Explore BrainMass

Plant Biology

Biology 3-4

Please give detailed answers. 3. Charles Darwin once described a flower that produced nectar at the bottom of a tube 25 centimeters (10.5 inches) deep. He predicated that there must be a moth or other animal with a 25-centimeters-long tongue to match, and he was right. Such specilization almost certainly means that this pa

Biology 1-2

Please provide detailed explanations. 1. The desert tends to have two catagories of plants: small grasses of herbs, and shrubs or small trees. The grasses and herbs typically have fibrous roots. The shrubs and trees have taproots. What advantages can you think of for each type of root? How does each type of root allow f

Photosynthesis and Respiration

Cellular Respiration and Photosynthesis co-exist as paired processes. Photosynthesis converts light energy into organic molecules such as carbohydrates. These molecules are picked up and utilized as fuel sources in organisms that employ Cellular Respiration for production of ATP and CO2. Although it appears that Photosynthesi

Plant Characteristics Multiple Choice

PLANTS -All modern plants are probably descendants of A. Fungi Green algae Club mosses Horsetails -Protists include A. Ferns Gymnosperms Angiosperms Green algae -An adaptation of land plants that inhibits water loss is the A. cell wall chloroplast cuticle vascular tissue

Plant Biology: Identification and Function

Please view the attached file. 1. Is this plant a member of coniferophyta? 2. Provide the physiological and structural characteristics that allow the specimen collected to be classified as the represented phylum. 3. Discuss how this organism obtains and transports water 4. Discuss the acquisition and transportation of nutr

A Plant's Response to Gravity

According to the statolith hypothesis the cells farther away from the earth elongate while those near the earth do not. true or false and why?

Pasteur Effect, Glucose, Photosystem, and Other Short Answer Questions

1) Louis Pasteur (a French biochemist) investigated the metabolism of yeast which can survive under aerobic or anaerobic conditions. He observed that the yeast consumed sugar at a much faster rate under anaerobic conditions than it did under aerobic conditions. Explain this Pasteur effect. 2) If a plant is kept for many day

AP Biology: Lab 5

OVERVIEW In this experiment you will work with seeds that are living but dormant. A seed contains an embryo plant and a food supply surrounded by a seed coat. When the necessary conditions are met, germination occurs and the rate of cellular respiration greatly increases. In this lab you will: 1. Measure oxygen consumption

AP Biology questions are contained.

The effects of pH and temperature were studied for an enzyme-catalyzed reaction. The following results were obtained. a. How do (1) temperature and (2) pH affect the activity of this enzyme? lii your answer, include a discussion of the relationship between the structure and the function of this enzyme, as well as a discussi

Energy acquisition debated

This job answers these questions: 1. Two possible end products of fermentation are ____________ as is produced by our muscle cell under anaerobic conditions and ____________ by yeast under anaerobic conditions. 2. If C4 photosynthesis prevents photorespiration, why haven't all plants evolved to use the C4 pathway? a.

Production of Radioactive Sugars and Radioactive Oxygen Gas

Suppose an experiement is performed which included Plant I supplied with normal carbon dioxide but with water that contains radioactive oxygen atoms. Plant II is supplied with normal water but with carbon dioxide that contains radioactive oxygen atoms. Each plant is allow to perform photosynthesis and the oxygen gas and sugars


This is for review only. Thank you. A hormone induced dropping of leaves, flowers, fruits or other parts of a plant is: A. Abscission B. Petiolaria C. Assimilation D.Pollination A seed leaf is a: A. seed B. cotyledeon C. monocot D. leaf primordia The fusion of a sperm nucleus with the egg nucleus and the fusion

Multiple choice questions on General Biology

Which Division contains members once used to scrub pots and pans? a. Division Sphenophyta b. Division Psilophyta c. Division Lycophyta d. Division Pterophyta Which of the following has "scale-like" leaves and photosynthetic stems? a. club mosses b. ferns c. horsetails d. hornworts Which of the following describes a

Multiple choice question in General Biology

Sporophytes a. develop from spores and produce gametes. B. are the dominant phase in the life cycle of most terrestrial plants. C. are the haploid stage of the plant life cycle. D. reproduce sexually. In which of the following groups is the sporophyte dependent on the gametophyte? A. Ferns B. Bryophyte

Evolution and Development of Reproduction in Plants

-- Define and briefly discuss both siphonogamy and the seed. -- Which do you think came first? I have a good start on the definitions, but please reword or (briefly) add to them to make them complete: A seed is: a fertilized, integumented, (Sterile covering/coating. Provided by diploid parent) undehiscing (non-splitting. Does

Land Plants, Telome Theory and Rhynia

There are actually three questions here, all dealing with Rhynia (Rhynia is known by two names, the diploid life cycle "Rhynia major", and the haploid life cycle "Rhynia gwynne-vaughanii"). I thought it would be a good idea to put these 3 questions together because they all deal with the same general ideas. 1) HOW HAS THE FER

Biochemistry of photosynthesis is determined.

Do indoor plants create oxygen as a by-product the same way in which outdoor plants do (through photosynthesis)? Is there any advantage to having plants in your house, other than for decor? Does the oxygen provide any added benefit? Does is provide cleaner air to breath? These questions are encompassed.

Solving Practice Problem

We are given the following five sequence: Taxon 1, Taxon 2, Taxon 3, Taxon 4, Taxon 5 TGCCAA, GGACAA, TGTCAA, TGTCAT, GGACAT a) In general, how many unrooted trees are there relation five taxa? b) Draw the following two trees. the first one has taxa 2 and 5 as sister taxa and taxa 1 and 3 as sister taxa. the second one

Comparing chemiosmosis in cell respiration and photosynthesis

Need assistance comparing chemiosmosis in cell respiration and photosynthesis using the attached figures from pages 100 of my text and pg 118 to fill out the enclosed chart. Looking at the diagram I wasn't even sure where to start. Need assistance filling out the chart. See attached files (Chart, pg 100, pg 118)

Light Dependent & Independent Reaction

Review of Photosysthesis as it relates to light Dependent Reaction and Independent Reaction. Using figure 7.11 for review to fill in the blanks in the chart. for blanks A through V. See attached files.

Understanding photosynthesis.

If I have a bumper sticker that says "Have I thanked a green plant today" - How would I interpret this in regards to photosynthesis?

Understanding photosynthesis.

If I am wearing a bright red shirt and I take into account light and pigments why would the shirt appear red to someone?