The proenzyme pepsinogen is secreted mainly from which of the following structures?

TLS Online TPP Program

#Question id: 12159

#Unit 9. Diversity of Life Forms

You are given the task of designing an aerobic, mixotrophic protist that can perform photosynthesis in fairly deep water (e.g., 250 m deep), and can also crawl about and engulf small particles. With which two of these structures would you provide your protist?

1. hydrogenosome

2. apicoplast

3. pseudopods

4. chloroplast from red alga

5. chloroplast from green alga

TLS Online TPP Program

#Question id: 12160

#Unit 9. Diversity of Life Forms

Which of these was not derived from an ancestral alpha proteobacterium?

TLS Online TPP Program

#Question id: 17281

#Unit 9. Diversity of Life Forms

Identify each of the following structures as haploid or diploid: 

A) sporophyte 

B) spore 

C) gametophyte 

D) zygote 

E) Sperm

TLS Online TPP Program

#Question id: 17282

#Unit 9. Diversity of Life Forms

Which of the following is a land plant that produces flagellated sperm and has a sporophyte-dominated life cycle? 

TLS Online TPP Program

#Question id: 17283

#Unit 9. Diversity of Life Forms

The structural integrity of bacteria is to peptidoglycan as the structural integrity of plant spores is to__

TLS Online TPP Program

#Question id: 17284

#Unit 9. Diversity of Life Forms

Which kind of plant tissue should lack phragmoplasts?