1. lysosomes are found\na. in animal cells. b. in plant cells. c. in all eukaryotic cells. d. in all…

1. lysosomes are found\na. in animal cells. b. in plant cells. c. in all eukaryotic cells. d. in all prokaryotic cells.\n2. which of the following are found in lysosomes?\na. polysaccharides b. emulsification acids c. digestive enzymes d. glycogen\n3. what is the structure labeled at y?\na. recognition protein. b. phospholipid. c. nutrient molecules. d. carbohydrate\n4. facilitated and active transport both\na. require atp.\nb. operate in the sodium - potassium pump\nc. require protein carriers\nd. dont require atp.\n5. most of the cell processes are controlled by the\na. nucleus b. polysome c. mitochondria d. endoplasmic reticulum\n6. which of the following indicates the organelle responsible for energy production in the cell.\na. w b. x c. y d. z
Answer
Brief Explanations:
- Lysosomes are membrane - bound organelles. They are present in animal cells (and some protists). Plant cells have vacuoles that can perform some similar functions. Prokaryotic cells lack membrane - bound organelles.
- Lysosomes contain digestive enzymes that break down various substances such as proteins, lipids, and nucleic acids.
- In a cell membrane diagram, the phospholipid forms the bilayer structure. Recognition proteins are usually with attached carbohydrates, nutrient molecules are not part of the basic membrane structure in this context, and carbohydrates are often attached to proteins or lipids on the membrane surface.
- Facilitated transport uses protein carriers to move substances down their concentration gradient (no ATP required). Active transport uses protein carriers to move substances against their concentration gradient (requires ATP). But both use protein carriers.
- The nucleus contains the genetic material (DNA) which controls most of the cell's processes by directing the synthesis of proteins.
- Mitochondria (which can be represented as (Z) in a typical cell diagram) are the powerhouses of the cell, responsible for energy (ATP) production through cellular respiration.
Answer:
- A. in animal cells
- C. digestive enzymes
- B. Phospholipid
- C. require protein carriers
- A. nucleus
- D. Z