QUESTION 46 Hormones are perceived by receptors on cell membranes that stimulate signaling pathways leading to cellular responses. ( ) proteins are cytokinin receptors; ( ) protein is a Gibberellin receptor; ( . ) is an ABA receptor. His GID1B PYL QUESTION 47 Seed gemination is controlled by two hormones, ( ) promotes seed germination, while ( ) promotes seed dormancy.
Added by Todd C.
Close
Step 1
The integral transmembrane protein GIDP2, PYL4, and PYL5 are receptors for cytokinin, gibberellin, and ABA respectively. Show more…
Show all steps
Your feedback will help us improve your experience
Shaiju T and 54 other Biology educators are ready to help you.
Ask a new question
Labs
Want to see this concept in action?
Explore this concept interactively to see how it behaves as you change inputs.
Key Concepts
Recommended Videos
You incubate a cell line with a hormone, which triggers intracellular signaling by binding to a specific membrane receptor. You realize that these cells are producing extracellular vesicles (ECVs) following hormone treatment. You want to study if these are exosomes or ectosomes. Outline an experiment that can help you answer this question.
Sri K.
Steroid hormones: - Act in the nucleus to alter gene expression. - Phosphorylate target proteins to affect cell activities. - Signal through G-proteins to protein kinases. - Bind to membrane receptors to upregulate target genes. QUESTION 16: Calmodulin becomes activated: - Through phosphorylation by PEC. - Through calcium binding EF-hands.
Adi S.
For questions $2-8,$ match each statement with a hormone in the key. Answers can be used more than once. KEY: a. auxin b. gibberellin c. cytokinin d. ethylene e. abscisic acid Stomata close when a plant is water-stressed.
Recommended Textbooks
Biology for AP Courses
Objective Biology for NEET
Introduction to General, Organic and Biochemistry
Transcript
18,000,000+
Students on Numerade
Trusted by students at 8,000+ universities
Watch the video solution with this free unlock.
EMAIL
PASSWORD