Concept explainers
To suggest: A hypothesis that would explainthe given observation.
Introduction: The plant is a multicellular organism in the kingdom Plantae. It uses photosynthesis to make its own food. Photosynthesis is a process by which green plants and certain other organisms transform light energy into chemical energy. The process of photosynthesis takes place in two sequential stages, which include light-dependent reactions and light-independent reactions.
Explanation of Solution
Blackman measured photosynthesis rates under differing intensities of light, carbon dioxide, and temperatures. Blackman found that increasing light intensity above 2000 foot-candles does not lead to any further increase in the rate of photosynthesis.
The light energy is used to generate adenosine triphosphate (ATP) and nicotinamide adenine dinucleotide phosphate hydrogen (NADPH) that can then be used to reduce carbon dioxide. The chlorophyll molecules absorb the photons of light energy. Thus, increasing light intensity increase photosynthesis, but it will saturate when all chlorophyll molecules are in use.
Want to see more full solutions like this?
Chapter 8 Solutions
BIOLOGY
- Species Interactions Explain how predators, prey and scavengers interact. Explain whether predators and scavengers are necessary or beneficial for an ecosystem.arrow_forwardmagine that you are conducting research on fruit type and seed dispersal. You submitted a paper to a peer-reviewed journal that addresses the factors that impact fruit type and seed dispersal mechanisms in plants of Central America. The editor of the journal communicates that your paper may be published if you make ‘minor revisions’ to the document. Describe two characteristics that you would expect in seeds that are dispersed by the wind. Contrast this with what you would expect for seeds that are gathered, buried or eaten by animals, and explain why they are different. (Editor’s note: Providing this information in your discussion will help readers to consider the significance of the research).arrow_forwardWhat is the difference between Uniporters, Symporters and Antiporters? Which of these are examples of active transport?arrow_forward
- What are Amyloid Fibrils? What biological functions are these known to perform?arrow_forwardHow do histamine and prostaglandins help in the mobilization of leukocytes to an injury site? What are chemotactic factors? How do they affect inflammation process?arrow_forwardCompare and contrast neutrophils and macrophages. Describe two ways they are different and two ways they are similar.arrow_forward
- Describe the effects of three cytokines (not involved in the initial inflammation response). What cells release them?arrow_forwardDescribe activation of helper T cells or cytotoxic T cellsarrow_forwardCompare and contrast MHC 1 and MHC 2. Describe two way they are different and two ways they similar including how they are used in antigen presentation.arrow_forward
- Concepts of BiologyBiologyISBN:9781938168116Author:Samantha Fowler, Rebecca Roush, James WisePublisher:OpenStax College