Leghemoglobin is produced in some root nodules

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Reference no: EM133934939

Questions

1. In which plant cell or tissue would the pressure component of water potential most often be negative?

a. root cortex cell

b. leaf mesophyll cell

c. stem xylem

d. root epidermis

e. stem phloem

2. Leghemoglobin is produced in some root nodules to

a. bind oxygen in the nodule to keep the area anaerobic.

b. attract bacteria in the soil to the developing nodule.

c. transport oxygen from air in the soil to the root tissues.

d. feed the symbiotic bacteria.

e. supply iron to the nitrogenase enzyme.

3. Microsporangia in flowering plants are located in the

a. sepals.

b. carpel.

c. petals.

d. stamen.

e. receptacle.

4. Mitotic activity by the apical meristem of a root makes which of the following more possible?

a. increased delivery of water to the aboveground stem

b. effective lateral growth of the stem

c. increased absorption of carbon dioxide

d. decreased absorption of mineral nutrients

5. Most moss gametophytes do not have a cuticle and are 1-2 cells thick. What does this imply about moss gametophytes and their structure?

a. They have branching veins in their leaves.

b. They can easily lose water to, and absorb water from, the atmosphere.

c. Photosynthesis occurs throughout the entire gametophyte surface.

d. They need stomata for gas exchange.

Reference no: EM133934939

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