SAAT (English)

Biology & Environment: sample 10

These questions are ETEC/Qiyas's own officially published trial-exam questions, shown here with attribution. They are not sold and are not part of Smart Advanced Network for Education, Development & Achievement's original question bank.

Directions

Read the following questions. Choose the right answer.

There is only ONE correct answer to each question.

Which of the following provides sieve tube elements with energy (ATP)?

companion cells
fibres
stalk cells
vessel elements

Show answer

Correct answer: A. companion cells

Why

Sieve tube elements lack a nucleus and most organelles, so adjoining companion cells supply them with ATP and metabolic support.

Source: The Standardized Academic Achievement Test (SAAT) for the Science Track Trial Test (ETEC official) Open the official document

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