Bio 121 Lab: Final Lab 1 - Prokaryotes Genus Bifidobacterium Traits

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What is the purpose of the micronucleus in a Paramecium cell?

Stores genetic material for the organism

Describe the function of the pellicle in Paramecium.

Firm and flexible outer covering made of the cell membrane

How does a Paramecium obtain food and energy?

Through photosynthesis

Explain the process of asexual reproduction in Paramecium.

Mitosis: Genetic material is duplicated and two small semi-cells grow between original semi-cells, gradually increasing in size Signup and view all the answers

What is the outcome of sexual reproduction through conjugation in Paramecium?

Formation of a diploid cell called a zygote Signup and view all the answers

How does a Paramecium adapt to produce enough enzymes and other molecules to control its large, very active, unicellular body?

Macronucleus undergoes repeated duplications of chromosomes Signup and view all the answers

What are the adaptations of Fucus for survival in its habitat?

Air sacs/pneumatocyst, Holdfasts, Mucilage covered blade, Conceptacles in Receptacles Signup and view all the answers

What is the habitat for Bifidobacterium?

Human intestine Signup and view all the answers

How does Rhizopus obtain food and energy?

Secrete amylase that breaks down starch into sugar; Saprobe Signup and view all the answers

How does Anabaena obtain food and energy?

Through photosynthesis; produces energy-rich molecules Signup and view all the answers

What is the main method of reproduction for Sordoria?

Sexual reproduction through asci containing ascospores Signup and view all the answers

What is the adaptation in Halobacterium that prevents dehydration from salt?

Halorhadopsin Signup and view all the answers

Describe the reproductive strategies of Polytrichum.

Asexual fragmentation and Alternation of Generation Signup and view all the answers

What is the main component of a prokaryotic cell that may help in attachment to surfaces?

Pili Signup and view all the answers

What are the main adaptations of Lycopodium for survival in its habitat?

Vascular Tissue, Aerial Stem, Sporophyll, Thick 2ndary wall Signup and view all the answers

What is the main difference between Gram-positive and Gram-negative bacteria?

Gram-positive bacteria have a thick cell wall of peptidoglycan and appear purple, while Gram-negative bacteria have a thin cell wall of peptidoglycan and appear pink. Signup and view all the answers

What is the classification of Amoeba in terms of domain, kingdom, and phylum?

Eukarya, Protista, Amoebozoa Signup and view all the answers

What is the function of the contractile vacuole in Amoeba?

It prevents the cell from taking in too much water and bursting, thus aiding in osmoregulation. Signup and view all the answers

What is the adaptation in Anabaena for nitrogen fixation?

Heterocyst Signup and view all the answers

How does Paramecium obtain food and energy?

By gathering prey as it swims, including bacteria and small protists, and going through intercellular digestion. Signup and view all the answers

Name one friend of Bifidobacterium and describe its shape and size.

Streptococcus; Coccus shape, in chains, size of 0.009mm Signup and view all the answers