BIOLOGY
12th Edition
ISBN: 9781260169614
Author: Raven
Publisher: RENT MCG
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Chapter 28, Problem 11U
Summary Introduction
Introduction:
“Choanoflagellates” belong to the group of Opisthokonts which are close to the animals like sponges in the evolutionary history. These organisms have a collar shaped cell with flagella and filaments which helps in the ingestion of food and water. This characteristic feature is close to the features of the cells present in the sponges. There is identity in the surface receptors present on the surface of choanoflagellates and the sponges that aids in cell signaling mechanisms.
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Chapter 28 Solutions
BIOLOGY
Ch. 28.1 - Prob. 1LOCh. 28.1 - Define endosymbiosis and explain how it relates to...Ch. 28.1 - Describe how mitosis in fungi and some protists...Ch. 28.2 - Describe how an organism would be classified as a...Ch. 28.2 - Prob. 2LOCh. 28.2 - Prob. 3LOCh. 28.3 - List the main features of diplomonads and...Ch. 28.3 - Prob. 2LOCh. 28.3 - Prob. 3LOCh. 28.3 - Prob. 4LO
Ch. 28.4 - Identify the distinguishing feature of the members...Ch. 28.4 - Prob. 2LOCh. 28.4 - Prob. 3LOCh. 28.4 - Prob. 4LOCh. 28.5 - Prob. 1LOCh. 28.5 - Distinguish between cellular and plasmodial slime...Ch. 28.6 - Prob. 1LOCh. 28.6 - Describe how humans use red algae.Ch. 28.6 - Explain why charophytes are considered the closest...Ch. 28.7 - Prob. 1LOCh. 28.7 - Prob. 2LOCh. 28.8 - Prob. 1LOCh. 28 - Prob. 1DACh. 28 - Prob. 1IQCh. 28 - Prob. 2IQCh. 28 - Fossil evidence of eukaryotes dates back to a. 2.5...Ch. 28 - DNA is not found in this organelle. a. Endoplasmic...Ch. 28 - Prob. 3UCh. 28 - Both diplomonads and parabasalids a. contain...Ch. 28 - Trypanosomes are examples of a. euglenoids. b....Ch. 28 - Prob. 6UCh. 28 - If a cell contains a pellicle, it a. can change...Ch. 28 - Strainenopila are a. tiny flagella. b. large...Ch. 28 - Choose all of the following that exlubit an...Ch. 28 - Choose all of the following that are...Ch. 28 - Prob. 11UCh. 28 - When food is scarce, cells of this organism...Ch. 28 - Analyze the following statement; and chose the one...Ch. 28 - Determine which feature of the choanoflagellates...Ch. 28 - Examine the life cycle of cellular slime molds,...Ch. 28 - Modem taxooomic treatments rely heavily on...Ch. 28 - Prob. 2SCh. 28 - Design an experiment to demonstrate that cells of...
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- Why are green algae placed in the Protista while plants are placed in a separate kingdom? a. Green algae have a cell wall of chitin, while plants have cell walls of cellulose. b. Plants enclose and protect the embryo within the seed, while green algae do not. c. The green algae use chlorophyll a, while plants use chlorophyll d. Algae reproduce only asexually, while plants reproduce sexually.arrow_forwardWhich protist group exhibits mitochondrial remnants with reduced functionality? a. slime molds b. diatoms c. parabasalids d. dinoflagellatesarrow_forwardWhat is the function of the raphe in diatoms? a. locomotion b. defense c. capturing food d. photosynthesisarrow_forward
- Based on the diagram, which of the following pairs of organisms have the closest evolutionary relationship? A. Radiolarians and Forams B. Diatoms and Euglenozoans C. Ciliates and Radiolarians D. Diplomonads and Euglenozoansarrow_forwardWhich of these locomotor organs would likely be the shortest? a. a flagellum b. a cilium c. an extended pseudopod d. a pelliclearrow_forwardWhich statement about protists is false? a. They can be photosynthetic and one of the foundations of the marine food web. b. Some are multicellular c. They are a monophyletic group. d. Some are parasitic.arrow_forward
- What genus of protists appears to contradict the statement that unicellularity restricts cell size? a. Dictyostelium b. Ulva c. Plasmodium d. Caulerpaarrow_forwardWhich parasitic protist evades the host immune system by altering its surface proteins with each generation? a. Paramecium caudatum b. Trypanosoma brucei c. Plasmodium falciparum d. Phytophthora infestansarrow_forwardWhich of these protists is hypothesized to be ancestral to animals? a. a green algal protist b. a choanoflagellate c. an amoeboid protistd. a slime moldarrow_forward
- Fungi produce which structures for reproduction and multiplication? a. endospores b. cysts. c. spores d. eggsarrow_forwardA vesicle in the cytoplasm is found to contain DNA with nucleotide sequences similar to those found in bacterial DNA. How may have this become present in the cell? a.Endocytosis b.Endosymbiosis c.Autophagy d.Exocytosisarrow_forwardA ciliated epidermis persists in the mature form of a flatworm belonging to which class? a. Turbellaria b. Monogenea c. Trematoda d. Cestodaarrow_forward
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