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Describe the stages of cellular development prior to tissue stages. Your response should be approximately one paragraph in length and include the keywords: cleavage, morula, blastula, blastocoel.

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Hubert Koch
Hubert KochLv2
29 Sep 2019

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Related questions

pleas pleas do all parts

1-Are both the egg and zygote of a sea star the same size?

2-Do the cells of a two-cell sea star embryo differ in size?

3-Does the sea star embryo appear to be growing during cleavage?

4-What structures will the archenteron develop into?

5-What obvious visual change occurs in a frog egg upon fertilization?

6-How is the orientation of the blastocoel in an amphibian blastula different than that of a sea star?

7-What structures will form from the neural fold of the frog embryo?

8-In a chick embryo at gastrulation, what does the primitive streak indicate?

9-What are the segmented units that are visible along the dorsal axis of the 33 hour chick embryo?

10-The basic stages of development are quite similar for a wide range of organisms. How would you explain such consistency?

Please reword/ rephrase the following in one paragraph thank you

Leaves are determinate structures whose primary function is to produce carbohydrates required for plant growth and development. From a developmental standpoint, leaves are interesting because they display a wide range of genetically and developmentally regulated variation in shape, and because their morphological simplicity and accessibility make them an ideal system for the analysis of basic problems in plant development. Growth control, pattern formation, and cell and tissue differentiation can all be conveniently studied in the context of leaf development. Although many of these problems have yet to be addressed in Arabidopsis, this situation is changing rapidly. This is due in part to the advantages of Arabidopsis for genetic and molecular analysis, but the relatively small size of the Arabidopsis leaf is an equally important advantage of this species because it permits microscopic analysis of an entire leaf at all stages of development.

Like most plants, Arabidopsis exhibits subtle heteroblasty (first described by Röbbelen 1957), in that leaves produced at different stages of shoot development vary in their morphology (Fig. 1). At a gross level, there are two distinct leaf types: rosette leaves and bracts. Rosette leaves are produced early in development and have long petioles and broad blades. Bracts (sometimes referred to as cauline leaves) form at the basal nodes of each branch in the inflorescence and differ from rosette leaves in that they lack petioles and have narrower, more oblong blades.

What are the three stages of glycolysis? Describe how glucose is activated and how ATP is made from the catalysis of glucose to pyruvate. Be specific as possible. What is substrate phosphorylation? How does it occur? How many ATP are used up? How many produced?

PLEASE include the activity of key enzymes in the response above (aldolase, Glyceraldehyde 3-phosphate dehydrogenase, Phosphoglycerokinase, and Pyruvate kinase)

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