CXC BIOLOGY - Nutrition

Distinguish between autotrophic and heterotrophic nutrition. (Select the correct options).

• Autotrophs make their own food.

• Autotrophs depend on other organisms for food.

• Heterotrophs make their own food.

• Heterotrophs depend on other organisms for food.

Which of the following options describes what happens during saprophytic nutrition?

• Sunlight is converted into food for the organism.

• Enzymes are secreted out of the body to digest food externally for subsequent absorption.

• Other organisms are killed and eaten.

• None of the above.

Which of the following uses can leaf cells make of the glucose they produce during photosynthesis.

• Excrete it.

• Use it during cellular respiration to produce energy for growth.

• Store it in the chloroplast as starch grains.

• Use it to make cellulose for cell wall maintenance or construction.

Tags

NGSS.MS-LS1-6

NGSS.MS-LS1-7

Which of the following scenarios is most likely to occur to increase the potential of plants below the canopy (the coverage of the tallest trees) in a rainforest to photosynthesize more efficiently.

• She some of its leaves.

• The leaves become yellow and orange.

• The leaves become a darker green.

• The tree are shorter with wider branches.

Tags

NGSS.MS-LS1-5

NGSS.MS-LS1-6

Identify two organisms that can feed saprophytically.

• fungi

• passion fruit vine

• soil bacteria

• leeches

Photosynthesis is the process by which _________

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

Look at the image of a drawing of the transverse section through a dicotyledon leaf. Identify the structures correctly.

• V- palisade mesophyll; W- epidermis; X- cuticle; Y- phloem; A- xylem; Z- stoma

• V- cuticle; W- epidermis; X- palisade mesophyll; Y- xylem; A- phloem; Z - stoma

• V- epidermis; W- cuticle; X- palisade mesophyll; Y- phloem; A- xylem; Z - stoma

Tags

NGSS.MS-LS1-2

The image shows a longitudinal section through a canine tooth. Identify the structure labelled A.

The image shows a longitudinal section through a canine tooth. Identify the structure labelled B.

The image shows a longitudinal section through a canine tooth. Identify the structure labelled C.