Question

station 9: who does cellular respiration?

1. a. name 4 types of eukaryotes.

b. what features make these organisms eukaryotes?

1. do bacteria have mitochondria? if not, can they perform cellular respiration?

explain.

1. why is there an asterisk (*) next to the word \every\ in the statement below?

every* living thing on earth performs cellular respiration to get energy to live.

Explanation:

26. a

Eukaryotes are organisms with a true nucleus and membrane - bound organelles. Four common types are:

1. Animals: Multicellular organisms that are heterotrophic, like dogs, humans.
2. Plants: Multicellular, autotrophic (mostly) organisms with cell walls made of cellulose, e.g., trees, flowers.
3. Fungi: Can be unicellular (like yeasts) or multicellular (like mushrooms), heterotrophic, with cell walls made of chitin.
4. Protists: A diverse group of mostly unicellular eukaryotes, e.g., amoeba, paramecium.

Eukaryotes are defined by having a true nucleus that encloses the genetic material (DNA) and membrane - bound organelles such as mitochondria (for energy production), endoplasmic reticulum (for protein and lipid synthesis), Golgi apparatus (for processing and packaging molecules), and in plants, chloroplasts (for photosynthesis). These features distinguish them from prokaryotes (like bacteria) which lack a true nucleus and membrane - bound organelles.

• Step 1: Determine if bacteria have mitochondria. Bacteria are prokaryotes. Prokaryotes do not have membrane - bound organelles, and mitochondria are membrane - bound organelles. So, bacteria do not have mitochondria.
• Step 2: Determine if bacteria can perform cellular respiration. Bacteria can perform cellular respiration. They have respiratory enzymes and electron transport chains located in their cell membrane (plasma membrane). These components allow them to carry out the process of cellular respiration (either aerobic or anaerobic) to generate ATP for energy, even without mitochondria.

Answer:

1. Animals
2. Plants
3. Fungi
4. Protists

26. b