$$6\ \text{CO}_2 + 6\ \text{H}_2\text{O} \rightarrow C_6H_{12}O_6$ + 6\ \text{O}_2$$

Question 1

Based on the diagram of plant transport, which process is primarily responsible for moving water from roots to leaves?

Accepted Answer

Transpiration

Question 2

Which equation best represents the process of photosynthesis occurring in the leaves of plants?

Accepted Answer

$$6\ 	ext{CO}_2 + 6\ 	ext{H}_2	ext{O} ightarrow C_6H_{12}O_6$ + 6\ 	ext{O}_2$$

Question 3

If a plant is drought-stressed, which of the following is most likely to decrease?

Accepted Answer

Carbon dioxide uptake

Question 4

Which cell type is directly involved in regulating gas exchange in leaves?

Accepted Answer

Guard cells

Question 5

What is the main function of the xylem tissue in plants?

Accepted Answer

Transport of water and minerals

Question 6

Which principle explains the movement of water from soil into root cells?

Accepted Answer

Osmosis

Question 7

In the alternation of generations, which process produces haploid spores from a diploid sporophyte?

Accepted Answer

Meiosis

Question 8

Which plant group is characterized by the presence of seeds but not flowers?

Accepted Answer

Gymnosperms

Question 9

What is a shared derived trait of angiosperms compared to gymnosperms?

Accepted Answer

Fruits and flowers

Question 10

Which of the following is an example of artificial selection?

Accepted Answer

Wild mustard evolving into cabbage, broccoli, and kale

Question 11

Which statement best describes the difference between artificial selection and natural selection?

Accepted Answer

Artificial selection is driven by human choice, natural selection is driven by environmental pressures

Question 12

Which of the following is a real concern associated with GMOs?

Accepted Answer

Potential for gene flow to wild relatives

Question 13

Which equation describes water potential ($$\Psi) in $$plant cells?

Accepted Answer

$$\Psi = \Psi_s + \Psi_p$$

Question 14

Which of the following is NOT a prezygotic barrier to speciation?

Accepted Answer

Hybrid sterility

Question 15

What is the most important factor in the process of speciation?

Accepted Answer

Reproductive isolation

Question 16

Which statement about nitrogen-fixing bacteria is correct?

Accepted Answer

They use energy to break bonds in N$$_2$$ molecules

Question 17

Which of the following is NOT a nutrient plants obtain from the soil?

Accepted Answer

Carbon

Question 18

What is homology?

Accepted Answer

Similarity based on shared ancestry

Question 19

Which hormone is involved in the closure of stomata during drought stress?

Accepted Answer

Abscisic acid

Biology Study Guide: Plant Physiology, Evolution, and Genetics

Study Guide - Practice Questions