic cells. The term mitochondrion was later coined by Carl Benda based on their thread-like microscopic appearance. Cellular respiration and adenosine triphosphate production primarily occur within these vital metabolic powerhouses.
Cell biologists study mitochondrial function to understand energy metabolism disorders in human health. Dysfunctional mitochondria are often implicated in various neurodegenerative diseases and aging processes. Plant physiologists examine mitochondrial respiration rates to evaluate overall crop growth efficiency. Palade utilized advanced electron microscopy techniques decades later to elucidate detailed internal mitochondrial architecture. Cowdry contributed comparative studies on mitochondrial distribution across various animal and plant tissues. Garner worked primarily on photoperiodism in plants rather than discovering cellular mitochondrial structures.
- Subject
- Agriculture
- Category
- Agriculture
- Topic
- —
- Difficulty
- medium
Related questions
Q1. Whisky is produced through the distillation of __________________?
Show answer Hide answer
Answer: A. Fermented mash of malted or unmalted cereals and potatoes
Whisky is an alcoholic beverage obtained by the distillation of a fermented cereal mash. Cereal grains such as malted barley, corn, rye, or wheat provide the fermentable sugars. Distillation concentrates the alcohol and...
Q2. Which vitamin is also known as tocopherol ________________________ ?
Show answer Hide answer
Answer: D. Vit. E
Vitamin E is chemically known as tocopherol and functions primarily as a fat-soluble antioxidant. Tocopherol molecules protect cellular membranes by neutralizing harmful reactive oxygen species. This chemical designation...
Q3. Who provided the definition of humic acid?
Show answer Hide answer
Answer: B. Felbeek
Felbeck is widely recognized for foundational research regarding the structural properties of humic acids. Researchers investigating soil organic matter frequently cite Felbeck for characterizing these complex macromolec...
Q4. Who first discovered nucleic acids ________________?
Show answer Hide answer
Answer: B. Miescher
Friedrich Miescher successfully isolated and discovered nucleic acids from cellular pus nuclei in 1869. Miescher initially named this newly discovered phosphorus-rich cellular substance by the term nuclein. Historical re...
Q5. What is the WHO recommended daily calcium intake for adults _____________________?
Show answer Hide answer
Answer: C. 400-500 mg
Standard international health guidelines recommend a daily calcium intake of 400 to 500 mg for adults. Nutritional authorities establish these moderate daily thresholds to maintain optimal bone density and metabolic heal...
Q6. What type of developmental process takes place inside the female portion of the ovule ______________________?
Show answer Hide answer
Answer: B. Megasporogenesis
Megasporogenesis is the biological process involving the formation of megaspores inside the plant ovule. This developmental event occurs specifically within the female reproductive organs of flowering plants. During mega...