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Pollination Process Overview

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Questions and Answers

What is the function of the generative nucleus in the pollen grain?

Develop into seeds after fertilization

Undergo mitotic division to produce sperm nuclei (correct)

Produce the megaspore mother cell

Cover the seed coat

What is the role of the funiculus in the ovule?

Forms the integuments

Contains the micropyle

Produces the seed coat

Attaches the ovule to the ovary (correct)

Which cell in the ovule is much different from the surrounding cells and undergoes meiosis?

Megaspore mother cell (correct)

Generative nucleus

Antipodals

Synergids

What happens to 3 out of the 4 megaspores produced by the megaspore mother cell?

They disintegrate Signup and view all the answers

What is the function of synergids in an embryo sac?

Disintegrate after fertilization Signup and view all the answers

What part of an ovule becomes the seed coat?

Integuments Signup and view all the answers

What is pollination?

Process of transferring pollen grain to stigma Signup and view all the answers

What is the starting material for the Kreb's Cycle?

Acetyl CoA Signup and view all the answers

Which molecule is formed by the condensation of acetyl CoA with oxaloacetate in the citric acid cycle?

Citrate Signup and view all the answers

What is the function of aconitase in the citric acid cycle?

Dehydrates citrate to form isocitrate Signup and view all the answers

Which molecule is released when isocitrate is oxidized in the TCA cycle?

Carbon Dioxide Signup and view all the answers

What is the main role of isocitrate dehydrogenase in the citric acid cycle?

Reduces NAD+ to form NADH Signup and view all the answers

What happens to acetyl CoA in the citric acid cycle?

It forms citrate with oxaloacetate Signup and view all the answers

What role do NADH and FADH2 play in cellular respiration?

Harvest bond energy Signup and view all the answers

What is the primary function of oxidative phosphorylation?

Generate ATP Signup and view all the answers

In which stage of cellular respiration are most ATP molecules produced?

Electron Transport Chain Signup and view all the answers