Biology Revision questions Solutions

This is not for an assignment. It is to study for an exam and I need help to make sure I am on the right track. Thank you. (5 marks) 4. How do fern gametophytes differ from moss gametophytes? (6 marks) 6. How are the excretory organs of annelids different from those of insects? (6 marks)...

Comparison Between Plants and Fungi

What characteristics do plants and fungi share? What characteristics differentiate a plant from a fungus? Which evolved first? Please cite references.

Hardy-Weinberg Problem

Using the Hardy Weinberg equilibrium, calculate the frequencies of this situation: 500 individuals have 80 green flowered plants; the remaining plants have blue flowers. You know that flower colour is determined by one gene with two alleles. Looking at your population, can you determine which al...

Hydra, Nematodes and Planarians

Describe for hydra, nematodes and planarians: - symmetry - shape - germ layers - body covering - cephalization - coelomic cavity - masculature - digestive tract and digestion - excretion - nervous system - sense organs - sexual reproduction - asexual reproduction.

The process of CAM photosynthesis

Explain the process of CAM photosynthesis using native plants as examples of the process in action. Feel free to consult outside sources for additional data to support your discussion.

Photosynthesis

1. What is the relationship between an increase in light intensity and photosynthetic rate in leaves from a corn plant? How does this relationship compare with tomato plants? 2. Photosynthetic saturation is the maximum rate of photosynthesis. What value of light intensity produced photosynthetic sa...

Photosynthesis and Thermodynamics

Be certain to describe three or more ways in which the plant cell and the solar cell are similar to each other, as well as three or more ways in which they are different from each other. In addition, please explain how the laws of thermodynamics apply to each system.

Scientific method is depicted.

You grow three plants with a light to the left of them and three plants with a light to the right of them. The leaves of the plants with the light on the left turned toward the left and the tops of the plants grew toward the left. The leaves of the plants with the light on the right turned toward...

Chlorophyll and Accessory Pigments

Plant leaves appear green because they ________ light spectrum. A) scatter all colors except the green wavelength of the visible B) scatter the green wavelength of the visible C) absorb the green wavelength of the visible D) scatter the green wavelength of the ultraviolet E) absorb the green wa...

Distribution of ocean plants

The organisms associated with patches of floating ocean vegetation would be an example of: a. random dispersion b. aggregated distribution c. uniform dispersion d. density-dependent distribution e. clumped dispersion

If plants are experimentally grown in an environment

If plants are experimentally grown in an environment with extra carbon dioxide, how do you expect this will affect photosynthesis? - I think will accelerate photosynthesis and growth of plant, then again plants do not uptake CO2 at night so there would be an accumalation and this would seem point...

REACTIONS

The reactions of photosynthesis are divided into two categories: a. light-independent reactions and carbon fixation reactions b. carbon fixation reactions and oxygen fixation reactions c. light dependent and carbon fixation reactions d. light dependent and citric acid cycle e. chemiosmos...

The overall reaction of photosynthesis

The overall reaction of photosynthesis are best summarized as: a. 12 CO2+6H20---C6H12O6+12O2+6H2O B. C6H12O6 + 6O2+6H20---6CO2+12H2O C. 6CO2+12H2O---C6H12O6+6O2+6H20 D. 6CO2+12H20---C6H12O6+12O2 E. 6H2CO3+6H20---C6H12O6+C6H12O6+6H20+6O2

Stearidonic Acid (SDA) in Soy Plants

1) The biochemical pathway by which SDA is produced in the modified soya plants is shown in the diagram attached. The fatty acids and transformation shown in black occur naturally in unmodified soya, whilst those shown in red are those which occur as a result of the modification process. In the c...

Cellular Respiration and Photosynthesis

Cellular Respiration and Photosynthesis co-exist as paired metabolic processes. Photosynthesis uses light energy to convert carbon dioxide into glucose, a simple sugar, in two steps, the light dependent and light independent reactions. Oxygen is produced as a by product during photosynthesis. Thi...

study the effects of geotropism and auxin on plant development

Geotropism Lab 1. Why do plants always grow the correct way? The stems and leaves always grow up, and the roots always grow downward, but, how do they know which way is which? What keeps them from getting confused and growing upside down? Look up the word "auxin" and describe its function. 2...

Tissue water potential

2a. Graph the change in weight versus the concentration of mannitol . Draw on the graph how you would estimate the water potential of the tissue 2b. Graph the change in length versus the concentration of mannitol. Draw on the graph how you would estimate the water potential of the tissue...

Botany, Crop Science

1. Please label the five parts (per drawing, attached). ? (Perhaps- Label according to position of identification boxes (from top to bottom), with some description). 2. In double fertilization, one sperm units with the egg nuclei to form the zygote, and the other sperm unites with t...

Science

PART I: SCIENTIFIC METHOD Each and every day, we are faced with having to make split-second decisions, and the need to solve random problems that we encounter. To reach those decisions and work those problems out you are subconsciously using the scientific method. Apply the five steps of the Scie...

Describe modified parts of an angiosperm.

My assignment is on the mangrove tree Angiosperms (flowering plants) are the largest Phylum in the Plant Kingdom (Angiospermophyta is also called Anthophyta or Magnoliophyta). These plants have true roots, stems, leaves and flowers. The roots grow into the soil to anchor the plant in place and ta...

Find an angiosperm that has modified leaves, stems, roots, or flowers.

Find an angiosperm that has modified leaves, stems, roots or flowers that do not function in the normal manner, or that function in an unusual manner. Angiosperms (flowering plants) are the largest Phylum in the plant kingdom (Angiospermophyta is also called Anthophyta or Magnoliophyta). These pl...

Transgenic Plants Biotechnology

(Transgenic plants) 1.Briefly describe this biotechnology application. 2.How is it used today. 3.Based upon the definition of biotechnology, describe how this biotechnology application is an example of biotechnology. 4.What benefits are derived from this application? 5.Are there any c...

Explain the processes of photosynthesis and cellular respiration.

Details: There are two main types of cells: prokaryotic and eukaryotic. Bacterial cells are prokaryotic. Select two structures of bacterial cells and briefly describe them; what do they look like, what are they composed of? Then, explain how these two structures allow bacterial cells to survive a...

Genetic Diversity

Define genetic diversity and explain the importance of genetic diversity for crop plants and livestock